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Infiniti Q45. Manual - part 867

TROUBLE DIAGNOSIS

SRS-25

SRS

SIDE MODULE RH
[OPEN]

●

Front RH 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 RH setback assembly

(Front RH side air bag module).

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

SIDE MODULE RH
[VB-SHORT]

●

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

SIDE MODULE RH
[GND-SHORT]

●

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

SIDE MODULE RH
[SHORT]

●

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

SATELLITE SENS LH
[UNIT FAIL]
SATELLITE SENS LH
[COMM FAIL]

●

LH side air bag (Satellite) sensor

1. Visually check the wiring harness

connection.

2. Replace the harness if it has visible

damage.

3. Replace the LH side air bag (Satel-

lite) sensor.

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

SATELLITE SENS RH
[UNIT FAIL]
SATELLITE SENS RH
[COMM FAIL]

●

RH side air bag (Satellite) sensor

1. Visually check the wiring harness

connection.

2. Replace the harness if it has visible

damage.

3. Replace the RH side air bag (Satel-

lite) sensor.

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

PRE-TEN FRONT LH
[OPEN]

●

Front LH pre-tensioner circuit is open.

1. Visually check the wiring harness

connections.

2. Replace the harness if it has visible

damage.

3. Replace front LH seat belt.

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

PRE-TEN FRONT LH
[VB-SHORT]

●

Front LH pre-tensioner circuit is shorted to a power supply cir-
cuit.

PRE-TEN FRONT LH
[GND-SHORT]

●

Front LH pre-tensioner circuit is shorted to ground.

PRE-TEN FRONT LH
[SHORT]

●

Front LH pre-tensioner circuit is shorted between lines.

PRE-TEN FRONT RH
[OPEN]

●

Front RH pre-tensioner circuit is open.

1. Visually check the wiring harness

connections.

2. Replace the harness if it has visible

damage.

3. Replace front RH seat belt.

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

PRE-TEN FRONT RH
[VB-SHORT]

●

Front RH pre-tensioner circuit is shorted to a power supply cir-
cuit.

PRE-TEN FRONT RH
[GND-SHORT]

●

Front RH pre-tensioner circuit is shorted to ground.

PRE-TEN FRONT RH
[SHORT]

●

Front RH pre-tensioner circuit is shorted between lines.

CURTAIN MODULE LH
[OPEN]

●

LH side curtain air bag module circuit is open.

1. Visually check the wiring harness

connection.

2. Replace the harness if it has visible

damage.

3. Replace LH side curtain air bag

module.

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

CURTAIN MODULE LH
[VB-SHORT]

●

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

CURTAIN MODULE LH
[GND-SHORT]

●

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

CURTAIN MODULE LH
[SHORT]

●

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

Diagnostic item

Explanation

Repair order

“Recheck SRS at each replacement”

SRS-26

TROUBLE DIAGNOSIS

NOTE:
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is
eliminated using air bag warning lamp or CONSULT-II each time repair is finished. If malfunction is still
observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.

CURTAIN MODULE RH
[OPEN]

●

RH side curtain air bag module circuit is open.

1. Visually check the wiring harness

connection.

2. Replace the harness if it has visible

damage.

3. Replace RH side curtain air bag

module.

4. Replace the diagnosis sensor unit.

5. Replace the related harness.

CURTAIN MODULE RH
[VB-SHORT]

●

RH side curtain air bag module circuit is shorted to a power sup-
ply circuit.

CURTAIN MODULE RH
[GND-SHORT]

●

RH side curtain air bag module circuit is shorted to ground.

CURTAIN MODULE RH
[SHORT]

●

RH side curtain air bag module circuit is shorted between lines.

CONTROL UNIT

●

Diagnosis sensor unit is malfunctioning.

1. Visually check the wiring harness

connection.

2. Replace the harness if it has visible

damage.

3. Replace the diagnosis sensor unit.

PASS A/B INDCTR
CKT

●

Cutoff telltale circuit is open or shorted to grand or the circuits
are shorted each other.

1. Visually check the wiring harness

connection.

2. Replace the harness if it has visible

damage.

3. Replace cutoff telltale.

4. Replace the diagnosis sensor unit.

OCCUPANT SENS C/U
[UNIT FAIL]

●

Trouble occurs in Occupant Classification System-CU.

●

Replace passenger side seat cush-
ion assembly.

OCCUPANT SENS
[UNIT FAIL]

●

Trouble occurs in Occupant Classification System-SENS.

●

Replace passenger side seat cush-
ion assembly.

BELT TENSION SENS
[UNIT FAIL]

●

Trouble occurs in Belt Tension sensor (BTS), circuit of BTS—
Occupant Classification System-CU, or Occupant Classification
System-CU.

1. Visually check the wiring harness

connection.

2. Replace the harness if it has visible

damage.

3. Replace passenger side seat belt

assembly.

4. Replace the diagnosis sensor unit.

OCCUPANT SENS C/U
[COMM FAIL]

●

Trouble occurs in Occupant Classification System-CU, circuit of
Occupant Classification System-CU—Diagnosis Senser Unit, or
Diagnosis Sensor Unit.

1. Visually check the wiring harness

connection.

2. Replace the harness if it has visible

damage.

3. Replace passenger side seat cush-

ion assembly.

4. Replace the diagnosis sensor unit.

FRONTAL COLLISION-
DETECTION

●

Seat belt pre-tensioner and front air bag are deployed.

●

Go to

SRS-51, "For Frontal Colli-

sion"

SIDE COLLISION
DETECTION

●

Side and curtain air bag is deployed.

●

Go to

SRS-53, "For Side Collision"

Diagnostic item

Explanation

Repair order

“Recheck SRS at each replacement”

TROUBLE DIAGNOSIS

SRS-27

SRS

DIAGNOSTIC PROCEDURE 3

Final checking after repairing SRS by using CONSULT-II — Diagnosis mode
Refer to

GI-36, "CONSULT-II Start Procedure"

Touch “SELF-DIAG [CURRENT]”.

If no malfunction is detected on “SELF-DIAG [CURRENT]”,
repair of SRS is completed. Go to step 3.
If any malfunction is detected on “SELF-DIAG [CURRENT]”, the
malfunctioning part is not repaired completely or another mal-
functioning part is detected. Go to

SRS-23, "DIAGNOSTIC

PROCEDURE 2"

, and repair malfunctioning part completely.

Touch “ERASE”.

NOTE:
Touch “ERASE” to clear the memory of the malfunction (“SELF-
DIAG [PAST]”).
If the memory of the malfunction in “SELF-DIAG [PAST]” is not
erased, the User mode shows the system malfunction by the
operation of the warning lamp even if the malfunction is repaired
completely.

Touch “BACK” key of CONSULT-II to “SELECT DIAG MODE”
screen. Touch “SELF-DIAG [PAST]”.

SRS697

SRS701

SRS773

SRS697

SRS-28

TROUBLE DIAGNOSIS

Check that no malfunction is detected on “SELF-DIAG [PAST]”.

Touch “BACK” key of CONSULT-II until “SELECT SYSTEM”
appears in order to return to User mode from Diagnosis mode.

Turn ignition switch OFF then turn off and disconnect CON-
SULT-II. Go to

SRS-21, "Checking Air Bag Operation by Using

“AIR BAG” Warning Lamp — User Mode"

SRS702

Content .. 865 866 867 868 ..