warning light TOYOTA RAV4 1996 Service Service Manual
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connector C20, terminals No. 5 (circuit IG2, Black/Orange wire) and No. 6 (circuit ACC, Gray wire). See
Fig. 16
. If voltage is more than 16 volts, check battery and charging system operation. If voltage is less
than 16 volts, go to next step.
3. Clear DTCs. See CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK
position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds.
Repeat at least 5 times. Retrieve DTCs. See RETRIEVING CODES
under DIAGNOSIS & TESTING.
If DTC 31/B1100 is displayed, replace air bag sensor assembly. If DTC 31/B1100 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT .
DTC 51/B0107: SHORT TO GROUND IN PASSENGER-SIDE AIR BAG SQUIB CIRCUIT
Description
The passenger-side air bag squib circuit consists of the air bag sensor assembly and passenger-side air bag
module. The squib circuit causes the passenger-side air bag to deploy when deployment conditions are satisfied.
Possible Causes
DTC 51/B0107 could be caused by a short to ground in Yellow/Red (circuit P+) and Yellow/Green (circuit P-)
wires in passenger-side air bag squib circuit, passenger-side air bag squib malfunction or air bag sensor
assembly malfunction.
Diagnostic Procedure
1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM.
2. Measure resistance between ground and Yellow/Red wire (circuit P+) of air bag sensor assembly side of
passenger-side air bag squib harness connector. See WIRING DIAGRAMS
. If resistance is less than
one megohm, repair or replace harness or connector between passenger-side air bag module and air bag
sensor assembly. If resistance is more than one megohm, go to next step.
3. Reconnect air bag sensor assembly connector C20 (center connector) to air bag sensor assembly. Connect
jumper wire between Yellow/Red wire (circuit P+) and Yellow/Green wire (circuit P-) of air bag sensor
assembly side of passenger-side air bag squib harness connector. Connect negative battery cable. Wait at
least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 51/B0107 is not displayed, go to
next step. If DTC 51/B0107 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect passenger-side air bag module connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs. NOTE: During testing, if DTCs other than DTC 51/B0107 are displayed, disregard them.
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See RETRIEVING CODES under DIAGNOSIS & TESTING. If DTC 51/B0107 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT . If DTC 51/B0107 is displayed, replace passenger-side air bag module.
DTC 52/B0108: SHORT TO BATTERY IN PASSENGER-SIDE AIR BAG SQUIB CIRCUIT
Description
The passenger-side air bag squib circuit consists of the air bag sensor assembly and passenger-side air bag
module. The squib circuit causes the passenger-side air bag to deploy when deployment conditions are satisfied.
Possible Causes
DTC 52/B0108 could be caused by a short to battery in Yellow/Red (circuit P+) and Yellow/Green (circuit P-)
wires in passenger-side air bag squib circuit, passenger-side air bag squib malfunction or air bag sensor
assembly malfunction.
Diagnostic Procedure
1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM. Reconnect negative battery cable.
2. Turn ignition switch to ACC or ON position. Measure voltage between ground and Yellow/Red wire
(circuit P+) of air bag sensor assembly side of passenger-side air bag squib harness connector. See
WIRING DIAGRAMS
. If voltage is zero volt, go to next step. If voltage is not zero volt, repair or
replace harness or connector between passenger-side air bag module and air bag sensor assembly.
3. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect air bag sensor assembly connector
C20 (center connector) to air bag sensor assembly. Connect jumper wire between Yellow/Red wire
(circuit P+) and Yellow/Green wire (circuit P-) of air bag sensor assembly side of passenger-side air bag
squib harness connector. Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to
ACC or ON position. Wait at least 20 seconds. Clear DTCs. See CLEARING CODES
under
DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at least 20 seconds. Turn
ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING
CODES under DIAGNOSIS & TESTING. If DTC 52/B0108 is not displayed, go to next step. If DTC
52/B0108 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect passenger-side air bag module connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 52/B0108 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT . If DTC 52/B0108 is displayed, replace passenger-side air bag module.
