2011 INFINITI QX56 engine

DAS-356
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
C1A15 GEAR POSITION
C1A15 GEAR POSITION
DescriptionINFOID:0000000006228197
ADAS control unit judges the gear pos
ition based on the following signals.
 Current gear position signal transmitt ed from TCM via CAN communication.
 Value of gear ratio calculated from input speed signal transmitted from TCM via CAN communication.
 Value of gear ratio calculated from the vehicle speed signal transmitted from ABS actuator and electric unit
(control unit) via CAN communication.
DTC LogicINFOID:0000000006228198
DTC DETECTION LOGIC
NOTE:
If DTC “C1A15” is detected along with DTC “U1000”, “C1A03”, or “C1A04”, first diagnose the DTC “U1000”,
“C1A03”, or “C1A04”.
 Refer to DAS-374, "
ADAS CONTROL UNIT : DTC Logic" for DTC “U1000”.
 Refer to DAS-347, "
DTC Logic" for DTC “C1A03”.
 Refer to DAS-348, "
DTC Logic" for DTC “C1A04”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the LDP system ON.
3. Drive the vehicle at 10 km/h (6 MPH) or faster for approximately 15 minutes or more.
CAUTION:
Always drive safely.
4. Stop the vehicle.
5. Perform “All DTC Reading” with CONSULT-III.
6. Check if “C1A15” is detected as the current malf unction in the “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A15” detected as the current malfunction?
YES >> Refer to DAS-356, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228199
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A03”, “C1A04”, or “U1000” is detected ot her than “C1A15” in “Self Diagnostic Result” of “ICC/
ADAS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-310, "
DTC Index".
NO >> GO TO 2.
2.CHECK VEHICLE SPEED SIGNAL
Check that “VHCL SPEED SE” operates norma lly in “DATA MONITOR” of “ICC/ADAS”.
CAUTION:
Be careful of the vehicle speed.
Is the inspection result normal?
DTC
(On board dis- play) Trouble diagnosis
name DTC detecting condition Possible causes
C1A15 (15) GEAR POSITION A mismatch between an current gear posi-
tion signal transmitted from TCM via CAN
communication and a gear position calculat-
ed by the ADAS control unit continues for
approximately 11 minutes or more  Input speed sensor
 Vehicle speed sensor A/T (output speed
sensor)
TCM
Revision: 2010 May2011 QX56

DAS-358
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
C1A24 NP RANGE
C1A24 NP RANGE
DTC LogicINFOID:0000000006228200
DTC DETECTION LOGIC
NOTE:
If DTC “C1A24” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-374,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.CHECK DTC REPRODUCE (1)
1. Start the engine.
2. Turn the LDP system ON.
3. Wait for approximately 5 minutes or more afte r shifting the selector lever to “P” position.
4. Perform “All DTC Reading” with CONSULT-III.
5. Check if the “C1A24” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A24” detected as the current malfunction?
YES >> Refer to DAS-358, "Diagnosis Procedure".
NO >> GO TO 2.
2.CHECK DTC REPRODUCE (2)
1. Wait for approximately 5 minutes or more after shifting the selector lever to “N” position.
2. Perform “All DTC Reading”.
3. Check if the “C1A24” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A24” detected as the current malfunction?
YES >> Refer to DAS-358, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228201
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1A24” 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-374, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK NP POSITION SWITCH SIGNAL
Check that “NP RANGE SW” operates normally in “DATA MONITOR” of “ICC/ADAS”.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
3.CHECK TCM DATA MONITOR
Check that “SLCT LVR POSI” operates normally in “DATA MONITOR” of “TRANSMISSION”.
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> GO TO 4.
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
C1A24 (24) NP RANGE A mismatch between a shift position signal
transmitted from TCM via CAN communica-
tion and an current gear position signal contin-
ues for 60 seconds or more TCM
 Transmission range switch
Revision: 2010 May2011 QX56

DAS-360
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
C1A50 ADAS CONTROL UNIT
C1A50 ADAS CONTROL UNIT
DTC LogicINFOID:0000000006223761
DTC DETECTION LOGIC
NOTE:
If DTC “C1A50” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-374,
"ADAS CONTROL UNIT : DTC Logic".
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the LDP system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “C1A50” is detected as the current malfunction in “Self Diagnostic Result” of “LANE CAM-
ERA”.
Is
“C1A50” detected as the current malfunction?
YES >> Refer to DAS-360, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223762
1.CHECK LANE CAMERA UNIT SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A50” in “Self Diagnostic Result” of “LANE CAMERA”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-374, "
LANE CAMERA UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ADAS CONTROL UNIT SE LF-DIAGNOSIS RESULTS
Check if any DTC is detected in “S elf Diagnostic Result” of “ICC/ADAS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-310, "
DTC Index".
NO >> Replace the lane camera unit. Refer to DAS-403, "
Removal and Installation".
DTC Trouble diagnosis name DTC detecting condition Possible cause
C1A50 ADAS MALFUNCTION If ADAS control unit is malfunctioning ADAS control unit
Revision: 2010 May2011 QX56

