Infiniti Q45. Manual - part 866

TROUBLE DIAGNOSIS

SRS-21

C

D

E

F

G

I

J

K

L

M

A

B

SRS

SRS Operation Check

NHS0004J

DIAGNOSTIC PROCEDURE 1
Checking Air Bag Operation by Using “AIR BAG” Warning Lamp — User Mode

1.

Turn the ignition switch from OFF to ON, and check that the air bag warning lamp blinks.

2.

Compare the SRS air bag warning lamp blinking pattern with the
examples.

BF-1845D

SRS-22

TROUBLE DIAGNOSIS

Warning lamp examples

“AIR BAG” warning lamp operation-User mode-

SRS condition

Reference item

●

No malfunction is detected.

●

No further action is necessary.

—

●

The system is malfunctioning and 
needs to be repaired as indicated.

Go to 

SRS-23, "DIAGNOSTIC 

PROCEDURE 2"

  or 

SRS-34, 

"DIAGNOSTIC PROCEDURE 6"

 .

●

Air bag is deployed.

●

Seat belt pre-tensioner is deployed.

Go to 

SRS-51, "COLLISION DIAG-

NOSIS"

 .

●

Diagnosis sensor unit is malfunction-
ing.

●

Air bag power supply circuit is mal-
functioning.

●

SRS air bag warning lamp circuit is 
malfunctioning.

Go to 

SRS-38, "Trouble Diagnosis: 

“AIR BAG” Warning Lamp Does Not 
Turn OFF"

 .

●

Diagnosis sensor unit is malfunction-
ing.

●

Air bag warning lamp circuit is mal-
functioning.

Go to 

SRS-39, "Trouble Diagnosis: 

“AIR BAG” Warning Lamp Does Not 
Turn ON"

 .

SHIA0011E

SHIA0012E

SHIA0013E

SHIA0014E

TROUBLE DIAGNOSIS

SRS-23

C

D

E

F

G

I

J

K

L

M

A

B

SRS

Trouble Diagnosis with CONSULT-II

NHS0004K

DIAGNOSTIC PROCEDURE 2

Refer to 

GI-36, "CONSULT-II Start Procedure"

 .

1.

Touch “SELF-DIAG [CURRENT]”.

2.

Diagnostic code is displayed on “SELF-DIAG [CURRENT]”.

3.

If no malfunction is detected on “SELF-DIAG [CURRENT]” even
though malfunction is detected in “SRS Operation Check”,
check the battery voltage. If the battery voltage is less than 9 V,
charge or replace the battery. Then go to 

SRS-27, "DIAGNOS-

TIC PROCEDURE 3"

 . If the battery voltage is OK, go to 

SRS-

29, "DIAGNOSTIC PROCEDURE 4 (CONTINUED FROM
DIAGNOSTIC PROCEDURE 2)"

  to diagnose the following

cases:

●

Self-diagnostic result “SELF-DIAG [PAST]” (previously stored
in the memory) might not be erased after repair.

●

The SRS system malfunctions intermittently.

SRS697

SHIA0203E

SRS701

SRS-24

TROUBLE DIAGNOSIS

CONSULT-II Diagnostic Code Chart (“SELF-DIAG [CURRENT]”)

Diagnostic item

Explanation

Repair order

“Recheck SRS at each replacement”

NO DTC IS 
DETECTED.

When malfunction is 
indicated by the “AIR 
BAG” warning lamp in 
User mode.

●

Low battery voltage (Less than 9V)

●

Go to 

SRS-23, "DIAGNOSTIC PRO-

CEDURE 2"

  after charging the bat-

tery.

●

Self-diagnostic result “SELF-DIAG 
[PAST]” (previously stored in the 
memory) might not be erased after 
repair.

●

Intermittent malfunction has been 
detected in the past.

●

Go to 

SRS-29, "DIAGNOSTIC PRO-

CEDURE 4 (CONTINUED FROM 
DIAGNOSTIC PROCEDURE 2)"

 .

●

Go to 

SRS-29, "DIAGNOSTIC PRO-

CEDURE 5"

 .

●

No malfunction is detected.

—

DRIVER AIRBAG 
MODULE
[OPEN]

●

Driver air bag module circuit is open (including the spiral cable).

1. Visually check the wiring harness 

connection.

2. Replace the harness if it has visible 

damage.

3. Replace driver air bag module. 

4. Replace the spiral cable.

5. Replace the diagnosis sensor unit.

6. Replace the related harness.

DRIVER AIRBAG 
MODULE
[VB-SHORT]

●

Driver air bag module circuit is shorted to a power supply circuit 
(including the spiral cable).

DRIVER AIRBAG 
MODULE
[GND-SHORT]

●

Driver air bag module circuit is shorted to ground (including the 
spiral cable).

DRIVER AIRBAG 
MODULE
[SHORT]

●

Driver air bag module circuit is shorted between lines.

ASSIST A/B MODULE
[OPEN]

●

Front passenger air bag module circuit is open.

1. Visually check the wiring harness 

connection.

2. Replace the harness if it has visible 

damage.

3. Replace front passenger air bag 

module.

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

ASSIST A/B MODULE
[VB-SHORT]

●

Front passenger air bag module circuit is shorted to a power-
supply.

ASSIST A/B MODULE
[GND-SHORT]

●

Front passenger air bag module circuit is shorted to ground.

ASSIST A/B MODULE
[SHORT]

●

Front passenger air bag module circuit is shorted between lines.

CRASH ZONE SEN
[UNIT FAIL]
CRASH ZONE SEN
[COMM FAIL]

●

Crash zone sensor

1. Visually check the wiring harness 

connection.

2. Replace the harness if it has visible 

damage.

3. Replace the crash zone sensor.

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

SIDE MODULE LH
[OPEN]

●

Front LH side air bag module circuit is open.

1. Visually check the wiring harness 

connection.

2. Replace the harness if it has visible 

damage.

3. Replace front LH setback assembly 

(Front LH side air bag module).

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

SIDE MODULE LH
[VB-SHORT]

●

Front LH side air bag module circuit is shorted to a power sup-
ply circuit.

SIDE MODULE LH
[GND-SHORT]

●

Front LH side air bag module circuit is shorted to ground.

SIDE MODULE LH
[SHORT]

●

Front LH side air bag module circuit is shorted between lines.