turn signal INFINITI QX56 2011 Factory Service Manual

DIAGNOSIS SYSTEM (IPDM E/R)EXL-27
< SYSTEM DESCRIPTION > [XENON TYPE]
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DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000006368066
AUTO ACTIVE TEST
Description
In auto active test, the IPDM E/R sends a drive signal to the following systems to check their operation.
 Oil pressure warning lamp
 Rear window defogger
 Front wiper (LO, HI)
 Parking lamp
 License plate lamp
 Tail lamp
 Side marker lamp
 Front fog lamp
 Headlamp (LO, HI)
 A/C compressor (magnet clutch)
Operation Procedure
CAUTION:
Never perform auto active test in the following conditions.
 Engine is running.
 CONSULT-III is connected.
1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn the ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, pr ess the driver door switch 10 times. Then turn the
ignition switch OFF.
CAUTION:
Close passenger door.
4. Turn the ignition switch ON within 10 seconds. Af ter that the horn sounds once and the auto active test
starts.
CAUTION:
Engine starts when ignition switch is turned ON while brake pedal is depressed.
5. The oil pressure warning lamp starts blinking when the auto active test starts.
6. After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE:
 When auto active test has to be cancelled halfw ay through test, turn the ignition switch OFF.
 When auto active test is not activated, door swit ch may be the cause. Check door switch. Refer to DLK-117,
"ComponentFunctionCheck".
Inspection in Auto Active Test
When auto active test is actuated, the following operation sequence is repeated 3 times.
Operation
sequence Inspection location Operation
1 Oil pressure warning lamp Blinks continuously during operation of auto active test
2 Rear window defogger 10 seconds
3 Front wiper LO for 5 seconds → HI for 5 seconds
4 Parking lamp
 License plate lamp
 Tail lamp
 Side marker lamp
 Front fog lamp 10 seconds
Revision: 2010 May2011 QX56

EXL-38
< ECU DIAGNOSIS INFORMATION >[XENON TYPE]
AFS CONTROL UNIT
Fail-Safe
INFOID:0000000006213918
DTC Fail-safe AFS OFF indicator lamp Cancellation
U1000: CAN COMM CIRCUIT  Right and left swivel motors
stop at the position when DTC
is detected.
 Right and left aiming motors stop at the position when DTC
is detected. Blinks 1 second each. Ignition switch OFF
U1010: CONTROL UNIT (CAN)  Right and left swivel motors
stop at the position when DTC
is detected.
 Right and left aiming motors
stop at the position when DTC
is detected. Blinks 1 second each. Ignition switch OFF
B2503: SWIVEL ACTUATOR [RH]  Right swivel motors stop at the
position when DT C is detected.
 The signal, approximately 2 V
decreased from the levelizer
signal when DT C detected, is
output. Blinks 1 second each. Ignition switch OFF
B2504: SWIVEL ACTUATOR [LH]  Left swivel motors stop at the
position when DT C is detected.
 The signal, approximately 2 V decreased from the levelizer
signal when DT C detected, is
output. Blinks 1 second each. Ignition switch OFF
B2513: HI SEN UNUSUAL [FR]  Right and left aiming motors
stop at the position when DTC
is detected. — Ignition switch OFF
B2514: HI SEN UNUSUAL [RR]  Right and left aiming motors
stop at the position when DTC
is detected. — Ignition switch OFF
C0126: ST ANG SEN SIG  Right and left swivel motor
swivel angle returns to 0 ° and
fixed. Blinks 1 second each. Ignition switch OFF
B2516: SHIFT SIG [P, R]  Right and left swivel motor
swivel angle returns to 0 ° and
fixed. Blinks 1 second each. Ignition switch OFF
B2517: VEHICLE SPEED SIG  Right and left swivel motor
swivel angle returns to 0 ° and
fixed.
 Right and left aiming motors stop at the position when DTC
is detected. Blinks 1 second each. Ignition switch OFF
B2519: LEVELIZER CALIB  Right and left aiming motors
stop at the position when DTC
is detected. —
When the levelizer adjustment is
completed.
C0428: ST ANGLE SEN CALIB  Right and left swivel motor
swivel angle returns to 0 ° and
fixed. Blinks 1 second each.
When the steering angle sensor
neutral position registration is
competed.
B2521: ECU CIRC  Right and left swivel motors
stop at the position when DTC
is detected.
 Right and left aiming motors stop at the position when DTC
is detected. Blinks 1 second each. Ignition switch OFF
Revision: 2010 May2011 QX56

