TOYOTA RAV4 1996 Service Workshop Manual

CLEARING CODES
1. At DLC, connect a jumper wire to terminal Tc, and another jumper wire to terminal AB. See Fig. 12
.
Turn ignition switch to ACC or ON position. Wait about 6 seconds.
2. Starting with terminal Tc, apply body ground alternately to terminal Tc and terminal AB twice each, in
cycles of 1/2 to 1 1/2 seconds. Finally, keep applying body ground to terminal Tc until air bag warning
light flashes quickly, indicating codes are cleared.
DIAGNOSIS
AIR BAG WARNING LIGHT DOES NOT COME ON AT ALL
11Short To Ground In Squib Circuit
12Short To Battery In Squib Circuit
14Open In D Squib Circuit
31Air Bag Sensor Assembly Malfunction
54Open In P Squib Circuit
NOTE: When alternately connecting jumper probes to terminals, simultaneously
release one probe from one terminal while connecting other probe to other
terminal. If time interval between probings is too long, codes will not clear.
WARNING:Failure to follow air bag service precautions may result in air bag
deployment and personal injury. See SERVICE PRECAUTIONS
. After
component replacement, perform system operational check to ensure
proper system operation. See SYSTEM OPERATION CHECK
.
CAUTION: Ensure ignition switch is in LOCK position before disconnecting or
connecting negative battery cable. If ignition switch is in ACC or ON
position when negative battery cable is disconnected or connected, center
air bag sensor may be damaged.
NOTE: For air bag sensor connector terminal identification, see Fig. 13
.

1996 Toyota 4Runner
AIR BAG RESTRAINT SYSTEM 1996 ACCESSORIES/SAFETY EQUIPMENT Toyota Air Bag Restraint System
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Fig. 13: Identifying Air Bag Sensor Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
1. Remove SRS fuse. Check fuse for continuity. If fuse is okay go to next step. If fuse is not okay, replace
fuse and go to step 5).
2. Disconnect negative battery cable. Wait at least 90 seconds. Remove steering wheel pad. See
STEERING WHEEL PAD & SPIRAL CABLE
under REMOVAL & INSTALLATION. Disconnect
passenger-side air bag harness connector. See Fig. 2
.
3. Connect negative battery cable. Turn ignition to ACC or ON. Measure voltage from ground to terminal
LA of harness side connector of air bag sensor assembly. If battery voltage is present, go to next step. If
battery voltage is not present, check warning light bulb or repair SRS warning light circuit.
4. Disconnect negative battery cable. Reconnect air bag sensor connector. Reconnect negative battery cable.
Wait 2 seconds. Turn i
gnition switch to ACC or ON position. Check operation of SRS warning light. If

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AIR BAG RESTRAINT SYSTEM 1996 ACCESSORIES/SAFETY EQUIPMENT Toyota Air Bag Restraint System
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light is okay, the malfunction is now corrected. If light is not okay, check terminal LA of air bag sensor
assembly. If terminal is okay, replace air bag sensor assembly.
5. If new fuse burns out again, check harness between SRS fuse and SRS warning light. If fuse is not burned
out check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT
under
DIAGNOSIS.
AIR BAG WARNING LIGHT STAYS ON WITH IGNITION OFF
Disable SRS. See DISABLING & ACTIVATING AIR BAG SYSTEM
. Disconnect air bag sensor connector
(s). Reconnect negative battery cable. If air bag warning light is off, replace air bag sensor. If air bag warning
light is still on, repair warning light circuit or AB circuit leading to DLC. See Fig. 12
.
AIR BAG WARNING LIGHT INTERMITTENT
If air bag warning light comes on intermittently, perform the following tests to simulate driving conditions:
Wiggle-test wiring harness.
Using a hair dryer, apply heat to components.
Spray water onto entire vehicle (not directly onto electrical components) to simulate humidity.
If problem cannot be found, replace all components including wiring harness.
CODE(S) NOT DISPLAYED
1. Turn ignition switch from LOCK to ACC or ON position. If air bag warning light does not come on,
repair air bag warning light circuit. If air bag warning light comes on, go to next step.
2. Turn ignition to ACC or ON. Measure voltage between terminals Tc and E1 of DLC. See Fig. 12
. If
battery voltage is present, go to step 4). If battery voltage is not present go to next step.
3. Measure voltage between body ground and terminal Tc of DLC. If battery voltage is present, repair
harness between body ground and terminal E1 of DLC. If battery voltage is not present, go to next step.
4. Turn ignition to LOCK. Disconnect negative battery cable. wait at least 90 seconds. Disconnect air bag
sensor assembly connector. Connect a jumper wire between body ground and terminal Tc from back side.
See Fig. 13
. If air bag warning light does not come on, replace air bag sensor. If air bag warning light
comes on, check wiring harness between air bag sensor and DLC.
CODE(S) CONTINUOUSLY DISPLAYED
Disable SRS. See DISABLING & ACTIVATING AIR BAG SYSTEM
. Disconnect air bag sensor connector
NOTE: Use the following procedure if code(s) are not displayed or air bag warning light
stays on when jumper wire is connected between terminals Tc and E1 of DLC
connector.
NOTE: Use the following procedure if code(s) are displayed without connecting jumper
wire between terminals Tc and E1 of DLC connector.

