Content .. 703 704 705 706 ..

Infiniti QX56 (Z62). Manual - part 705

EXL-112

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

LICENSE PLATE LAMP CIRCUIT

LICENSE PLATE LAMP CIRCUIT

Component Function Check

INFOID:0000000006213978

CHECK TAIL LAMP OPERATION

Check that the tail lamp is turned ON.
Is the inspection result normal?

YES

>> GO TO 2.

>> Refer to

EXL-109, "BODY SIDE : Component Function Check"

CHECK LICENSE PLATE LAMP OPERATION

CONSULT-III ACTIVE TEST

Select “EXTERNAL LAMPS” of IPDM E/R active test item.

With operating the lighting switch, check that the license plate lamp is turned ON.

Is the inspection result normal?

YES

>> License plate lamp circuit is normal.

>> Refer to

EXL-112, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000006213979

CHECK LICENSE PLATE LAMP BULB

Check the applicable lamp bulb.
Is the inspection result normal?

YES

>> GO TO 2.

>> Replace bulb.

CHECK LICENSE PLATE LAMP OPEN CIRCUIT

Turn ignition switch OFF.

Disconnect IPDM E/R connector and license plate lamp connector.

Check continuity between IPDM E/R harness connector and license plate lamp harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair or replace harness.

CHECK LICENSE PLATE LAMP GROUND OPEN CIRCUIT

Check continuity between license plate lamp harness connector and ground.

Is the inspection result normal?

YES

>> Check corresponding bulb socket and harness. Repair or replace if necessary.

>> Repair or replace harness.

TAIL

: License plate lamp ON

Off

: License plate lamp OFF

IPDM E/R

License plate lamp

Continuity

Connector

Terminal

Connector

Terminal

E14

D167

Existed

D168

License plate lamp

Ground

Continuity

Connector

Terminal

D167

Existed

D168

EXTERIOR LIGHTING SYSTEM SYMPTOMS

EXL-113

< SYMPTOM DIAGNOSIS >

[XENON TYPE]

EXL

SYMPTOM DIAGNOSIS

EXTERIOR LIGHTING SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000006213980

CAUTION:

Perform the self-diagnosis with CONSULT-III before the symptom diagnosis. Perform the trouble diag-
nosis if any DTC is detected.

Symptom

Possible cause

Inspection item

Headlamp does not
switch to the high beam.

One side

• Fuse
• Harness between IPDM E/R

and the front combination lamp

• Front combination lamp

(High beam solenoid)

• IPDM E/R
• Harness between the front com-

bination lamp and ground

Headlamp (HI) circuit
Refer to

EXL-86, "Component

Function Check"

Both sides

Symptom diagnosis
“BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM”
Refer to

EXL-117, "Diagnosis Procedure"

High beam indicator lamp is not turned ON.
[Headlamp (HI) is turned ON.]

Combination meter

• Combination meter

Data monitor “HI-BEAM IND”

• BCM (HEAD LAMP)

Active test “HEADLAMP”

Headlamp does not
switch to the low beam.

One side

Front combination lamp (High
beam solenoid)

—

Both sides

• Combination switch
• Harness between the combina-

tion switch and BCM

• BCM

Combination switch
Refer to

BCS-80, "Symptom Table"

High beam request signal
• BCM
• IPDM E/R

IPDM E/R
Data monitor “HL HI REQ”

IPDM E/R

—

Headlamp is not turned
ON.

One side

• Fuse
• Xenon bulb
• Harness between IPDM E/R

and the front combination lamp

• Front combination lamp (xenon

headlamp)

• IPDM E/R
• Harness between the front com-

bination lamp and ground

Headlamp (LO) circuit
Refer to

EXL-88, "Component

Function Check"

Both sides

Symptom diagnosis
“BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON”
Refer to

EXL-118, "Diagnosis Procedure"

Headlamp is not turned
OFF.

When the ignition
switch is turned ON

The ignition switch is
turned OFF (After acti-
vating the battery sav-
er).

IPDM E/R

—

EXL-114

< SYMPTOM DIAGNOSIS >

[XENON TYPE]

EXTERIOR LIGHTING SYSTEM SYMPTOMS

Each lamp is not turned ON/OFF with lighting switch
AUTO.

• Combination switch
• Harness between combination

switch and BCM

• BCM

Combination switch
Refer to

BCS-80, "Symptom Table"

• Optical sensor
• Harness between optical sen-

sor and BCM

• BCM

Optical sensor
Refer to

EXL-102, "Component

Function Check"

Front fog lamp is not
turned ON.