DTC 53/B0105: SHORT IN PASSENGER-SIDE AIR BAG SQUIB CIRCUIT NOTE: During testing, if DTCs other than DTC 52/B0108 are displayed, disregard them.
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Description
The passenger-side air bag squib circuit consists of the air bag sensor assembly and passenger-side air bag
module. The squib circuit causes the passenger-side air bag to deploy when deployment conditions are satisfied.
Possible Causes
DTC 53/B0105 could be caused by a short in Yellow/Red (circuit P+) and Yellow/Green (circuit P-) wires in
passenger-side air bag squib circuit, passenger-side air bag squib malfunction or air bag sensor assembly
malfunction.
Diagnostic Procedure
1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM.
2. Release shorting spring on air bag sensor connector C20 (center connector). See RELEASING
SHORTING SPRING under DIAGNOSIS & TESTING. Measure resistance between Yellow/Red wire
(circuit P+) and Yellow/Green wire (circuit P-) of air bag sensor assembly side of passenger-side air bag
squib harness connector. See WIRING DIAGRAMS
. If resistance is more than one megohm, go to next
step. If resistance is less than one megohm, repair or replace harness or connector between passenger-side
air bag module and air bag sensor assembly.
3. Reconnect air bag sensor assembly connector C20 to air bag sensor assembly. Connect negative battery
cable. Wait at least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds.
Clear DTCs. See CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK
position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds.
Retrieve DTCs. See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 53/B0105 is not
displayed, go to next step. If DTC 53/B0105 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect passenger-side air bag module connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 53/B0105 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT . If DTC 53/B0105 is displayed, replace passenger-side air bag module.
DTC 54/B0106: OPEN IN PASSENGER-SIDE AIR BAG SQUIB CIRCUIT
Description
The passenger-side air bag squib circuit consists of the air bag sensor assembly and passenger-side air bag
module. The squib circuit causes the passenger-side air bag to deploy when deployment conditions are satisfied.
Possible Causes
NOTE: During testing, if DTCs other than DTC 53/B0105 are displayed, disregard them.
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DTC 54/B0106 could be caused by an open in Yellow/Red (circuit P+) and Yellow/Green (circuit P-) wires in
passenger-side air bag squib circuit, passenger-side air bag squib malfunction or air bag sensor assembly
malfunction.
Diagnostic Procedure
1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM.
2. Measure resistance between Yellow/Red wire (circuit P+) and Yellow/Green wire (circuit P-) of air bag
sensor assembly side of passenger-side air bag squib harness connector. See WIRING DIAGRAMS
. If
resistance is less than one ohm, go to next step. If resistance is more than one ohm, repair or replace
harness or connector between passenger-side air bag module and air bag sensor assembly.
3. Reconnect air bag sensor assembly connector C20 (center connector) to air bag sensor assembly. Connect
jumper wire between Yellow/Red wire (circuit P+) and Yellow/Green wire (circuit P-) of air bag sensor
assembly side of passenger-side air bag squib harness connector. Connect negative battery cable. Wait at
least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 54/B0106 is not displayed, go to
next step. If DTC 54/B0106 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect passenger-side air bag module connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 54/B0106 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT . If DTC 54/B0106 is displayed, replace passenger-side air bag module.
DTC 61/B0132: SHORT TO GROUND IN PASSENGER-SIDE SEAT BELT PRETENSIONER SQUIB
CIRCUIT
Description
The passenger-side seat belt pretensioner squib circuit consists of the air bag sensor assembly and passenger-
side seat belt pretensioner. The squib circuit causes the passenger-side seat belt pretensioner to deploy when
deployment conditions are satisfied.
Possible Causes
DTC 61/B0132 could be caused by a short to ground in Yellow/Black (circuit PR+) and Yellow (circuit PR-)
wires in passenger-side seat belt pretensioner squib circuit, passenger-side seat belt pretensioner squib
malfunction or air bag sensor assembly malfunction. NOTE: During testing, if DTCs other than DTC 54/B0106 are displayed, disregard them.