1996 Toyota 4Runner
AIR BAG RESTRAINT SYSTEM 1996 ACCESSORIES/SAFETY EQUIPMENT Toyota Air Bag Restraint System
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(s). Measure resistance between body ground and terminal 7 (Tc) of the air bag sensor connector. See Fig. 13.
If resistance is 1000 ohms or more, replace air bag sensor. If resistance is not infinite ohms, replace harness.
CONNECTOR IDENTIFICATION
Fig. 14: Identifying Spiral Cable (Upper) To Passenger
-Side Air Bag Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
RELEASING SHORTING BAR SPRING (ACTIVATION PREVENTION) NOTE: To identify connector terminals, See Fig. 14
.

1996 Toyota 4Runner
AIR BAG RESTRAINT SYSTEM 1996 ACCESSORIES/SAFETY EQUIPMENT Toyota Air Bag Restraint System
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Tuesday, August 18, 2009 7:33:32 PMPage 20 © 2005 Mitchell Repair Information Company, LLC.

1. If voltage is accidentally applied across the air bag squib circuit (as when testing, for example), the air
bag may deploy. To prevent this, a spring-loaded shorting bar automatically connects both wires of the
squib circuit when the squib circuit connector is disconnected.
2. Some testing procedures require the shorting bar to be in the released position with the connector
disconnected. To hold shorting bar in the released position, obtain a piece of paper that is the same
thickness as the male terminal blade that slides under the shorting bar spring when the connector is
connected. See Fig. 15
.
Fig. 15: Releasing Shorting Bar Spring

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NOTE: In the following procedure, "squib circuit connector" refers to any SRS
connector that has a shorting bar on it. Perform this procedure only if you were
sent here from TROUBLE SHOOTING.

1996 Toyota 4Runner
AIR BAG RESTRAINT SYSTEM 1996 ACCESSORIES/SAFETY EQUIPMENT Toyota Air Bag Restraint System
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3. With squib circuit connector disconnected, insert paper into female terminal, sliding it under shorting bar
spring. This lifts the spring, breaking the circuit and allowing the test procedure to be performed as
specified.
TESTING - DIAGNOSTIC
NO CODES - SOURCE VOLTAGE DROP
1. Disconnect negative battery cable. Wait at least 90 seconds. Remove steering wheel pad. See
STEERING WHEEL PAD & SPIRAL CABLE
under REMOVAL & INSTALLATION. Disconnect
passenger-side air bag harness connector, accessible through finish plate in glove box. See Fig. 2
.
Disconnect air bag sensor assembly connector.
2. Reconnect negative battery cable. Turn ignition switch to ON position. Measure voltage between ground
and terminals IG2 and ACC of air bag sensor connector. See Fig. 13
. Operate electrical components
(defogger, wiper, headlights, heater blower, etc.). If voltage is 8-14 volts, go to next step. If voltage is not
8-14 volts, check harness between battery and air bag sensor assembly and check battery and charging
system.
3. Turn ignition switch to LOCK position. Connect steering wheel pad connector. Connect passenger-side
air bag connector. Turn ignition switch to ON position. Operate electrical components as in step 2) and
check that SRS warning light goes off. If light does not go off, check diagnostic trouble code and go to
appropriate CODE under TESTING - DIAGNOSTIC. If a normal code is output, replace air bag sensor
assembly. If warning light goes off, no problem detected at this time.
CODE 11
1. Disconnect negative battery cable. Wait at least 90 seconds. Remove steering wheel pad. See
STEERING WHEEL PAD & SPIRAL CABLE
under REMOVAL & INSTALLATION. Disconnect
passenger-side air bag harness connector, accessible through finish plate in glove box. See Fig. 2
.
Disconnect air bag sensor assembly connector.
2. Measure resistance on spiral cable side of connector between spiral cable and steering wheel pad between
D+, D- and ground. If resistance is 1000 ohms or more, go to next step. If resistance is less than 1000
ohms, go to step 7).
3. Measure resistance on air ba
g sensor assembly side of connector between air bag sensor and passenger- WARNING:Paper must not be thicker than male terminal. If paper is thicker,
connector terminal may be damaged, possible resulting in system
fault.
NOTE: Use Diagnosis Check Wiring (09843-18020) when connecting jumper wire
between terminals of DLC. Spiral cable upper connector is same as steering
wheel pad (squib) connector. Spiral cable lower connector (located under
steering column) connects the harness between spiral cable and center air bag
sensor.
NOTE: During testing, if codes other than Code 11 are displayed, disregard them.