EXL-62
< BASIC INSPECTION >[XENON TYPE]
INSPECTION AND ADJUSTMENT
If “CAN NOT BE TESTED” is indi
cated, AFS control unit detects that the height sensor signal
changes. The levelizer adjustment is cancelled. In this case, turn the ignition switch OFF to pre-
vent the vehicle from the height change. Perform the levelizer adjustment again.
Is the levelizer adjustment completed?
YES >> GO TO 3.
NO >> Perform the levelizer adjustment again.
3.SELF-DIAGNOSIS RESULT CHECK
Perform self-diagnosis with CONSULT-III. Check that any DTC is not detected.
Is any DTC detected?
YES >> GO TO 2.
NO >> Levelizer adjustment completed
Revision: 2010 May2011 QX56

B2503, B2504 SWIVEL ACTUATOREXL-63
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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DTC/CIRCUIT DIAGNOSIS
B2503, B2504 SWIVEL ACTUATOR
DTC LogicINFOID:0000000006213929
DTC DETECTION LOGIC
*: Initialization is not included.
DTC CONFIRMATION PROCEDURE
1.DTC ERASE
Erase the DTC memory of AFS with CONSULT-III.
>> GO TO 2.
2.CONFIRMATION DTC SELECTION
Select “B2503” or “B2504” for confirmation.
Which DTC is confirmation?
B2503 >> GO TO 3.
B2504 >> GO TO 4.
3.DTC CONFIRMATION (B2503)
1. Steer to the straight-forward position.
2. Start the engine.
3. Turn AFS switch ON.
4. Turn the headlamp ON.
5. Shift the selector lever to “N”.
6. Steer to the right. (Rotate it once or more.)
7. Perform the self-diagnosis with CONSULT-III.
Is DTC
“B2503” detected?
YES >> Refer to EXL-64, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
4.DTC CONFIRMATION (B2504)
1. Steer to the straight-forward position.
2. Start the engine.
3. Turn AFS switch ON.
4. Turn the headlamp ON.
5. Drive at 25 km/h (15.5 MPH) or more.
6. Steer to the left. (Rotate it once or more.)
DTC No. Trouble diagnosis name DTC detection condition Possible cause
B2503 Swivel actuator [RH] AFS control unit indicates an applicable DTC when detecting any of the following conditions continuous-
ly for 2 seconds or more.
 AFS control unit-recognized swivel position differs extremely from the swivel position sensor-input
value while the swivel operating.
*
 The swivel position sensor signal does not change even though AFS control unit transmits the swivel
motor driving signal while the swivel operating
*.
 The swivel motor short and open is detected while
the swivel operating
*.
 The swivel position sensor power supply is 6 V or more, or 4 V or less.
 The swivel position sensor signal is 0.25 V or less, or 4.75 V or more. Swivel position sensor
 Swivel position sensor
 Harness and connector
 AFS control unit
Swivel motor
Swivel motor
 Harness and connector
 AFS control unit
B2504 Swivel actuator [LH]
Revision: 2010 May2011 QX56

EXL-64
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
B2503, B2504 SWIVEL ACTUATOR
7. Stop the vehicle.
8. Perform the self-diagnosis with CONSULT-III.
Is DTC
“B2504” detected?
YES >> Refer to
EXL-64, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006213930
1.CHECK SWIVEL POSITION SENSOR SIGNAL INPUT
1. Turn ignition switch ON.
2. Check voltage between AFS control unit harness connector and ground.
Is the measurement value within the standard value?
YES >> GO TO 2.
Less than the standard value >>GO TO 6.
Higher than the standard value>>GO TO 9.
2.CHECK SWIVEL MOTOR
Check swivel motor. EXL-67, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace front combination lamp.
3.CHECK SWIVEL MOTOR OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and headlamp swivel actuator connector.
3. Check continuity between AFS control unit har ness connector and headlamp swivel actuator harness
connector.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harnesses.
4.CHECK SWIVEL MOTOR SHORT CIRCUIT
Check continuity between AFS c ontrol unit harness connector and ground.
(+)
(− ) Vo l ta g e
(Approx.)
AFS control unit
Connector Terminal
RH M135 9
Ground 0.25 - 4.75 V
LH 29
AFS control unit Headlamp swivel
actuator Continuity
Connector Terminal Connector Terminal
RH M135 11
E123 8
Existed
13 7
32 3
34 4
LH 15
E122 3
17 4
36 8
38 7
Revision: 2010 May2011 QX56

