Diagnostic trouble code table SUZUKI GRAND VITARA 1998 2.G Service Owner's Guide

YH4
GRAND
VITARA
AIR BAG SYSTEM 10B-15
DIAGNOSTIC TROUBLE CODE TABLE (Page 2 of 2)
DIAGNOSTIC TROUBLE CODEDIAGNOSISNO.MODEDIAGNOSIS
41Resistance high
42Driver
pretensionerResistance low
43circuit
(if equipped)Short to ground
44Short to power circuit
45Resistance highDiagnose trouble
di t ªDi
46Passenger
pretensionerResistance low
according to ªDiagnos-
tic Flow Tableº corre-
sponding to each code
47circuit
(if equipped)Short to ground
s onding to each code
No.
48Short to power circuit
51SDMFrontal crash detected
61ªAIR BAGº warning lamp circuit
71SDMInternal fault
NOTE:

When 2 or more codes are indicated, the lowest numbered code will appear first.

If a code not listed on the table is displayed, then the SDM is faulty.

Current DTC and history DTC can be identified by lighting and flashing of ªAIR BAGº warning lamp as
follows.
Current DTC is set.
(Abnormality exists at present.)History DTC is set only. (Faulty condi-
tion occurred once in the past but nor-
mal condition is restored at present.)
ªAIR BAGº warning lamp
after ignition switch ONRemains ON.Flashing 6 times and turns OFF.
ªAIR BAGº warning lamp
when grounding diagnosis
switch
Current DTC is displayed.History DTC is displayed.
However, if a multiple number of DTC's are set an even one of them is a current DTC, ªAIR BAGº warning
lamp remains on after ignition switch is turned ON. Therefore, it is not possible to identify any of them
as to whether it is a current one or a history one. (But use of scan tool (Tech 1) will make identification
possible.)

YH4
GRAND
VITARA
STEERING WHEEL1. Paper
AIR BAG SYSTEM 10B-25
CODE 15 ± PASSENGER AIR BAG INITIATOR CIRCUIT RESISTANCE HIGH (Page 2 of 2)
NOTE:
Before executing items in this table, be sure to perform ªAir Bag Diagnostic Check Flow Tableº.
STEP
ACTIONYESNO
11) With ignition switch OFF, disconnect
passenger air bag (inflator) module
connector behind the glove box.
2) Check proper connection to passenger air
bag (inflator) module at terminals in ªBº
connector.
3) If OK then connect Special Tool (B) to
passenger air bag (inflator) module
connector disconnected at the step 1).
4) With ignition switch ON, is DTC 15 current?Go to step 2.1) Ignition switch OFF.
2) Replace passenger
air bag (inflator)
module.
21) With ignition switch OFF, disconnect SDM.
2) Check proper connection to SDM at
terminals ªA2º and ªA3º.
3) Release shorting bar in SDM connector by
inserting a piece of paper, referring to the
figure below.
4) If OK then measure resistance between ªA2º
and ªA3º terminals with connected Special
Tool (B).
5) Is resistance 2.9
or less?Substitute a known-
good SDM and recheck.Repair high resistance
or open in ªYº or ªY/Rº
wire circuit.
Fig. for STEP 1 and 2 Fig. for STEP 2
Special Tool
(A): 09932-76010
(B): 09932-75010
NOTE:
Upon completion of inspection and repair work, perform following items.
1) Reconnect all air bag system components, ensure all components are properly mounted.
2) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.

YH4
GRAND
VITARA
STEERING WHEEL1. Paper
AIR BAG SYSTEM 10B-27
CODE 16 ± PASSENGER AIR BAG INITIATOR CIRCUIT RESISTANCE LOW (Page 2 of 2)
NOTE:
Before executing items in this table, be sure to perform ªAir Bag Diagnostic Check Flow Tableº.
STEP
ACTIONYESNO
11) With ignition switch OFF, disconnect
passenger air bag (inflator) module
connector behind the glove box.
2) Check proper connection to passenger
air bag (inflator) module at terminals in ªBº
connector.
3) If OK then connect Special Tool (B) to
passenger air bag (inflator) module
connector disconnected at the step 1).
4) With ignition switch ON, is DTC 16
current?Go to step 2.1) Ignition switch OFF.
2) Replace passenger air
bag (inflator) module.
21) With ignition switch OFF, disconnect
SDM.
2) Check proper connection to SDM at
terminals ªA2º and ªA3º.
3) Release shorting bar in SDM connector
by inserting a piece of paper, referring to
the figure below.
4) If OK then measure resistance between
ªA2º and ªA3º terminals with connected
Special Tool (B).
5) Is resistance 1.7
or more?Substitute a known-
good SDM and recheck.Repair short from ªYº wire
circuit to ªY/Rº wire circuit or
from ªYº or ªY/Rº wire circuit
to other wire circuit.
Fig. for STEP 1 and 2 Fig. for STEP 2
Special Tool
(A): 09932-76010
(B): 09932-75010
NOTE:
Upon completion of inspection and repair work, perform following items.
1) Reconnect all air bag system components, ensure all components are properly mounted.
2) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.