1996 Toyota 4Runner
AIR BAG RESTRAINT SYSTEM 1996 ACCESSORIES/SAFETY EQUIPMENT Toyota Air Bag Restraint System
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Tuesday, August 18, 2009 7:33:32 PMPage 22 © 2005 Mitchell Repair Information Company, LLC.

side air bag assembly between P+, P- and ground. If resistance is 1000 ohms or more, go to next step. If
resistance is less than 1000 ohms, replace harness or connector between air bag sensor assembly and
passenger-side air bag assembly.
4. Connect connector to air bag sensor assembly. Use a jumper wire to connect D+ and D- on spiral cable
side of connector between spiral cable and steering wheel pad. Use a jumper to connect P+ and P- on air
bag sensor assembly side of connector between air bag sensor assembly and passenger-side air bag
assembly. Connect negative battery cable and wait 2 seconds. Turn ignition switch to ACC or ON
position and wait at least 20 seconds. Clear malfunction codes. Turn ignition switch to LOCK position.
Wait 20 seconds. Turn ignition switch to ACC or ON position and wait at least 20 seconds. Using
Diagnosis Wire (09843-18020), connect terminals Tc and E1 of DLC1. If DTC 11 is output, go to next
step. If DTC 11 is not output, Replace air bag sensor assembly.
5. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait 90 seconds. Connect
steering wheel pad connector. Connect negative battery cable. Wait 2 seconds. Turn ignition switch to
ACC or ON position. Wait 20 seconds. Clear malfunction codes. Turn ignition switch to LOCK position.
Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Use
Diagnosis Wire (09843-18020), connect terminals Tc and E1 of DLC1. If DTC 11 is output, replace
steering wheel pad. If DTC 11 is output, go to next step.
6. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Connect passenger-side air bag assembly connector. Connect negative battery cable. Wait at least 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear malfunction codes.
Turn ignition switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON
position. Wait at least 20 seconds. Use Diagnosis Wire (09843-18020) to connect terminals Tc and E1 of
DLC1. If DTC 11 is output, replace passenger-side air bag assembly. If DTC 11 is not output, go to next
step.
7. Disconnect connector between air bag sensor assembly and spiral cable. Measure resistance between D+
on spiral cable side of connector between spiral cable and steering wheel pad and body ground. If
resistance is 1000 ohms or more, replace harness or connector between air bag sensor assembly and spiral
cable. If resistance is less than 1000 ohms, replace spiral cable.
CODE 12
1. Disconnect negative battery cable. Wait at least 90 seconds. Remove steering wheel pad. See
STEERING WHEEL PAD & SPIRAL CABLE
under REMOVAL & INSTALLATION. Disconnect
passenger-side air bag connector, accessible through finish plate inside glove box. See Fig. 2
. Disconnect
air bag sensor assembly connector
2. Check voltage between ground, D+ and D- of connector (spiral cable side) between spiral cable and
steering wheel pad. If voltage is zero volts, go to next step. If voltage is not zero volts, go to step 7).
3. Check voltage between P+, P- and ground of connector (air bag sensor assembly side) between air bag
sensor assembly and passenger-side air bag assembly. If voltage is zero volts, go to next step. If voltage is
not zero volts, replace harness or connector between air bag sensor assembly and passenger-side air bag
assembly.
4. Connect connector to air bag sensor assembly. Use jumper wire to connect D+ and D- on spiral cable side
of connector between spiral cable and steering wheel pad. Use a jumper wire to connect P+ and P- on air NOTE: During testing, if codes other than Code 12 are displayed, disregard them.