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Diagnostic Procedure
1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM.
2. Measure resistance between ground and Yellow/Black wire (circuit PR+) of air bag sensor assembly side
of passenger-side seat belt pretensioner squib harness connector. See WIRING DIAGRAMS
. If
resistance is less than one megohm, repair or replace harness or connector between seat belt pretensioner
and air bag sensor assembly. If resistance is more than one megohm, go to next step.
3. Reconnect air bag sensor assembly connector C21 to air bag sensor assembly. Connect jumper wire
between Yellow/Black wire (circuit PR+) and Yellow wire (circuit PR-) of air bag sensor assembly side
of passenger-side seat belt pretensioner squib harness connector. Connect negative battery cable. Wait at
least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 61/B0132 is not displayed, go to
next step. If DTC 61/B0132 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect passenger-side seat belt pretensioner connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 61/B0132 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT . If DTC 61/B0132 is displayed, replace passenger-side seat belt
pretensioner.
DTC 62/B0133: SHORT TO BATTERY IN PASSENGER-SIDE SEAT BELT PRETENSIONER SQUIB
CIRCUIT
Description
The passenger-side seat belt pretensioner squib circuit consists of the air bag sensor assembly and passenger-
side seat belt pretensioner. The squib circuit causes the passenger-side seat belt pretensioner to deploy when
deployment conditions are satisfied.
Possible Causes
DTC 62/B0133 could be caused by a short to battery in Yellow/Black (circuit PR+) and Yellow (circuit PR-)
wires in passenger-side seat belt pretensioner squib circuit, passenger-side seat belt pretensioner squib
malfunction or air bag sensor assembly malfunction.
Diagnostic Procedure
NOTE: During testing, if DTCs other than DTC 61/B0132 are displayed, disregard them.
NOTE: During testing, if DTCs other than DTC 62/B0133 are displayed, disregard them.
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1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM. Reconnect negative battery cable.
2. Turn ignition switch to ON position. Measure voltage between ground and Yellow/Black wire (circuit
PR+) of air bag sensor assembly side of passenger-side seat belt pretensioner squib harness connector.
See WIRING DIAGRAMS
. If voltage is not zero volt, repair or replace harness or connector between
seat belt pretensioner and air bag sensor assembly. If voltage is zero volt, go to next step.
3. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect air bag sensor assembly connector C21 to air bag sensor assembly. Connect jumper wire
between Yellow/Black wire (circuit PR+) and Yellow wire (circuit PR-) of air bag sensor assembly side
of passenger-side seat belt pretensioner squib harness connector. Connect negative battery cable. Wait at
least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 62/B0133 is not displayed, go to
next step. If DTC 62/B0133 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect passenger-side seat belt pretensioner connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 62/B0133 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT . If DTC 62/B0133 is displayed, replace passenger-side seat belt
pretensioner.
DTC 63/B0130: SHORT IN PASSENGER-SIDE SEAT BELT PRETENSIONER SQUIB CIRCUIT
Description
The passenger-side seat belt pretensioner squib circuit consists of the air bag sensor assembly and passenger-
side seat belt pretensioner. The squib circuit causes the passenger-side seat belt pretensioner to deploy when
deployment conditions are satisfied.
Possible Causes
DTC 63/B0130 could be caused by a short between Yellow/Black (circuit PR+) and Yellow (circuit PR-) wires
in passenger-side seat belt pretensioner squib circuit, passenger-side seat belt pretensioner squib malfunction or
air bag sensor assembly malfunction.
Diagnostic Procedure
1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM.
2. Release shortin
g spring on air bag sensor assembly connector C21 (right connector). See RELEASING
NOTE: During testing, if DTCs other than DTC 63/B0130 are displayed, disregard them.
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SHORTING SPRING under DIAGNOSIS & TESTING. Measure resistance between Yellow/Black
wire (circuit PR+) and Yellow wire (circuit PR-) of air bag sensor assembly side of passenger-side seat
belt pretensioner squib harness connector. See WIRING DIAGRAMS
. If resistance is less than one
megohm, repair or replace harness or connector between seat belt pretensioner and air bag sensor
assembly. If resistance is more than one megohm, go to next step.
