INFINITI QX56 2011 Factory Service Manual

DAS-506
< DTC/CIRCUIT DIAGNOSIS >[BSW]
U1507 LOST COMM(SIDE RDR R)
U1507 LOST COMM(SIDE RDR R)
DTC LogicINFOID:0000000006223947
DTC DETECTION LOGIC
NOTE:
DTC “U1507” is detected along with DTC “U1000”, first diagnose the DTC “U1507”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U1507” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1507” detected as the current malfunction?
YES >> Refer to DAS-506, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223948
1.CHECK RIGHT/LEFT SWITCHING SIGNAL CIRCUIT
Check right/left switching signal circuit. Refer to DAS-514, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic".
NO >> Repair right/left switching signal circuit.
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1507 (154) LOST COMM(SIDE
RDR R) ADAS control unit cannot receive ITS commu-
nication signal from side radar RH for 2 sec-
onds or more  Side radar RH right/left switching sig-
nal circuit
 ITS communication system
 Side radar RH
Revision: 2010 May2011 QX56

DAS
U1508 LOST COMM(SIDE RDR L)DAS-507
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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U1508 LOST COMM(SIDE RDR L)
DTC LogicINFOID:0000000006223949
DTC DETECTION LOGIC
NOTE:
DTC “U1508” is detected along with DTC “U1000”, first diagnose the DTC “U1508”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U1508” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1508” detected as the current malfunction?
YES >> Refer to DAS-507, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223950
1.CHECK SIDE RADAR HARNESS CONNECTOR
1. Turn the ignition switch OFF.
2. Check the terminals and connectors of the side r adar LH for damage, bend and short (unit side and con-
nector side).
Is the inspection result normal?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to LAN-18, "
Trouble Diagnosis Flow Chart".
NO >> Repair the terminal or connector.
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1508 (155) LOST COMM(SIDE
RDR L) ADAS control unit cannot receive ITS commu-
nication signal from side radar LH for 2 sec-
onds or more  Side radar LH harness connector
 ITS communication system
 Side radar LH
Revision: 2010 May2011 QX56

DAS-508
< DTC/CIRCUIT DIAGNOSIS >[BSW]
U1513 METER CAN 3
U1513 METER CAN 3
DTC LogicINFOID:0000000006228286
DTC DETECTION LOGIC
NOTE:
If DTC “U1513” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-486,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U1513” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1513” detected as the current malfunction?
YES >> Refer to DAS-508, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228287
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “U1513” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK COMBINATION METER SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “S elf Diagnostic Result” of “METER/M&A”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
MWI-43, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1513 (163) METER CAN CIRC 3 ADAS control unit detects an error signal that is
received from combination meter via CAN
communication
Combination meter
Revision: 2010 May2011 QX56

DAS
U1514 STRG SEN CAN 3DAS-509
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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U1514 STRG SEN CAN 3
DTC LogicINFOID:0000000006228288
DTC DETECTION LOGIC
NOTE:
If DTC “U1514” is detected along with DTC “U 1000”, first diagnose the DTC “U1000”. Refer to DAS-486,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U1514” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1514” detected as the current malfunction?
YES >> Refer to DAS-509, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228289
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U1514” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (C ONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-51, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1514 (165) STRG SEN CAN CIRC 3 ADAS control unit detects an error signal that is
received from steering angle sensor via CAN
communication
Steering angle sensor
Revision: 2010 May2011 QX56

DAS-510
< DTC/CIRCUIT DIAGNOSIS >[BSW]
U1518 SIDE RDR L CAN 3
U1518 SIDE RDR L CAN 3
DTC LogicINFOID:0000000006223955
DTC DETECTION LOGIC
NOTE:
If DTC “U1518” is detected along with DTC “U1000”,
or “U1508”, first diagnose the DTC “U1000” or “U1508”.
 Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic" for DTC “U1000”.
 Refer to DAS-507, "
DTC Logic" for DTC “U1508”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U1518” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1518” detected as the current malfunction?
YES >> Refer to DAS-510, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223956
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” or “U1508” is detected other than “U1518” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” or “U1508” detected?
YES-1 >> U1000 detected: Perform the CAN communication system inspection. Repair or replace the mal-
functioning parts. Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic".
YES-2 >> U1508 detected: Refer to DAS-507, "
DTC Logic".
NO >> GO TO 2.
2.CHECK SIDE RADAR LH SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “SIDE RADAR LEFT”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-445, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1518 (168) SIDE RDR L CAN CIRC 3
ADAS control unit detects an error signal that is re-
ceived from side radar LH via ITS communication Side radar LH
Revision: 2010 May2011 QX56

DAS
U1519 SIDE RDR R CAN 3DAS-511
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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U1519 SIDE RDR R CAN 3
DTC LogicINFOID:0000000006223957
DTC DETECTION LOGIC
NOTE:
If DTC “U1519” is detected along with DTC “U1000”, or “U1507”, first diagnose the DTC “U1000” or “U1507”.
 Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic" for DTC “U1000”.
 Refer to DAS-506, "
DTC Logic" for DTC “U1507”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U1519” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1519” detected as the current malfunction?
YES >> Refer to DAS-511, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223958
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” or “U1507” is detected other than “U1519” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” or “U1507” detected?
YES-1 >> U1000 detected: Perform the CAN communication system inspection. Repair or replace the mal-
functioning parts. Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic".
YES-2 >> U1507 detected: Refer to DAS-506, "
DTC Logic".
NO >> GO TO 2.
2.CHECK SIDE RADAR RH SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “SIDE RADAR RIGHT”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-447, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1519 (169) SIDE RDR R CAN CIRC 3
ADAS control unit detects an error signal that is re-
ceived from side radar RH via ITS communication Side radar RH
Revision: 2010 May2011 QX56