1996 Toyota 4Runner
AIR BAG RESTRAINT SYSTEM 1996 ACCESSORIES/SAFETY EQUIPMENT Toyota Air Bag Restraint System
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Tuesday, August 18, 2009 7:33:32 PMPage 23 © 2005 Mitchell Repair Information Company, LLC.

bag sensor assembly side of connector between airbag sensor assembly and passenger-side air bag
assembly. Connect negative battery cable. Wait 2 seconds. Turn ignition switch to ACC or ON position.
Wait at least 20 seconds. Clear malfunction codes. Turn ignition switch to LOCK position. Wait at least
20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Using Diagnosis Wire
(09843-18020) connect terminals Tc and E1 of DLC1. If DTC 12 is output, replace air bag sensor
assembly. If DTC 12 is output, go to next step.
5. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait 90 seconds. Connect
steering wheel pad connector. Connect negative battery cable. Wait 2 seconds. Turn ignition to ACC or
On. Wait at least 20 seconds. Clear malfunction codes. Turn ignition switch to LOCK position. Wait at
least 20 seconds. Turn ignition to ACC or On. Wait at least 20 seconds. Using Diagnosis Wire (09843-
18020) connect terminals Tc and E1 of DLC1. If DTC 12 is output, replace passenger-side air bag. If
DTC 12 is not output, go to next step.
6. Turn ignition switch to LOCK position. Disconnect connector between air bag sensor assembly and spiral
cable. Turn ignition ON. Measure voltage between D+ terminal on spiral cable side of connector between
spiral cable and steering wheel pad. If voltage is zero volts, replace harness or connector between air bag
sensor assembly and spiral cable. If voltage is not zero volts, replace spiral cable.
CODE 14
1. Disconnect negative battery cable. Wait at least 90 seconds. Remove steering wheel pad. See
STEERING WHEEL PAD & SPIRAL CABLE
under REMOVAL & INSTALLATION. Disconnect
passenger-side air bag connector, accessible through finish plate inside glove box. See Fig. 2
. Disconnect
air bag sensor assembly connector.
2. Use a jumper wire to connect D+ and D- on air bag sensor assembly connector. Measure resistance
between D+ and D-. If resistance is less than one ohm, go to next step. If resistance is more than one ohm,
go to step 5).
3. Connect connector to air bag sensor assembly. Using a jumper wire, connect D+ and D- on spiral cable
side of connector between spiral cable and steering wheel pad. Connect negative battery cable. Wait 2
seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear malfunction codes.
Turn ignition switch to LOCK position. Wait at least 20 seconds. Using Diagnosis Wire (09843-18020),
connect terminals Tc and E1 of DLC1. If DTC 14 is output, replace air bag sensor assembly. If DTC 14 is
not output, go to next step.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Connect steering wheel pad (squib) connector. Connect negative battery cable. Wait 2 seconds. Turn
ignition switch to ACC or ON position. Wait at least 20 seconds. Clear malfunction codes. Turn ignition
switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at
least 20 seconds. Using Diagnosis Wire (09843-18020), connect terminals Tc and E1 of DLC1. If DTC
14 is output, replace steering wheel pad. If DTC 14 is not output, no problem is detected at this time..
5. Disconnect connector between air bag sensor assembly and spiral cable. Measure resistance between
terminals D+ and D- on spiral cable side of connector between spiral cable and steering wheel pad. If
resistance is less than one ohm, go to next step. If resistance is more than one ohm, replace spiral cable.
6. Use a jumper wire to connect D+ and D- on air bag sensor assembly connector. Measure resistance
between D+ and D- on air bag side of connector between air bag sensor assembly and spiral cable. If NOTE: During testing, if codes other than Code 14 are displayed, disregard them.

1996 Toyota 4Runner
AIR BAG RESTRAINT SYSTEM 1996 ACCESSORIES/SAFETY EQUIPMENT Toyota Air Bag Restraint System
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Tuesday, August 18, 2009 7:33:32 PMPage 24 © 2005 Mitchell Repair Information Company, LLC.