EXL-66
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
B2503, B2504 SWIVEL ACTUATOR
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 8.
7.CHECK SWIVEL POSITION SENSOR SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit har ness connector and headlamp swivel actuator harness
connector.
4. Check continuity between AFS control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace front combination lamp.
NO >> Repair or replace harnesses.
8.CHECK SWIVEL POSITION SE NSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit har ness connector and headlamp swivel actuator harness
connector.
4. 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 harnesses.
9.CHECK SWIVEL POSITION SENSOR GROUND CIRCUIT VOLTAGE OUTPUT
Check voltage between AFS control unit harness connector and ground.
AFS control unit Headlamp swivel actuator Continuity
Connector Terminal Connector Terminal
RH M135 9E123
1 Existed
LH 29 E122
AFS control unit GroundContinuity
Connector Terminal
RH M135 9
Not existed
LH 29
AFS control unit Headlamp swivel actuator Continuity
Connector Terminal Connector Terminal
RH M135 4E123
2 Existed
LH 24 E122
AFS control unit GroundContinuity
Connector Terminal
RH M135 4
Not existed
LH 24
(+)
(− ) Vo l ta g e
(Approx.)
AFS control unit
Connector Terminal
RH M135 2
Ground 0 V
LH 27
Revision: 2010 May2011 QX56

EXL-68
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
B2513 HEIGHT SENSOR UNUSUAL [FR]
B2513 HEIGHT SENSOR UNUSUAL [FR]
DTC LogicINFOID:0000000006213932
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DTC ERASE
Erase the DTC memory of AFS with CONSULT-III.
>> GO TO 2.
2.DTC CONFIRMATION
1. Start the engine.
2. Turn the headlamp ON.
3. Select the self-diagnosis with CONSULT-III.
4. Check the self-diagnosis result. Refer to EXL-39, "
DTC Index".
Is DTC
“B2513” detected?
YES >> Refer to EXL-68, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006213933
1.CHECK HEIGHT SENSOR SIGNAL INPUT
1. Turn ignition switch ON.
2. Check voltage between AFS control unit harness connector and ground.
Is the measurement value within the standard value?
YES >> Replace AFS control unit. Refer to EXL-135, "Removal and Installation"
Less than the standard value >>GO TO 2.
Higher than the standard value>>GO TO 5.
2.CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT INPUT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect front height sensor connector.
3. Turn ignition switch ON.
4. Check voltage between front height sensor harness connector and ground.
DTC No. Trouble diagnosis name DTC detection condition Possible cause
B2513 Height sensor unusual [FR] An applicable DTC is indicated when any of the
following conditions is detected continuously
for 2 seconds or more.
 The front height sensor power supply is 6 V
or more, or 4 V or less.
 The front height sensor signal is 0.25 V or less, or 4.75 V or more. Front height sensor
 Front height sensor
 Harness and connector
 AFS control unit
(+)
(− ) Vo l ta g e
(Approx.)
AFS control unit
Connector Terminal M135 23 Ground 0.25 - 4.75 V
(+) (− ) Vo l ta g e
(Approx.)
Front height sensor
Connector Terminal E208 1 Ground 5 V
Revision: 2010 May2011 QX56