One side

• Front fog lamp bulb
• Harness between IPDM E/R

and front fog lamp

• Front fog lamp
• IPDM E/R

Front fog lamp circuit
Refer to

EXL-94, "Component

Function Check"

Both sides

Symptom diagnosis
“BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON”
Refer to

EXL-120, "Diagnosis Procedure"

Parking lamp is not turned ON.

• Parking lamp bulb
• Harness between IPDM E/R

and front combination lamp

• Front combination lamp
• IPDM E/R

Parking lamp circuit
Refer to

EXL-96, "Component

Function Check"

Front side marker lamp is not turned ON.

• Front side marker lamp bulb
• Harness between IPDM E/R

and front combination lamp

• Front combination lamp
• IPDM E/R

Front side marker lamp circuit
Refer to

EXL-98, "Component

Function Check"

Tail lamp or rear side
marker lamp is not turned
ON.

Body side

• Harness between IPDM E/R

and rear combination lamp

• Rear combination lamp

Tail lamp circuit (body side)
Refer to

EXL-109, "BODY SIDE :

Component Function Check"

Back door side

• Harness between IPDM E/R

and tail lamp (back door side)

• Tail lamp (back door side)

Tail lamp circuit (back door side)
Refer to

EXL-110, "BACK DOOR

SIDE : Component Function
Check"

License plate lamp is not turned ON.

• License plate lamp bulb
• Harness between IPDM E/R

and license plate lamp

• License plate lamp

License plate lamp circuit
Refer to

EXL-112, "Component

Function Check"

Tail lamp, rear side marker lamp and license plate
lamp are not turned ON.

• Fuse
• Harness between IPDM E/R

and rear combination lamp (LH)

• IPDM E/R

Tail lamp circuit (body side)
Refer to

EXL-109, "BODY SIDE :

Component Function Check"

• Parking lamp, side marker lamp, tail lamp and li-

cense plate lamp are not turned ON.

• Parking lamp, side marker lamp, tail lamp and li-

cense plate lamp are not turned OFF.

(Each illumination is turned ON/OFF.)

Symptom diagnosis
“PARKING, LICENSE PLATE, SIDE MARKER LAMP AND TAIL LAMPS
ARE NOT TURNED ON”
Refer to

EXL-119, "Diagnosis Procedure"

Tail lamp indicator is not turned ON.
(Parking, side marker lamp and tail lamps are turned
ON.)

Combination meter

• Combination meter

Data monitor “LIGHT IND”

• BCM (HEAD LAMP)

Active test “TAIL LAMP”

Turn signal lamp does not
blink.

Indicator lamp is nor-
mal.
(Applicable side per-
forms the high flasher
activation.)

• Harness between BCM and

each turn signal lamp

• Turn signal lamp bulb

Turn signal lamp circuit
Refer to

EXL-99, "Component

Function Check"

Indicator lamp is includ-
ed.

• Combination switch
• Harness between combination

switch and BCM

• BCM

Combination switch
Refer to

BCS-80, "Symptom Table"

Symptom

Possible cause

Inspection item

EXTERIOR LIGHTING SYSTEM SYMPTOMS

EXL-115

< SYMPTOM DIAGNOSIS >

[XENON TYPE]

EXL

Turn signal indicator lamp
does not blink.
(Turn signal i lamp is nor-
mal.)

One side

Combination meter

—

Both sides
(Always)

• Turn signal indicator lamp sig-

nal

- BCM
• Combination meter

• Combination meter

Data monitor “TURN IND”

• BCM (FLASHER)

Active test “FLASHER”

Both sides
(Only when activating
hazard warning lamp
with the ignition switch
OFF)

• Combination meter power sup-

ply and ground circuit

• Combination meter

Combination meter
Power supply and ground circuit
Refer to

MWI-64, "COMBINATION

METER : Diagnosis Procedure"

• Hazard warning lamp does not activate.
• Hazard warning lamp continues activating.
(Turn signal is normal.)

• Hazard switch
• Harness between hazard

switch and BCM

• BCM

Hazard switch
Refer to

EXL-105, "Component

Function Check"

AFS control does not activate.

• Harness between AFS control

unit and AFS switch.

• AFS control unit

AFS switch
Refer to

EXL-107, "Component

Function Check"

Headlamp auto aiming does not activate.
(AFS is normal.)

• Harness between AFS control

unit and aiming motor

• Front combination lamp

(Aiming motor)

• AFS control unit

Headlamp levelizer circuit
Refer to

EXL-91, "Component

Function Check"

AFS OFF indicator lamp is not turned ON.

• AFS OFF indicator lamp signal
- Combination meter
- AFS control unit
• Combination meter

Combination meter
Data monitor “AFS OFF IND”

Symptom

Possible cause

Inspection item

Content .. 703 704 705 706 ..