resistance is less than one ohm, no problem detected at this time. If resistance is more than one ohm,
replace harness or connector between air bag sensor and spiral cable.
CODE 31
1. Disconnect negative battery cable. Wait at least 90 seconds. Remove steering wheel pad. See
STEERING WHEEL PAD & SPIRAL CABLE
under REMOVAL & INSTALLATION. Disconnect
passenger-side air bag connector, accessible through finish plate inside glove box. See Fig. 2
. Disconnect
air bag sensor assembly connector.
2. Turn ignition switch to ON position. Measure voltage between terminals IG2 and ACC of air bag sensor
assembly and ground. If voltage is less than 16 Volts, go to next step. If voltage is more than 16 volts,
check battery and charging system.
3. Clear malfunction code. 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 these steps at least 5 times. Using
Diagnosis Wire (09843-18020), connect terminals Tc and E1 of DLC1. Check DTC. If CODE 31 is
output, replace air bag sensor assembly. If CODE 31 is not output, check for intermittent fault. See AIR
BAG WARNING LIGHT INTERMITTENT under DIAGNOSIS.
CODE 54
1. Disconnect negative battery cable. Wait at least 90 seconds. Remove steering wheel pad. See
STEERING WHEEL PAD & SPIRAL CABLE
under REMOVAL & INSTALLATION. Disconnect
passenger-side air bag connector, accessible through finish plate inside glove box. See Fig. 2
. Disconnect
air bag sensor assembly connector.
2. Using a jumper wire, connect P+ and P- of air bag sensor connector. Measure resistance between
terminals of passenger-side air bag connector. If resistance is less than one ohm, go to next step. If
resistance is more than one ohm, replace harness or connector between air bag sensor assembly and
passenger-side air bag assembly.
3. Connect connector to center air bag sensor assembly. Using a jumper wire, connect P+ and P- terminals
(on center air bag sensor assembly side of connector between center air bag sensor assembly) and
passenger-side air bag assembly. Connect negative battery cable and wait 20 seconds. Turn ignition
switch to ACC or ON position. Wait at least 20 seconds. Clear malfunction codes. Turn ignition switch to
LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait for at least
20 seconds. Using Diagnosis Wire (09843-18020), check for DTC 54. If DTC 54 is output, replace air
bag sensor assembly. If DTC 54 is not output, go to next step.
4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds.
Connect passenger-side air bag assembly connector. Connect negative battery cable. Wait 2 seconds.
Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear malfunction codes. Turn
ignition switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position.
Wait at least 20 seconds. Using Diagnosis Wire (09843-18020), check for DTC 54. If DTC 54 is output,
replace passen
ger-side air bag assembly. If DTC 54 is not output, the malfunction is now normal. NOTE: During testing, if codes other than Code 14 are displayed, disregard them.
NOTE: During testing, if codes other than Code 54 are displayed, disregard them.

1996 Toyota 4Runner
AIR BAG RESTRAINT SYSTEM 1996 ACCESSORIES/SAFETY EQUIPMENT Toyota Air Bag Restraint System
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Tuesday, August 18, 2009 7:33:32 PMPage 25 © 2005 Mitchell Repair Information Company, LLC.

AIR BAG SENSOR CONNECTOR TERMINAL IDENTIFICATION
POST-COLLISION AIR BAG SAFETY INSPECTION
POST-COLLISION AIR BAG SAFETY INSPECTION
WIRE REPAIR
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS
TerminalCircuit
"A" (L1)Shorting Bar
"B" (L2)Shorting Bar
1 (P-)Squib "-" Passenger-Side
2 (P+)Squib "+" Passenger-Side
3 (D+)Squib "+" Driver-Side
4 (D-)Squib "-" Driver-Side
5 (E1)Ground
6 (E2)Ground
7 (Tc)Diagnosis
8 (LA)Air Bag Warning Light
9 (IG2)Power Source (IGN Fuse)
10 (ACC)Power Source (CIG Fuse)
ActionComponents
Replace After DeploymentAir Bag Module(s), Air Bag Sensor Assembly
Inspect & If Damaged, Replace Component (Even
If Air Bag Did Not Deploy)Glove Compartment Door, Instrument Panel,
Instrument Panel Reinforcement, Spiral Cable
Steering Wheel, Wiring Harness & Connectors
CommentsIf any components are damaged or bent, they must
be replaced.
WARNING:No part of the SRS system or harnesses can be repaired. If wiring harness
is damaged, replace complete wiring harness assembly.
ApplicationFt. Lbs. (N.m)
Air Bag Sensor Screw15 (21)
Instrument Panel Reinforcement14 (19)
Passenger-Side Air Bag Bolt15 (21)
Steering Wheel Nut26 (35)
INCH Lbs. (N.m)
Steering Wheel Pad Torx Screw80 (9)

1996 Toyota 4Runner
AIR BAG RESTRAINT SYSTEM 1996 ACCESSORIES/SAFETY EQUIPMENT Toyota Air Bag Restraint System
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Tuesday, August 18, 2009 7:33:32 PMPage 26 © 2005 Mitchell Repair Information Company, LLC.