B2513 HEIGHT SENSOR UNUSUAL [FR]EXL-69
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 4.
3.CHECK HEIGHT SENSOR SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit harnes s connector and front height sensor harness connector.
4. Check continuity between AFS control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace front height sensor. Refer to EXL-136, "Removal and Installation".
NO >> Repair or replace harness.
4.CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit harnes s connector and front height sensor harness connector.
4. 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.
5.CHECK HEIGHT SENSOR GROUND CIRCUIT VOLTAGE OUTPUT
Check voltage between AFS control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace AFS control unit. Refer to EXL-135, "
Removal and Installation"
6.CHECK HEIGHT SENSOR GROUND OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connecto r and front height sensor connector.
3. Check continuity between AFS control unit harnes s connector and front height sensor harness connector.
AFS control unit Front height sensor
Continuity
Connector Terminal Connector Terminal
M135 23 E208 2 Existed
AFS control unit GroundContinuity
Connector Terminal
M135 23 Not existed
AFS control unit Front height sensor Continuity
Connector Terminal Connector Terminal
M135 5 E208 1 Existed
AFS control unit GroundContinuity
Connector Terminal
M135 5 Not existed
(+) (− ) Vol tag e
(Approx.)
AFS control unit
Connector Terminal M135 10 Ground 0 V
Revision: 2010 May2011 QX56

B2514 HEIGHT SENSOR UNUSUAL [RR]EXL-71
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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B2514 HEIGHT SENSOR UNUSUAL [RR]
DTC LogicINFOID:0000000006213934
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DTC ERASE
Erase the DTC memory of AFS with CONSULT-III.
>> GO TO 2.
2.DTC CONFIRMATION
1. Start the engine.
2. Turn the headlamp ON.
3. Select the self-diagnos is with CONSULT-III.
4. Check the self-diagnosis result. Refer to EXL-39, "
DTC Index".
Is DTC
“B2514” detected?
YES >> Refer to EXL-71, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006213935
1.CHECK HEIGHT SENSOR SIGNAL INPUT
1. Turn ignition switch ON.
2. Check voltage between AFS cont rol unit harness connector and ground.
Is the measurement value within the standard value?
YES >> Replace AFS control unit. Refer to EXL-135, "Removal and Installation"
Less than the standard value >>GO TO 2.
Higher than the standard value>>GO TO 5.
2.CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT INPUT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect rear height sensor connector.
3. Turn ignition switch ON.
4. Check voltage between rear height sensor harness connector and ground.
DTC No. Trouble diagnosis name DTC detection condition Possible cause
B2514 Height sensor unusual [RR] An applicable DTC is indicated when any of the fol-
lowing conditions is detected continuously for 2
seconds or more.
 The rear height sensor power supply is 6 V or
more, or 4 V or less.
 The rear height sensor signal is 0.25 V or less, or 4.75 V or more. Rear height sensor
 Rear height sensor
 Harness and connector
 AFS control unit
(+)
(− ) Vol tag e
(Approx.)
AFS control unit
Connector Terminal M135 28 Ground 0.25 - 4.75 V
(+) (− ) Vol tag e
(Approx.)
Rear height sensor
Connector Terminal C15 1 Ground 5 V
Revision: 2010 May2011 QX56

EXL-72
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
B2514 HEIGHT SENSOR UNUSUAL [RR]
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 4.
3.CHECK HEIGHT SENSOR SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit harne ss connector and rear height sensor harness connector.
4. Check continuity between AFS control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace rear height sensor. Refer to EXL-136, "Removal and Installation".
NO >> Repair or replace harness.
4.CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit harne ss connector and rear height sensor harness connector.
4. 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.
5.CHECK HEIGHT SENSOR GROUND CIRCUIT VOLTAGE OUTPUT
Check voltage between AFS control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace AFS control unit. Refer to EXL-135, "
Removal and Installation"
6.CHECK HEIGHT SENSOR GROUND OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and rear height sensor connector.
3. Check continuity between AFS control unit harne ss connector and rear height sensor harness connector.
AFS control unit Rear height sensor
Continuity
Connector Terminal Connector Terminal
M135 28 C15 2 Existed
AFS control unit GroundContinuity
Connector Terminal
M135 28 Not existed
AFS control unit Rear height sensor Continuity
Connector Terminal Connector Terminal
M135 6 C15 1 Existed
AFS control unit GroundContinuity
Connector Terminal
M135 6 Not existed
(+) (− ) Vo l ta g e
(Approx.)
AFS control unit
Connector Terminal M135 8 Ground 0 V
Revision: 2010 May2011 QX56