Suzuki Grand Vitara JB627. Manual — part 315

8B-86 Air Bag System:

DTC Troubleshooting

Step

Action

Yes

No

1

1) With ignition switch OFF, remove rear side upper trim of

left or right side and disconnect side curtain-air bag
(inflator) module connector.

2) Check proper connection to side curtain-air bag (inflator)

module at terminals in “G18” or “G41” connector.

3) If OK, then connect special tools (A), (B) and (C) to side

curtain-air bag (inflator) module connector.

Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310

4) Check SDM DTC.

With ignition switch ON, is DTC B1331 or B1335 still
indicated?

Go to Step 2.

Replace side curtain-air
bag (inflator) module
referring to “Side
Curtain-Air Bag
(Inflator) Module
Removal and
Installation”.

STEERING WHEEL

(B)

(C)

(A)

“G18”, “G41”

I5JB0A820057-01

Air Bag System: 8B-87

NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components, ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

2

1) With ignition switch OFF, disconnect SDM connector

“L32”.

2) Check proper connection to SDM at terminals “L32-1”

and “L32-2” or “L32-3” and “L32-4”.

3) If OK, release shorting bar in SDM connector inserting

release tool (1) included in special tool (A).

4) Measure resistance between “L32-1” and “L32-2”

terminals (for DTC B1331) or “L32-3” and “L32-4”
terminals (for DTC B1335) with connected special tools
(A), (B) and (C).

Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310

Is resistance 5.5

Ω

or less?

Substitute a known-
good SDM and recheck.

DTC B1331: Repair
high resistance or open
in “YEL/GRN” or “YEL/
BLU” wire circuit.
DTC B1335: Repair
high resistance or open
in “BLK/YEL” or “BRN/
YEL” wire circuit.

Step

Action

Yes

No

STEERING WHEEL

(B)

(C)

(A)

“G18”, “G41”

“L32-1”

“L32-2”

“L32-3”

1, (A)

“L32-4”

(A)

I5JB0A820058-01

8B-88 Air Bag System:

DTC B1332 / B1336: Left / Right Side Curtain-Air Bag Initiator Circuit Resistance Low

S6JB0B8204037

Wiring Diagram
Refer to “DTC B1331 / B1335: Left / Right Side Curtain-Air Bag Initiator Circuit Resistance High”.

CAUTION

!

Be sure to observe instructions under CAUTION in “Air Bag Diagnostic System Check Flow”.

DTC Will Set when
The combined resistance of the side curtain-air bag (inflator) module (left or right), harness wiring and connector
terminal contact is below a specified value for specified time.

Flow Test Description
Step 1: Check whether malfunction is in side curtain-air bag (inflator) module.
Step 2: Check side curtain-air bag initiator circuit.

DTC Troubleshooting

Step

Action

Yes

No

1

1) With ignition switch OFF, remove rear side upper trim of

left or right side and disconnect side curtain-air bag
(inflator) module connector.

2) Check proper connection to side curtain-air bag (inflator)

module at terminals in “G18” or “G41” connector.

3) If OK, then connect special tools (A), (B) and (C) to side

curtain-air bag (inflator) module connector.

Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310

4) Check SDM DTC.

With ignition switch ON, is DTC B1332 or B1336 still
indicated?

Go to Step 2.

Replace side curtain-air
bag (inflator) module
referring to “Side
Curtain-Air Bag
(Inflator) Module
Removal and
Installation”.

STEERING WHEEL

(B)

(C)

(A)

“G18”, “G41”

I5JB0A820057-01

Air Bag System: 8B-89

NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components, ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

2

1) With ignition switch OFF, disconnect SDM connector

“L32”.

2) Check proper connection to SDM at terminals “L32-1”

and “L32-2” or “L32-3” and “L32-4”.

3) If OK, release shorting bar in SDM connector inserting

release tool (1) included in special tool (A).

4) Measure resistance between “L32-1” and “L32-2”

terminals (for DTC B1332) or “L32-3” and “L32-4”
terminals (for DTC B1336) with connected special tools
(A), (B) and (C).

Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310

Is resistance 0.65

Ω

or more?

Substitute a known-
good SDM and recheck.

DTC B1332: Repair
short from “YEL/GRN”
wire circuit to “YEL/
BLU” wire circuit or from
“YEL/GRN” or “YEL/
BLU” wire circuit to
other wire circuit.
DTC B1336: Repair
short from “BLK/YEL”
wire circuit to “BRN/
YEL” wire circuit or from
“BLK/YEL” or “BRN/
YEL” wire circuit to
other wire circuit.

Step

Action

Yes

No

STEERING WHEEL

(B)

(C)

(A)

“G18”, “G41”

“L32-1”

“L32-2”

“L32-3”

1, (A)

“L32-4”

(A)

I5JB0A820058-01