DAS
C1B00 CAMERA UNIT MALFDAS-361
< DTC/CIRCUIT DIAGNOSIS > [LDW & LDP]
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C1B00 CAMERA UNIT MALF
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DTC LogicINFOID:0000000006223763
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Perform “All DTC Readi ng” with CONSULT-III.
3. Check if the “C1B00” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1B00” detected as the current malfunction?
YES >> Refer to DAS-361, "ADAS CONTROL UNIT : Diagnosis Procedure".
NO >> INSPECTION END
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006223764
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “C1B00” is detected in “Sel f Diagnostic Result” of “LANE CAMERA”.
Is
“C1B00” detected?
YES >> Refer to DAS-361, "LANE CAMERA UNIT : DTC Logic"
NO >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
LANE CAMERA UNIT
LANE CAMERA UNIT : DTC LogicINFOID:0000000006223765
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Perform “All DTC Readi ng” with CONSULT-III.
3. Check if the “C1B00” is detected as the current malfunction in “Self Diagnostic Result” of “LANE CAM-
ERA”.
Is
“C1B00” detected as the current malfunction?
YES >> Refer to DAS-361, "ADAS CONTROL UNIT : Diagnosis Procedure".
NO >> INSPECTION END
LANE CAMERA UNIT : Diagnosis ProcedureINFOID:0000000006223766
1.CHECK SELF-DIAGNOSIS RESULTS
Check if any DTC other than “C1B00” is detect ed in “Self Diagnostic Result” of “LANE CAMERA”.
Is any DTC detected?
DTC
(On board
display) Trouble diagnosis name DTC detecting condition Possible causes
C1B00 (81) CAMERA UNIT MALF If lane camera unit is malfunctioning Lane camera unit
DTC Trouble diagnosis name DTC detecting condition Possible causes
C1B00 CAMERA UNIT MALF If lane camera unit is malfunctioning Lane camera unit
Revision: 2010 May2011 QX56

DAS
C1B01 CAM AIMING INCMPDAS-363
< DTC/CIRCUIT DIAGNOSIS > [LDW & LDP]
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C1B01 CAM AIMING INCMP
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DTC LogicINFOID:0000000006223767
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Operate the LDP system and drive. CAUTION:
Always drive safely.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “C1B01” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1B01” detected as the current malfunction?
YES >> Refer to DAS-363, "ADAS CONTROL UNIT : Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006223768
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “C1B01” is detected in “Sel f Diagnostic Result” of “LANE CAMERA”.
Is
“C1B01” detected?
YES >> Refer to DAS-363, "LANE CAMERA UNIT : DTC Logic"
NO >> GO TO 2.
2.CHECK DATA MONITOR
1. Start the engine.
2. Check that “OK” is indicated for the value of “AIMING RESULT” in “DATA MONITOR” of “LANE CAM-
ERA”.
Is
“OK” indicated?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> Replace the lane camera unit. Refer to DAS-403, "
Removal and Installation".
LANE CAMERA UNIT
LANE CAMERA UNIT : DTC LogicINFOID:0000000006223769
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
DTC
(On board
display) Trouble diagnosis name DTC detecting condition Possible causes
C1B01 (82) CAM AIMING INCMP Camera ai
ming is not completed Lane camera aiming is not ad-
justed
 Lane camera aiming adjustment
has been interrupted
DTC Trouble diagnosis name DTC detecting condition Possible causes
C1B01 CAM AIMING I NCMP Camera aiming is not completed  Lane camera aiming is not ad-
justed
 Lane camera aiming adjustment has been interrupted
Revision: 2010 May2011 QX56

DAS-364
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
C1B01 CAM AIMING INCMP
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Perform “All DTC Reading” with CONSULT-III.
3. Check if the “C1B01” is detected as the current malfunction in “Self Diagnostic Result” of “LANE CAM-
ERA”.
Is
“C1B01” detected as the current malfunction?
YES >> Refer to DAS-364, "LANE CAMERA UNIT : Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
LANE CAMERA UNIT : Diagnosis ProcedureINFOID:0000000006223770
1.CAMERA AIMING ADJUSTMENT
1. Perform the camera aiming. Refer to DAS-340, "
Description".
2. Erase all self-diagnosis results with CONSULT-III.
3. Perform “All DTC Reading”.
4. Check if the “C1B01” is detected in “Self Diagnostic Result” of “LANE CAMERA”.
Is
“C1B01” detected?
YES >> Replace the lane camera unit. Refer to DAS-403, "Removal and Installation".
NO >> INSPECTION END
Revision: 2010 May2011 QX56

DAS-366
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
U0104 ADAS CAN 1
U0104 ADAS CAN 1
DTC LogicINFOID:0000000006223775
DTC DETECTION LOGIC
NOTE:
If DTC “U0104” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-374,
"LANE CAMERA UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the LDP system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U0104” is detected as the current malfunction in “Self Diagnostic Result” of “LANE CAM-
ERA”.
Is
“U0104” detected as the current malfunction?
YES >> Refer to DAS-366, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223776
1.CHECK LANE CAMERA UNIT SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “U0104” in “Self Diagnostic Result” of “LANE CAMERA”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-374, "
LANE CAMERA UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ADAS CONTROL UNIT SE LF-DIAGNOSIS RESULTS
Check if any DTC is detected in “S elf Diagnostic Result” of “ICC/ADAS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-310, "
DTC Index".
NO >> Replace the lane camera unit. Refer to DAS-403, "
Removal and Installation".
DTC Trouble diagnosis name DTC detecting condition Possible causes
U0104 ADAS CAN CIR 1 If lane camera unit detects an error signal that
is received from ADAS control unit via ITS
communication ADAS control unit
Revision: 2010 May2011 QX56

DAS
U0121 VDC CAN 2DAS-367
< DTC/CIRCUIT DIAGNOSIS > [LDW & LDP]
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U0121 VDC CAN 2
DTC LogicINFOID:0000000006228202
DTC DETECTION LOGIC
NOTE:
If DTC “U0121” is detected along with DTC “U 1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the LDP system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U0121” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U0121” detected as the current malfunction?
YES >> Refer to DAS-367, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228203
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U0121” 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-374, "
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
U0121 (127) VDC CAN CIR2 If ADAS control unit detects an error signal
that is received from
ABS actuator and electric
unit (control unit) via CAN communication ABS actuator and electric unit (control
unit)
Revision: 2010 May2011 QX56