3. Reconnect air bag sensor assembly connector C21 to air bag sensor assembly. Connect negative battery
cable. Wait at least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds.
Clear DTCs. See CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK
position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds.
Retrieve DTCs. See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 63/B0130 is not
displayed, go to next step. If DTC 63/B0130 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect passenger-side seat belt pretensioner connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 63/B0130 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT . If DTC 63/B0130 is displayed, replace passenger-side seat belt
pretensioner.
DTC 64/B0131: OPEN IN PASSENGER-SIDE SEAT BELT PRETENSIONER SQUIB CIRCUIT
Description
The passenger-side seat belt pretensioner squib circuit consists of the air bag sensor assembly and passenger-
side seat belt pretensioner. The squib circuit causes the passenger-side seat belt pretensioner to deploy when
deployment conditions are satisfied.
Possible Causes
DTC 64/B0131 could be caused by an open in Yellow/Black (circuit PR+) or Yellow (circuit PR-) wires in
passenger-side seat belt pretensioner squib circuit, passenger-side seat belt pretensioner squib malfunction or air
bag sensor assembly malfunction.
Diagnostic Procedure
1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM.
2. Measure resistance between Yellow/Black wire (circuit PR+) and Yellow wire (circuit PR-) of air bag
sensor assembly side of passenger-side seat belt pretensioner squib harness connector. See WIRING
DIAGRAMS . If resistance is more than one ohm, repair or replace harness or connector between seat
belt pretensioner and air bag sensor assembly. If resistance is less than one ohm, go to next step.
3. Reconnect air bag sensor assembly connector C21 to air bag sensor assembly. Connect jumper wire NOTE: During testing, if DTCs other than DTC 64/B0131 are displayed, disregard them.
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between Yellow/Black wire (circuit PR+) and Yellow wire (circuit PR-) of air bag sensor assembly side
of passenger-side seat belt pretensioner squib harness connector. Connect negative battery cable. Wait at
least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 64/B0131 is not displayed, go to
next step. If DTC 64/B0131 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect passenger-side seat belt pretensioner connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 64/B0131 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT . If DTC 64/B0131 is displayed, replace passenger-side seat belt
pretensioner.
DTC 71/B0137: SHORT TO GROUND IN DRIVER-SIDE SEAT BELT PRETENSIONER SQUIB
CIRCUIT
Description
The driver-side seat belt pretensioner squib circuit consists of the air bag sensor assembly and driver-side seat
belt pretensioner. The squib circuit causes the driver-side seat belt pretensioner to deploy when deployment
conditions are satisfied.
Possible Causes
DTC 71/B0137 could be caused by a short to ground in Yellow/Black (circuit PL+) and Yellow (circuit PL-)
wires in driver-side seat belt pretensioner squib circuit, driver-side seat belt pretensioner squib malfunction or
air bag sensor assembly malfunction.
Diagnostic Procedure
1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM.
2. Measure resistance between ground and Yellow/Black wire (circuit PL+) of air bag sensor assembly side
of driver-side seat belt pretensioner squib harness connector. See WIRING DIAGRAMS
. If resistance
is less than one megohm, repair or replace harness or connector between seat belt pretensioner and air bag
sensor assembly. If resistance is more than one megohm, go to next step.
3. Reconnect air bag sensor assembly connector C19 to air bag sensor assembly. Connect jumper wire
between Yellow/Black wire (circuit PL+) and Yellow wire (circuit PL-) of air bag sensor assembly side
of driver-side seat belt pretensioner squib harness connector. Connect negative battery cable. Wait at least
2 seconds. Turn i
gnition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See NOTE: During testing, if DTCs other than DTC 71/B0137 are displayed, disregard them.
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CLEARING CODES under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 71/B0137 is not displayed, go to
next step. If DTC 71/B0137 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect driver-side seat belt pretensioner connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 71/B0137 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT . If DTC 71/B0137 is displayed, replace driver-side seat belt pretensioner.
