Suzuki Grand Vitara JB627. Manual - part 311

8B-70 Air Bag System:

DTC B1085: Wrong Side-Sensor ID

S6JB0B8204029

DTC Will Set when
SDM receives wrong ID (Part No.) signal from side-sensor.

DTC Troubleshooting

1) Turn ignition switch OFF.
2) Replace driver or passenger side-sensor referring to “Side-Sensor Removal and Installation”.
3) Repeat “Air Bag Diagnostic System Check”.

NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and 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.

DTC B1086 / B1096: Left / Right Side-Sensor Performance Problem

S6JB0B8204030

DTC Will Set when
SDM receives internal fault signal from side-sensor.

DTC Troubleshooting

1) Turn ignition switch OFF.
2) Replace left or right side-sensor referring to “Side-Sensor Removal and Installation”.
3) Repeat “Air Bag Diagnostic System Check”.

DTC B1087 / B1097: Left / Right Side-Sensor Communication Error

S6JB0B8204031

Wiring Diagram

CAUTION

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

BLK

G46-16 GND

“G46”

RED

BLK/YEL

“G01”

G46-11

L33-15

L33-16

SR+

SR-

L33-14

L33-13

SL+

SL-

“L33”

WHT/RED

LT GRN/BLK

WHT/GRN

LT GRN

“L11”

“L35”

I5JB0A820053-02

1. From main fuse

4. Junction block assembly

7. Right side-sensor

2. Ignition switch

5. SDM

8. Ground for air bag system

3. “A/B” fuse

6. Left side-sensor

Air Bag System: 8B-71

DTC Will Set when
Side-sensor abnormal signal is detected by SDM.

Flow Test Description
Step 1: Check for open circuit in forward sensor circuit.
Step 2: Check for short circuit between forward sensor circuit and ground.
Step 3: Check for short circuit between forward sensor circuit and power supply circuit.
Step 4: Check if malfunction is in forward sensor.

DTC Troubleshooting

Step

Action

Yes

1) Disconnect side-sensor connector “L35” or “L11”.
2) Disconnect SDM connector “L33”.
3) Check proper connection to SDM connector at terminals

“L33-13” and “L33-14” or “L33-15” and “L33-16”.

4) Check proper connection to side-sensor connector at

terminals “L35-1” and “L35-2” or “L11-1” and “L11-2”.

5) Using service wire (1), connect “L35-1” and “L35-2”

terminal (for DTC B1087) or “L11-1” and “L11-2” terminal
(for DTC B1097) of side-sensor connector.

6) Measure resistance between terminals “L33-13” and

“L33-14” (for DTC B1087) or terminals “L33-15” and
“L33-16” (for DTC B1097) of SDM connector.

Special tool
(A): 09932–76010

Is each measured resistance 1

Ω

or less?

Go to Step 2

For DTC B1087: High
resistance or open wire
in “WHT/RED” circuit or
“LT GRN/BLK” circuit.
For DTC B1097: High
resistance or open wire
in “WHT/GRN” circuit or
“LT GRN” circuit.

Measure resistance between “L33-13” terminal and body
ground, and “L33-14” terminal and body ground (for DTC
B1087) or between “L33-15” terminal and body ground, and
“L33-16” terminal and body ground (for DTC B1097).

Special tool
(A): 09932–76010

Is each measured resistance infinity?

Go to Step 3.

For DTC B1087: “WHT/
RED” circuit or “LT
GRN/BLK” circuit
shorted to ground.
For DTC B1087: “WHT/
GRN” circuit or “LT
GRN” circuit shorted to
ground.

“L35-1”, “E11-1”

“L35-2”, “L11-2”

(A)

“L33-13” “L33-14” “L33-15” “L33-16”

I5JB0A820054-01

“L33-13” “L33-14” “L33-15” “L33-16”

(A)

I5JB0A820055-01

8B-72 Air Bag System:

DTC B1321 / B1325: Left / Right Side-Air Bag Initiator Circuit Resistance High

S6JB0B8204032

Wiring Diagram

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-air bag (inflator) module (left or right), harness wiring and connector terminal
contact is above a specified value for specified time.

Flow Test Description
Step 1: Check whether malfunction is in side-air bag (inflator) module.
Step 2: Check side-air bag initiator circuit in floor harness.
Step 3: Check side-air bag initiator circuit in seat harness.

Check side-sensor referring to “Side-Sensor Inspection”.

Is it in good condition?

Substitute a known-
good SDM and recheck.

Replace side-sensor
referring to “Side-
Sensor Removal and
Installation”. If DTC still
exists, substitute a
known-good SDM and
recheck.

Step

Action

Yes

BLK

G46-16 GND

“G46”

RED

BLK/YEL

“G01”

G46-11

“L33”

GRY/RED

GRY

BRN/WHT

BRN

“L25”

“L30”

L33-1

L33-2

L33-4

L33-3

RS-

RS+

LS-

LS+

BLU

BLK

[A]

“Q02”

“Q03”

I5JB0A820044-01

[A]: Shorting bar

3. “A/B” fuse

6. Left side-air bag (inflator) module

1. From main fuse

4. Junction block assembly

7. Right side-air bag (inflator) module

2. Ignition switch

5. SDM

8. Ground for air bag system

Air Bag System: 8B-73

DTC Troubleshooting

Step

Action

Yes

1) With ignition switch OFF, disconnect side-air bag

(inflator) module connector under front seat cushion.

2) Check proper connection to left or right side-air bag

(inflator) module at terminals in “L25” or “L30” connector.

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

bag (inflator) module connector disconnected at the Step
1).

Special tool
(B): 09932–75010
(C): 09932–78340

4) Check SDM DTC.

With ignition switch ON, is DTC B1321 or B1325 still
indicated?

Go to Step 2.

Go to Step 3.

“L25”, “L30”

(C)

(B)

STEERING WHEEL

I4RS0A820032-01

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