INFINITI QX56 2011 Factory Service Manual

HEADLAMP LEVELIZER CIRCUITEXL-91
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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HEADLAMP LEVELIZER CIRCUIT
Component Function CheckINFOID:0000000006213960
1.CHECK AIMING MOTOR OPERATION
CONSULT-III ACTIVE TEST
1. Start the engine.
2. Turn the lighting switch 2ND.
3. Select “LEVELIZER TEST” of ADAP TIVE LIGHT active test item.
4. With operating the test item, check the operation.
Is the operation normal?
YES >> Headlamp levelizer circuit is normal.
NO >> Refer to EXL-91, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006213961
1.CHECK AIMING MOTOR DRIVE SIGNAL OUTPUT
CONSULT-III ACTIVE TEST
1. Start the engine.
2. Turn light switch 2ND.
3. Select “LEVELIZER TEST” of ADAP TIVE LIGHT active test item.
4. With operating the test item, check voltage between AFS control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK AIMING MOTOR DRIVE SIGNAL OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and headlamp aiming motor connector.
3. Check continuity between AFS control unit har ness connector and head lamp aiming motor harness con-
nector.
Is the inspection result normal?
YES >> Replace front combination lamp.
NO >> Repair or replace harness.
Te s t i t e m Optical axis
LEVELIZER TEST
Origin Standard positonPeak Lowest position
(+) (− ) Test item Voltag e
(Approx.)
AFS control unit
Connector Terminal
RH M13519
Ground LEVELIZER TEST Origin 7.5 V
Peak 7.3 V
LH 40 Origin 7.5 V
Peak 7.3 V
AFS control unit Headlamp aiming motor
Continuity
Connector Terminal Connector Terminal
RH M13519 E121
1 Existed
LH 40 E120
Revision: 2010 May2011 QX56

EXL-92
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
HEADLAMP LEVELIZER CIRCUIT
3.CHECK AIMING MOTOR DRIVE
SIGNAL SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and headlamp aiming motor connector.
3. Check continuity between AFS control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace AFS control unit. Refer to EXL-135, "Removal and Installation"
NO >> Repair or replace harness.
AFS control unit
GroundContinuity
Connector Terminal
RH M13519
Not existed
LH 40
Revision: 2010 May2011 QX56

HEADLAMP AIMING SYSTEM (MANUAL)EXL-93
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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HEADLAMP AIMING SYSTEM (MANUAL)
Component InspectionINFOID:0000000006216752
1.CHECK HEADLAMP AIMING SWITCH
1. Remove headlamp aiming switch.
2. Check resistance among each headlamp aiming switch terminal.
Is the inspection result normal?
YES >> Headlamp aiming switch is normal.
NO >> Replace the headlamp aiming switch.
Headlamp aiming switch Condition Resistance
(Approx.)
Terminal Switch position
1 20 A: 910
Ω
1 B: 680 Ω
2 C: 510 Ω
3 D: 390 Ω
3 — E: 390 Ω
JSLIA0084ZZ
Revision: 2010 May2011 QX56

EXL-94
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
FRONT FOG LAMP CIRCUIT
FRONT FOG LAMP CIRCUIT
Component Function CheckINFOID:0000000006213962
1.CHECK FRONT FOG LAMP OPERATION
CONSULT-III ACTIVE TEST
1. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
2. With operating the test items, check that the front fog lamp is turned ON.
Is the inspection result normal?
YES >> Front fog lamp circuit is normal.
NO >> Refer to EXL-94, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006213963
1.CHECK FRONT FOG LAMP FUSE
1. Turn ignition switch OFF.
2. Check that the following fuse is not fusing.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK FRONT FOG LAMP SHORT CIRCUIT
1. Disconnect front fog lamp connector.
2. Check continuity between IP DM E/R harness connector and ground.
Is the inspection result normal?
YES >> Replace fuse. (Replace IPDM E/R if the fuse is fusing again.)
NO >> Repair or replace harness. And then replace the fuse.
3.CHECK FRONT FOG LAMP BULB
Check the applicable lamp bulb.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace bulb.
4.CHECK FRONT FOG LAMP OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1. Disconnect front fog lamp connector.
2. Turn ignition switch ON.
3. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
4. With operating the test items, check vo ltage between IPDM E/R harness connector and ground.
Fog : Front fog lamp ON
Off : Front fog lamp OFF
Unit Location Fuse No. Capacity
Front fog lamp IPDM E/R #50 15 A
IPDM E/R
GroundContinuity
Connector Terminal
RH E1219
Not existed
LH 20
Revision: 2010 May2011 QX56

