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Infiniti QX4 (R50). Manual - part 535

Diagnostic item

Explanation

Repair order

CONTROL UNIT

Diagnosis sensor unit is malfunctioning.

1. Visually check the wiring harness

connection.

2. Replace the harness if it has visible

damage.

3. If the harness check is OK, replace

the diagnosis sensor unit.

* Follow the procedures in numerical order when repairing malfunctioning parts, then make the final system check.

SRS800

Trouble Diagnoses without CONSULT-II

NBRS0046

DIAGNOSTIC PROCEDURE 6

NBRS0046S01

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.

Turn ignition switch “ON”.

After “AIR BAG” warning lamp lights for 7 seconds, turn igni-
tion switch “OFF” within 1 second.

Wait more than 3 seconds.

Repeat steps 1 to 3 three times.

Turn 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 malfunction is
detected in User mode, check the battery voltage.
If the battery voltage is less than 9V, charge the battery. Then go
to DIAGNOSTIC PROCEDURE 7, page RS-53.
If the battery voltage is OK, replace the diagnosis sensor unit.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Trouble Diagnoses with CONSULT-II (Cont’d)

RS-48

No.

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

SRS condition

SRS333

a through b 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 8
(RS-55).

SRS341

a through d are repeated.
b — Driver and passenger
air bag and seat belt pre-ten-
sioner marker (For identifying
driver air bag, passenger air
bag and/or seat belt pre-ten-
sioners malfunctioning)
d — Indicates malfunctioning
part. The number of flash var-
ies 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

a through f are repeated.
b, c, d — Side air bag
marker (For identifying side
air bag malfunctioning)
f — Indicates malfunctioning
part. The number of flash var-
ies with malfunctioning part
(0.5 sec. ON and 0.5 sec.
OFF is counted as one flash.)

Malfunctioning part is indicated by the number of flashes (part
d or f). Compare the number of flashes to “Air Bag Warning
Lamp Flash Code Chart”, page RS-50, and locate malfunction-
ing part.

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

Repair the system as outlined by the “Repair order” in “Warn-
ing Lamp Flash Code Chart” that corresponds to the flash
code. For replacement procedure of component parts, refer to
RS-15.

10. After repairing the system, go to DIAGNOSTIC PROCEDURE

7, page RS-53.

IDX

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Trouble Diagnoses without CONSULT-II (Cont’d)

RS-49

Air Bag Warning Lamp Flash Code Chart (Diagnosis
mode)

NBRS0046S0101

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

Intermittent malfunc-
tion has been detected
in the past.

Flash pattern

SRS333

a through b are
repeated.

Repair order

Go to DIAGNOSTIC PROCEDURE 8 (RS-55).

The front RH seat belt
pre-tensioner circuit is
malfunctioning.
(d: 1 flash)

Flash pattern

SRS801

a through d are
repeated.
d — One flash indicates
malfunctioning front RH
pre-tensioner circuit.

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

1. Visually check the wiring harness connections.
2. Replace the harness if it has visible damage.
3. Replace front RH seat belt pre-tensioner.

(Before disposing, it must be deactivated.)

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

The driver’s air bag mod-
ule circuit is malfunction-
ing.
(d: 2 flashes)

Flash pattern

SRS334

a through d are
repeated.
d — Two flashes indi-
cate malfunctioning driv-
er’s air bag module cir-
cuit.

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 the spiral cable.
4. Replace driver’s air bag module.

(Before disposal, it must be deployed.)

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

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Trouble Diagnoses without CONSULT-II (Cont’d)

RS-50

The front LH seat belt
pre-tensioner circuit is
malfunctioning.
(d: 3 flashes)

Flash pattern

SRS802

a through d are
repeated.
d — Three flashes indi-
cate malfunctioning front
LH pre-tensioner circuit.

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

1. Visually check the wiring harness connections.
2. Replace the harness if it has visible damage.
3. Replace front LH seat belt pre-tensioner.

(Before disposing, it must be deactivated.)

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

The diagnosis sensor
unit is malfunctioning.
(d: 7 flashes)

Flash pattern

SRS335

a through d are
repeated.
d — Seven flashes indi-
cate malfunctioning diag-
nosis sensor unit.

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

1. Visually check the wiring harness connections.
2. Replace the harness if it has visible damage.
3. Replace the diagnosis sensor unit.
4. Replace the related harness.

The front passenger air
bag module circuit is
malfunctioning.
(d: 8 flashes)

Flash pattern

SRS336

a through d are
repeated.
d — Eight flashes indi-
cate 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.

IDX

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

Trouble Diagnoses without CONSULT-II (Cont’d)

RS-51

Content .. 533 534 535 536 ..