DAS-512
< DTC/CIRCUIT DIAGNOSIS >[BSW]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
ADAS CONTROL UNIT
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006223967
1.CHECK ADAS CONTROL UNIT POWER SUPPLY CIRCUIT
Check voltage between ADAS control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the ADAS control unit power supply circuit.
2.CHECK ADAS CONTROL UNIT GROUND CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect the ADAS control unit connector.
3. Check for continuity between ADAS control unit harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair the ADAS control unit ground circuit.
SIDE RADAR LH
SIDE RADAR LH : Diagnosis ProcedureINFOID:0000000006223968
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the side radar LH connector.
3. Check voltage between side radar LH harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the side radar LH power supply circuit.
2.CHECK GROUND CIRCUIT
Check continuity between side radar LH harness connectors and ground.
Te r m i n a l Condition
Voltag e
(Approx.)
(+) (–)
ADAS control unit
GroundIgnition
switch
Connector Terminal
B61 16 OFF 0 V
ON Battery volt-
age
ADAS control unit
GroundContinuity
Connector Terminal
B61 6 Existed
Te r m i n a l s Condition
Vo l ta g e
(Approx.)
(+) (
−)
Side radar LH
GroundIgnition switch
Connector Terminal
B74 5 OFF 0 V
ON Battery voltage
Revision: 2010 May2011 QX56

DAS
POWER SUPPLY AND GROUND CIRCUITDAS-513
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair the side radar LH ground circuit.
SIDE RADAR RH
SIDE RADAR RH : Diagnosis ProcedureINFOID:0000000006223969
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the side radar RH connector.
3. Check voltage between side radar RH harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the side radar RH power supply circuit.
2.CHECK GROUND CIRCUIT
Check continuity between side r adar RH harness connectors and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair the side radar RH ground circuit.
Side radar LH GroundContinuity
Connector Terminal
B74 2 Existed
Te r m i n a l s Condition
Vo l ta g e
(Approx.)
(+) (
−)
Side radar RH
GroundIgnition switch
Connector Terminal
B243 5 OFF 0 V
ON Battery voltage
Side radar RH GroundContinuity
Connector Terminal
B243 2 Existed
Revision: 2010 May2011 QX56

DAS-514
< DTC/CIRCUIT DIAGNOSIS >[BSW]
RIGHT/LEFT SWITCHING SIGNAL CIRCUIT
RIGHT/LEFT SWITCHING SIGNAL CIRCUIT
Diagnosis ProcedureINFOID:0000000006223970
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Check the terminals and connectors of the side radar RH for damage, bend and short (unit side and con-
nector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal or connector.
2.CHECK CONTINUITY RIGHT/LEFT SWITCHING SIGNAL CIRCUIT
1. Disconnect side radar RH connector.
2. Check continuity between side radar RH harness connectors and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
Side radar RH
GroundContinuity
Connector Terminal
B243 1 Existed
Revision: 2010 May2011 QX56

DAS
WARNING SYSTEMS SWITCH CIRCUITDAS-515
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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WARNING SYSTEMS SWITCH CIRCUIT
Component Function CheckINFOID:0000000006223971
1.CHECK WARNING SYSTEMS SWITCH INPUT SIGNAL
1. Turn the ignition switch ON.
2. Select the DATA MONITOR item “WARN SYS SW” of “ICC/ADAS” with CONSULT-III.
3. With operating the warning systems switch, check the monitor status.
Is the inspection result normal?
YES >> Warning systems switch circuit is normal.
NO >> Refer to DAS-389, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006223972
1.CHECK WARNING SYSTEMS SWITCH SIGNAL INPUT
1. Turn the ignition switch ON.
2. Check voltage between ADAS control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> GO TO 2.
2.CHECK WARNING SYSTEMS SWITCH
1. Turn ignition switch OFF.
2. Remove warning systems switch.
3. Check warning systems switch. Refer to DAS-390, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace the warning systems switch. Refer to DAS-404, "
Removal and Installation".
3.CHECK WARNING SYSTEMS SWITCH GROUND CIRCUIT
Check continuity between twin switch harness connector terminal and the ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair harness or connector.
4.CHECK WARNING SYSTEM S SWITCH SIGNAL INPUT CIRCUIT FOR OPEN
1. Disconnect the ADAS control unit connector.
Monitor item Condition Monitor status
WARN SYS
SW Warning systems switch is pressed On
Warning systems switch is not pressed OFF
Te r m i n a l s
Condition
Vo l ta g e
(Approx.)
(+) (
−)
ADAS control unit
GroundWarning
systems switch
Connector Terminal
B61 1 Pressed 0 V
Released 12 V
Twin switch GroundContinuity
Connector Terminal
M127 3 Existed
Revision: 2010 May2011 QX56