FRONT FOG LAMP CIRCUITEXL-95
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace IPDM E/R.
5.CHECK FRONT FOG LAMP OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and front fog lamp harness connector.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace harness.
6.CHECK FRONT FOG LAMP GROUND CIRCUIT OPEN CIRCUIT
Check continuity between front fog lamp harness connector and ground.
Is the inspection result normal?
YES >> Replace front fog lamp.
NO >> Repair or replace harness.
(+) (− ) Test item Voltag e
(Approx.)
IPDM E/R
Connector Terminal
RH E1219
GroundEXTERNAL
LAMPS Fog Battery voltage
Off 0 V
LH 20 Fog Battery voltage
Off 0 V
IPDM E/R Front fog lamp
Continuity
Connector Terminal Connector Terminal
RH E1219 E48
1 Existed
LH 20 E30
Front fog lamp
GroundContinuity
Connector Terminal
RH E48 2Existed
LH E30
Revision: 2010 May2011 QX56

EXL-96
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
PARKING LAMP CIRCUIT
PARKING LAMP CIRCUIT
Component Function CheckINFOID:0000000006213964
1.CHECK PARKING LAMP OPERATION
CONSULT-III ACTIVE TEST
1. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
2. With operating the test items, check that the parking lamp is turned ON.
Is the inspection result normal?
YES >> Parking lamp circuit is normal.
NO >> Refer to EXL-96, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006213965
1.CHECK PARKING LAMP FUSE
1. Turn ignition switch OFF.
2. Check that the following fuses are not fusing.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK PARKING LAMP SHORT CIRCUIT
1. Disconnect the following connectors.
- IPDM E/R
- Front combination lamp
- Rear combination lamp
- License plate lamp
2. Check continuity between IP DM E/R harness connector and ground.
Is the inspection result normal?
YES >> Replace fuse. (Replace IPDM E/R if fusing is found again.)
NO >> Repair or replace harness. And then replace the fuse.
3.CHECK PARKING LAMP BULB
Check applicable lamp bulb.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace bulb.
4.CHECK PARKING LAMP OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1. Disconnect front combination lamp connector.
2. Turn ignition switch ON. TAIL : Parking lamp ON
Off : Parking lamp OFF
Unit Location Fuse No. Capacity
Parking lamp IPDM E/R #46
10 A
#47
IPDM E/R
GroundContinuity
Connector Terminal
RH E1437
Not existed
LH 43
Revision: 2010 May2011 QX56

PARKING LAMP CIRCUITEXL-97
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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3. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
4. With operating the test items, check vo ltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace IPDM E/R.
5.CHECK PARKING LAMP OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connec tor and front combination lamp harness connector.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace harness.
6.CHECK PARKING LAMP GROUND OPEN CIRCUIT
Check continuity between front combination lamp harness connector and ground.
Is the inspection result normal?
YES >> Check corresponding bulb socket and harness. Repair or replace if necessary.
NO >> Repair or replace harness.
(+)
(− ) Test item Voltag e
(Approx.)
IPDM E/R
Connector Terminal
RH E1437
GroundEXTERNAL
LAMPS TAIL Battery voltage
Off 0 V
LH 43 TAIL Battery voltage
Off 0 V
IPDM E/R Front combination lamp
Continuity
Connector Terminal Connector Terminal
RH E1437 E119
7 Existed
LH 43 E118
Front combination lamp
GroundContinuity
Connector Terminal
RH E119 3Existed
LH E118
Revision: 2010 May2011 QX56