YH4
GRAND
VITARA
(A)STEERING WHEEL
AIR BAG SYSTEM 10B-29
CODE 18 ± PASSENGER AIR BAG INITIATOR CIRCUIT SHORT TO GROUND (Page 2 of 2)
NOTE:
Before executing items in this table, be sure to perform ªAir Bag Diagnostic Check Flow Tableº.
STEP
ACTIONYESNO
11) With ignition switch OFF, disconnect
passenger air bag (inflator) module
connector behind the glove box.
2) Check proper connection to passenger
air bag (inflator) module at terminals in ªBº
connector.
3) If OK then connect Special Tool (B) to
passenger air bag (inflator) module
connector disconnected at the step 1).
4) With ignition switch ON, is DTC 18
current?Go to step 2.1) Ignition switch OFF.
2) Replace passenger air
bag (inflator) module.
21) With ignition switch OFF, disconnect
Special Tool (B) and SDM.
2) Measure resistance between ªA2º and
ªA10º terminals.
3) Is resistance 1 k
or more?Substitute a known-good
SDM and recheck.Repair short from ªYº or
ªY/Rº wire circuit to ground.
Fig. for STEP 1 and 2 Fig. for STEP 2
Special Tool
(A): 09932-76010
(B): 09932-75010
NOTE:
Upon completion of inspection and repair work, perform following items.
1) Reconnect all air bag system components, ensure all components are properly mounted.
2) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.

YH4
GRAND
VITARA
(A)STEERING WHEEL
AIR BAG SYSTEM 10B-31
CODE 19 ± PASSENGER AIR BAG INITIATOR CIRCUIT SHORT TO POWER CIRCUIT
(Page 2 of 2)
NOTE:
Before executing items in this table, be sure to perform ªAir Bag Diagnostic Check Flow Tableº.
STEP
ACTIONYESNO
11) With ignition switch OFF, disconnect
passenger air bag (inflator) module
connector behind the glove box.
2) Check proper connection to passenger
air bag (inflator) module at terminals in ªBº
connector.
3) If OK then connect Special Tool (B) to
passenger air bag (inflator) module
connector disconnected at the step 1).
4) With ignition switch ON, is DTC 19
current?Go to step 2.1) Ignition switch OFF.
2) Replace passenger air
bag (inflator) module.
21) With ignition switch OFF, disconnect
Special Tool (B) and SDM.
2) Measure voltage from ªA3º terminal to
body ground.
3) With ignition switch ON, is voltage 1 V or
less?Substitute a known-good
SDM and recheck.Repair short from ªYº or
ªY/Rº wire circuit to power
circuit.
Fig. for STEP 1 and 2 Fig. for STEP 2
Special Tool
(A): 09932-76010
(B): 09932-75010
NOTE:
Upon completion of inspection and repair work, perform following items.
1) Reconnect all air bag system components, ensure all components are properly mounted.
2) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.

YH4
GRAND
VITARA
AIR BAG SYSTEM 10B-33
BASE OF COLUMN1. Paper
STEERING
WHEEL
CODE 21 ± DRIVER AIR BAG INITIATOR CIRCUIT RESISTANCE HIGH (Page 2 of 2)
STEPACTIONYESNO
31) With ignition switch OFF, disconnect Special
Tool (B) then reconnect contact coil connector
located near the base of the steering column.
2) Remove driver air bag (inflator) module from
steering wheel (Refer to SECTION 3C1).
3) Check proper connection to driver air bag
(inflator) module at terminals in ªDº connector.
4) If OK then connect Special Tool (B) to driver
air bag (inflator) module disconnected at step 2).
5) With ignition switch ON, is DTC 21 current?1) Ignition switch OFF.
2) Replace contact coil
assembly (Refer to
SECTION 3C1).1) Ignition switch OFF.
2) Replace driver air
bag (inflator)
module (Refer to
SECTION 3C1).
Fig. for STEP 1 and 2 Fig. for STEP 2
Fig. for STEP 3
Special Tool
(A): 09932-76010
(B): 09932-75010
NOTE:
Upon completion of inspection and repair work, perform following items.
1) Reconnect all air bag system components, ensure all components are properly mounted.
2) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.

