Infiniti QX4 (R50). Manual — part 571

2

CHECK 4WD WARNING LAMP

Is 4WD warning lamp turned ON?

SMT958D

Yes or No

Yes

©

1. Turn ignition switch to “OFF” position.
2. Perform self-diagnosis.

Refer to “Trouble Diagnosis without CONSULT-II”, TF-27.

3. Go to “2. CHECK AT IDLE”. Refer to TF-47.

No

©

Go to Symptom 2. Refer to TF-100.

TROUBLE DIAGNOSIS — BASIC INSPECTION

Road Test (Cont’d)

TF-46

2. CHECK AT IDLE

=NBTF0017S03

1

CHECK 4WD SHIFT INDICATOR LAMP

1. Park vehicle on flat surface.
2. Turn ignition switch to “OFF” position.
3. Move A/T selector lever to “P” or “N” position.
4. Set 4WD shift switch to “4H” position.
5. Set 4WD shift switch to “2WD” position.
6. Start engine.
7. Is 4WD shift indicator lamp turned OFF?

SMT958D

Yes or No

Yes

©

Go to “ATP SWITCH, WAIT DETECTION SWITCH AND NEUTRAL-4LO SWITCH”. Refer
to TF-76.

No

©

GO TO 2.

2

CHECK 4WD WARNING LAMP

Is 4WD warning lamp turned OFF?

Yes or No

Yes

©

GO TO 3.

No

©

Perform self-diagnosis. Refer to “Trouble Diagnosis without CONSULT-II”, TF-27.

GI

MA

EM

LC

EC

FE

AT

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

TROUBLE DIAGNOSIS — BASIC INSPECTION

Road Test (Cont’d)

TF-47

3

CHECK 4WD SHIFT INDICATOR LAMP

1. Set 4WD shift switch to “2WD”, “AUTO”, “4H”, “4LO”, “4H” and “2WD” in order.

(Stay at each switch position for at least 1 second.)

2. Does 4WD shift indicator lamp change properly and does buzzer sound?

SMT851D

SMT971D

Yes or No

Yes

©

GO TO 4.

No

©

Go to “2-4WD SHIFT SOLENOID VALVE AND 4WD SHIFT SWITCH”. Refer to TF-66.

4

CHECK 4WD WARNING LAMP

Is 4WD warning lamp turned ON?

Yes or No

Yes

©

Perform self-diagnosis. (Refer to “Trouble Diagnosis without CONSULT-II”, TF-27.)

No

©

GO TO 5.

TROUBLE DIAGNOSIS — BASIC INSPECTION

Road Test (Cont’d)

TF-48

5

CHECK 4WD SHIFT INDICATOR LAMP

1. Move A/T selector lever to “P” position.
2. Set 4WD shift switch from “4H” to “4LO”.

SMT849D

3. While shifting from “4H” to “4LO”, does 4WD shift indicator lamp turn OFF and ATP warning lamp turn ON?

SMT958D

Yes or No

Yes

©

GO TO 6.

No

©

Go to Symptoms 3 and 4. Refer to TF-102.

GI

MA

EM

LC

EC

FE

AT

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

TROUBLE DIAGNOSIS — BASIC INSPECTION

Road Test (Cont’d)

TF-49