EXL-98
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
FRONT SIDE MARKER LAMP CIRCUIT
FRONT SIDE MARKER LAMP CIRCUIT
Component Function CheckINFOID:0000000006238400
1.CHECK PARKING LAMP OPERATION
Check that the parking lamp is turned ON.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Refer to EXL-96, "
Component Function Check".
2.CHECK FRONT SIDE MARKER LAMP OPERATION
CONSULT-III ACTIVE TEST
1. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
2. With operating the lighting switch, check that the front side marker lamp is turned ON.
Is the inspection result normal?
YES >> Front side marker lamp circuit is normal.
NO >> Refer to EXL-98, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006238401
1.CHECK FRONT SIDE MARKER LAMP BULB
Check the applicable lamp bulb.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace bulb.
2.CHECK FRONT SIDE MARKER LAMP OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front combination lamp connector.
3. Check continuity between IPDM E/R harness connec tor and front combination lamp harness connector.
Is the inspection result normal?
YES >> Check corresponding bulb socket and harness. Repair or replace if necessary.
NO >> Repair or replace harness. TAIL : Front side marker lamp ON
Off : Front side marker lamp OFF
IPDM E/R Front combination lamp
Continuity
Connector Terminal Connector Terminal
LH E1443 E118
4 Existed
RH 37 E119
Revision: 2010 May2011 QX56

TURN SIGNAL LAMP CIRCUITEXL-99
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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TURN SIGNAL LAMP CIRCUIT
Component Function CheckINFOID:0000000006213967
1.CHECK TURN SIGNAL LAMP
CONSULT-III ACTIVE TEST
1. Select “FLASHER” of BCM (FLASHER) active test item.
2. With operating the test items, check that the turn signal lamp is turned ON.
Is the inspection result normal?
YES >> Turn signal lamp circuit is normal.
NO >> Refer to EXL-99, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006213968
1.CHECK TURN SIGNAL LAMP BULB
Check applicable lamp bulb.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace bulb.
2.CHECK TURN SIGNAL LA MP OUTPUT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect front combination lamp connector, door mirror connector and rear combination lamp connec- tor.
3. Turn ignition switch ON.
4. With operating the turn signal switch, check voltage between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 4. LH : Turn signal lamps (LH) ON
RH : Turn signal lamps (RH) ON
Off : Turn signal lamps OFF
(+)
(–) Condition Vo l ta g e
(Approx.)
BCM
Connector Terminal
M70 60
GroundTurn signal
switch LH
OFF 0 V
61 RH
OFF 0 V
PKID0926E
PKID0926E
Revision: 2010 May2011 QX56

EXL-100
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
TURN SIGNAL LAMP CIRCUIT
3.CHECK TURN SIGNAL LAMP OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector and front combination lamp, door mirror or rear combi- nation lamp harness connector.
Front turn signal lamp
Side turn signal lamp
Rear turn signal lamp
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace harness.
4.CHECK TURN SIGNAL LAMP SHORT CIRCUIT
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> Check each bulb socket for internal short circuit. Replace BCM if check result is normal. Refer to BCS-81, "
Removal and Installation".
NO >> Repair or replace harness.
5.CHECK TURN SIGNAL LAMP GROUND OPEN CIRCUIT
Check continuity between front combination lamp, door mirror or rear combination lamp and ground.
Front turn signal lamp
Side turn signal lamp
BCM Front combination lamp Continuity
Connector Terminal Connector Terminal
LH M7060 E118
8 Existed
RH 61 E119
BCM Door mirror Continuity
Connector Terminal Connector Terminal
Driver side M7060 D3
20 Existed
Passenger side 61 D23
BCM Rear combination lamp Continuity
Connector Terminal Connector Terminal
LH M7060 B60
3 Existed
RH 61 B232
BCM
GroundContinuity
Connector Terminal
M70 60
Not existed
61
Front combination lamp
GroundContinuity
Connector Terminal
LH E118 3 Existed
RH E119
Door mirror GroundContinuity
Connector Terminal
Driver side D3 19 Existed
Passenger side D23
Revision: 2010 May2011 QX56