YH4
GRAND
VITARA
AIR BAG SYSTEM 10B-35
BASE OF COLUMN1. Paper
STEERING
WHEEL
CODE 22 ± DRIVER AIR BAG INITIATOR CIRCUIT RESISTANCE LOW (Page 2 of 2)
STEPACTIONYESNO
31) With ignition switch OFF, disconnect Special
Tool (B) then reconnect contact coil connector
located near the base of the steering column.
2) Remove driver air bag (inflator) module from
steering wheel (Refer to SECTION 3C1).
3) Check proper connection to driver air bag
(inflator) module at terminals in ªDº connector.
4) If OK then connect Special Tool (B) to driver air
bag (inflator) module disconnected at step 2).
5) With ignition switch ON, is DTC 22 current?1) Ignition switch OFF.
2) Replace contact coil
assembly (Refer to
SECTION 3C1).1) Ignition switch OFF.
2) Replace driver air
bag (inflator)
module (Refer to
SECTION 3C1).
Fig. for STEP 1 and 2 Fig. for STEP 2
Fig. for STEP 3
Special Tool
(A): 09932-76010
(B): 09932-75010
NOTE:
Upon completion of inspection and repair work, perform following items.
1) Reconnect all air bag system components, ensure all components are properly mounted.
2) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.

YH4
GRAND
VITARA
AIR BAG SYSTEM 10B-37
(A)BASE OF COLUMN
STEERING
WHEEL
CODE 24 ±DRIVER AIR BAG INITIATOR CIRCUIT SHORT TO GROUND (Page 2 of 2)
STEPACTIONYESNO
31) With ignition switch OFF, disconnect Special
Tool (B) then reconnect contact coil connec-
tor located near the base of the steering
column.
2) Remove driver air bag (inflator) module from
steering wheel (Refer to SECTION 3C1).
3) Check proper connection to driver air bag
(inflator) module at terminals in ªDº
connector.
4) If OK then connect Special Tool (B) to driver
air bag (inflator) module disconnected at
step 2).
5) With ignition switch ON, is DTC 24 current?1) Ignition switch OFF.
2) Replace contact coil
assembly (Refer to
SECTION 3C1).1) Ignition switch OFF.
2) Replace driver air bag
(inflator) module
(Refer to SECTION
3C1).
Fig. for STEP 1 and 2 Fig. for STEP 2
Fig. for STEP 3
Special Tool
(A): 09932-76010
(B): 09932-75010
NOTE:
Upon completion of inspection and repair work, perform following items.
1) Reconnect all air bag system components, ensure all components are properly mounted.
2) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.

YH4
GRAND
VITARA
AIR BAG SYSTEM 10B-39
(A)
STEERING
WHEELBASE OF COLUMN
CODE 25 ± DRIVER AIR BAG INITIATOR CIRCUIT SHORT TO POWER CIRCUIT (Page 2 of 2)
STEPACTIONYESNO
31) With ignition switch OFF, disconnect Special
Tool (B) then reconnect contact coil connector
located near the base of the steering column.
2) Remove driver air bag (inflator) module from
steering wheel (Refer to SECTION 3C1).
3) Check proper connection to driver air bag
(inflator) module at terminals in ªDº connector.
4) If OK then connect Special Tool (B) to driver
air bag (inflator) module disconnected at
step 2).
5) With ignition switch ON, is DTC 25 current?1) Ignition switch OFF.
2) Replace contact coil
assembly (Refer to
SECTION 3C1).1) Ignition switch OFF.
2) Replace driver air bag
(inflator) module
(Refer to SECTION
3C1).
Fig. for STEP 1 and 2 Fig. for STEP 2
Fig. for STEP 3
Special Tool
(A): 09932-76010
(B): 09932-75010
NOTE:
Upon completion of inspection and repair work, perform following items.
1) Reconnect all air bag system components, ensure all components are properly mounted.
2) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.

YH4
GRAND
VITARA
(A)
AIR BAG SYSTEM 10B-41
CODE 31 ± POWER SOURCE VOLTAGE HIGH (Page 2 of 2)
NOTE:
Before executing items in this table, be sure to perform ªAir Bag Diagnostic Check Flow Tableº.
STEP
ACTIONYESNO
11) With ignition switch OFF, disconnect SDM.
2) Check proper connection to SDM at
ªA16º terminal.
3) If OK then ignition switch ON, and then check
voltage from ªA16º terminal on SDM harness
connector to body ground.
4) Is voltage 14 V or less?Go to step 2.Check Charging System
and repair as necessary.
(Refer to SECTION 6H
ªChanging Systemº)
21) With ignition switch OFF, reconnect SDM
2) With ignition switch ON, is DTC 31 current?Substitute a known-
good SDM and recheck.Check Charging System
and repair as necessary.
(Refer to SECTION 6H
ªChanging Systemº)
Fig. for STEP 1
Special Tool
(A): 09932-76010
NOTE:
Upon completion of inspection and repair work, perform following items.
1) Reconnect all air bag system components, ensure all components are properly mounted.
2) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.