Content .. 530 531 532 533 ..

Infiniti Q45 (FY33). Manual - part 532

Diagnostic item

Explanation

Repair order

Recheck SRS at each

replacement.

ASSIST PRE-TEN-
SIONER
[OPEN/VB-SHORT]

The circuit for the front RH pre-tensioner is open or shorted to
some power supply circuit.

1. Visually check the wiring har-

ness connections.

2. Replace the harness if it has

visible damage.

3. Replace the front RH seat

belt.
(Before disposing, it must be
deactivated.)

4. Replace the diagnosis sensor

unit.

5. Replace the related harness.

ASSIST PRE-TEN-
SIONER
[GND-SHORT]

The circuit for the front RH pre-tensioner is shorted to ground.

CONTROL UNIT

Low battery voltage (Less than 9V)

Go to DIAGNOSTIC PROCE-
DURE 4 (RS-48) after charg-
ing battery.

Diagnosis sensor unit is malfunctioning.

1. Visually check wiring harness

connections.

2. Replace the harness if it has

visible damage.

3. Replace diagnosis sensor

unit.

4. Replae the related harness.

* Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated

using the air bag or seat belt warning lamp or CONSULT-II each time repair is finished. If malfunction is still observed, pro-
ceed to the next step. When malfunction is eliminated, further repair work is not required.

* CONSULT-II can only show one seat belt pre-tensioner malfunction as self-diagnosis result at a time. Check self-diagnosis

result with CONSULT-II whether other malfunctions are detected after repairing one seat belt pre-tensioner malfunction.

IDX

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

RS-43

SRS247

DIAGNOSTIC PROCEDURE 3 (

without CONSULT-

II)

Inspecting SRS malfunctioning parts by using “AIR BAG”
warning lamp — Diagnosis mode
NOTE:
SRS will not enter Diagnosis mode if no malfunction is
detected in User mode.
1.

Open driver’s door.

Turn ignition switch from “OFF” to “ON”.

Press driver’s door switch at least 5 times within 7 seconds
after turning ignition switch “ON”.
SRS is now in Diagnosis mode.

“AIR BAG” warning lamp operates in Diagnosis mode as fol-
lows:

NOTE:
If SRS does not enter Diagnosis mode even though malfunc-
tion is detected in User mode, go to DIAGNOSTIC PROCE-
DURE 11, page RS-57.

No.

“AIR BAG” warning lamp flash pattern — Diagnosis mode —

SRS condition

SRS333

through

are repeated.

Diagnosis
results (pre-
viously
stored in
the
memory)
might not
be erased
after repair.

Intermittent
malfunction
has been
detected in
the past.

Go to DIAG-
NOSTIC PRO-
CEDURE 7
(RS-52).

SRS341

through

are repeated.

— Driver and passenger air

bag marker (For identifying
driver and/or passenger air
bag malfunctioning)

— Indicates malfunctioning

part. The number of flash
varies with malfunctioning
part (0.5 sec. ON and 0.5
sec. OFF is counted as one
flash.)

The system is
malfunctioning
and needs to
be repaired.

SRS342-A

through

are repeated.

— Side air bag marker

(For identifying side
air bag malfunction-
ing)

— Indicates malfunctioning

part. The number of flash
varies with malfunctioning
part (0.5 sec. ON and 0.5
sec. OFF is counted as one
flash.)

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

RS-44

Malfunctioning part is indicated by the number of flashes (part

). Compare the number of flashes to AIR BAG WARN-

ING LAMP FLASH CODE CHART, page RS-45, and locate
malfunctioning part.

Turn ignition switch “OFF”, and disconnect both battery cables.

Repair the system as outlined by the “Repair order” in AIR BAG
WARNING LAMP FLASH CODE CHART that corresponds to
the flash code. For replacement procedure of component
parts, refer to RS-16.

After repairing the system, go to DIAGNOSTIC PROCEDURE
5, page RS-50.

AIR BAG WARNING LAMP FLASH CODE CHART (DIAGNOSIS MODE)

Diagnosis results
(previously stored in
the memory) might
not be erased after
repair.

Intermittent malfunc-
tion has been
detected in the past.

Flash pattern

SRS333

through

are repeated.

Repair order

Go to DIAGNOSTIC PROCEDURE 7 (RS-52).

The driver’s air bag
module circuit is out of
order.
(

: 2 flashes)

Flash pattern

SRS334

through

are repeated.

— Two flashes indicate

malfunctioning driver’s
air bag module circuit.

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace driver’s air bag module.

(Before disposal, it must be deployed.)

4. Replace the spiral cable.
5. Replace the diagnosis sensor unit.
6. Replace the related harness.

IDX

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

RS-45

The diagnosis sensor
unit is out of order.
(

: 7 flashes)

Flash pattern

SRS335

through

are repeated.

— Seven flashes indicate

malfunctioning diagno-
sis sensor unit.

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connections.
2. Replace the diagnosis sensor unit.
3. Replace the related harness.

The front passenger air
bag module circuit is
out of order.
(

: 8 flashes)

Flash pattern

SRS336

through

are repeated.

— Eight flashes indicate

malfunctioning front
passenger air bag mod-
ule circuit.

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace front passenger air bag module.

(Before disposal, it must be deployed.)

4. Replace the diagnosis sensor unit.
5. Replace the related harness.

The side air bag module
(RH) circuit is out of
order.
(

: 1 flash)

Flash pattern

SRS338

through

are repeated.

— One flash indicates mal-

functioning side air bag
module (RH) circuit.

Repair order (“Recheck SRS at each replacement.”)

1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace side air bag module (RH).

(Before disposal, it must be deployed.)

4. Replace the diagnosis sensor unit.
5. Replace the related harness.

TROUBLE DIAGNOSES — Supplemental Restraint System (SRS)

Self-diagnosis (Cont’d)

RS-46

Content .. 530 531 532 533 ..