DTC 72/B0138: SHORT TO BATTERY IN DRIVER-SIDE SEAT BELT PRETENSIONER SQUIB
CIRCUIT
Description
The driver-side seat belt pretensioner squib circuit consists of the air bag sensor assembly and driver-side seat
belt pretensioner. The squib circuit causes the driver-side seat belt pretensioner to deploy when deployment
conditions are satisfied.
Possible Causes
DTC 72/B0138 could be caused by a short to battery in Yellow/Black (circuit PL+) and Yellow (circuit PL-)
wires in driver-side seat belt pretensioner squib circuit, driver-side seat belt pretensioner squib malfunction or
air bag sensor assembly malfunction.
Diagnostic Procedure
1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM. Reconnect negative battery cable.
2. Measure voltage between ground and Yellow/Black wire (circuit PL+) of air bag sensor assembly side of
driver-side seat belt pretensioner squib harness connector. See WIRING DIAGRAMS
. If voltage is not
zero volt, repair or replace harness or connector between seat belt pretensioner and air bag sensor
assembly. If voltage is zero volt, go to next step.
3. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect air bag sensor assembly connector C19 to air bag sensor assembly. Connect jumper wire
between Yellow/Black wire (circuit PL+) and Yellow wire (circuit PL-) of air bag sensor assembly side
of driver-side seat belt pretensioner squib harness connector. Connect negative battery cable. Wait at least
2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 72/B0138 is not displayed, go to NOTE: During testing, if DTCs other than DTC 72/B0138 are displayed, disregard them.
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next step. If DTC 72/B0138 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect driver-side seat belt pretensioner connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs.
See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 72/B0138 is not displayed,
system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING
LIGHT INTERMITTENT . If DTC 72/B0138 is displayed, replace driver-side seat belt pretensioner.
DTC 73/B0135: SHORT IN DRIVER-SIDE SEAT BELT PRETENSIONER SQUIB CIRCUIT
Description
The driver-side seat belt pretensioner squib circuit consists of the air bag sensor assembly and driver-side seat
belt pretensioner. The squib circuit causes the driver-side seat belt pretensioner to deploy when deployment
conditions are satisfied.
Possible Causes
DTC 73/B0135 could be caused by a short between Yellow/Black (circuit PL+) and Yellow (circuit PL-) wires
in driver-side seat belt pretensioner squib circuit, driver-side seat belt pretensioner squib malfunction or air bag
sensor assembly malfunction.
Diagnostic Procedure
1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG
SYSTEM.
2. Release shorting spring on air bag sensor assembly connector C19. See RELEASING SHORTING
SPRING under DIAGNOSIS & TESTING. Measure resistance between Yellow/Black wire (circuit PL+)
and Yellow wire (circuit PL-) of air bag sensor assembly side of driver-side seat belt pretensioner squib
harness connector. See WIRING DIAGRAMS
. If resistance is less than one megohm, repair or replace
harness or connector between seat belt pretensioner and air bag sensor assembly. If resistance is more
than one megohm, go to next step.
3. Reconnect air bag sensor assembly connector C19 to air bag sensor assembly. Connect negative battery
cable. Wait at least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds.
Clear DTCs. See CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK
position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds.
Retrieve DTCs. See RETRIEVING CODES
under DIAGNOSIS & TESTING. If DTC 73/B0135 is not
displayed, go to next step. If DTC 73/B0135 is displayed, replace air bag sensor assembly.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Reconnect driver-side seat belt pretensioner connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See
CLEARING CODES
under DIAGNOSIS & TESTING. Turn ignition switch to LOCK position. Wait at NOTE: During testing, if DTCs other than DTC 73/B0135 are displayed, disregard them.
1999 Toyota RAV4
AIR BAG RESTRAINT SYSTEM 1999 Toyota
Microsoft
Sunday, November 22, 2009 10:33:23 AMPage 45 © 2005 Mitchell Repair Information Company, LLC.