Infiniti QX56 (Z62). Manual — part 222

CCS

U1515 ICC SENSOR CAN 3

CCS-155

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

C

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A

U1515 ICC SENSOR CAN 3

DTC Logic

INFOID:0000000006224432

DTC DETECTION LOGIC

NOTE:
If DTC “U1515” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to

CCS-145,

"ADAS CONTROL UNIT : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn the MAIN switch of ICC system ON.

3.

Perform “All DTC Reading” with CONSULT-III.

4.

Check if the “U1515” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “U1515” detected as the current malfunction?

YES

>> Refer to

CCS-155, "Diagnosis Procedure"

.

NO

>> Refer to

GI-40, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000006224433

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “U1515” in “Self Diagnostic Result” of “ICC/ADAS”.

Is “U1000” detected?

YES

>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.

Refer to

CCS-145, "ADAS CONTROL UNIT : DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS

Check if any DTC is detected in “Self Diagnostic Result” of “LASER”.

Is any DTC detected?

YES

>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to

CCS-55, "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

U1515

(165)

ICC SENSOR CAN
CIRC 3

ADAS control unit detects an error signal that is
received from ICC sensor via CAN communi-
cation

ICC sensor

CCS-156

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

U1517 ACCELERATOR PEDAL ACTUATOR CAN 3

U1517 ACCELERATOR PEDAL ACTUATOR CAN 3

DTC Logic

INFOID:0000000006224434

DTC DETECTION LOGIC

NOTE:
If DTC “U1517” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to

CCS-145,

"ADAS CONTROL UNIT : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn the MAIN switch of ICC system ON.

3.

Perform “All DTC Reading” with CONSULT-III.

4.

Check if the “U1517” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “U1517” detected as the current malfunction?

YES

>> Refer to

CCS-156, "Diagnosis Procedure"

.

NO

>> Refer to

GI-40, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000006224435

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “U1517” in “Self Diagnostic Result” of “ICC/ADAS”.

Is “U1000” detected?

YES

>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.

Refer to

CCS-145, "ADAS CONTROL UNIT : DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK ACCELERATOR PEDAL ACTUATOR SELF-DIAGNOSIS RESULTS

Check if any DTC is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”.

Is any DTC detected?

YES

>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to

DAS-108, "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

U1517

(167)

APA CAN CIRC 3

ADAS control unit detects an error signal that is
received from accelerator pedal actuator via
CAN communication

Accelerator pedal actuator

CCS

U1520 4WD CAN 3

CCS-157

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

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U1520 4WD CAN 3

DTC Logic

INFOID:0000000006224436

DTC DETECTION LOGIC

NOTE:
If DTC “U1520” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to

CCS-145,

"ADAS CONTROL UNIT : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn the MAIN switch of ICC system ON.

3.

Perform “All DTC Reading” with CONSULT-III.

4.

Check if the “U1520” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “U1520” detected as the current malfunction?

YES

>> Refer to

CCS-157, "Diagnosis Procedure"

.

NO

>> Refer to

GI-40, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000006224437

1.

CHECK SELF-DIAGNOSIS RESULTS

Check if “U1000” is detected other than “U1520” in “Self Diagnostic Result” of “ICC/ADAS”.

Is “U1000” detected?

YES

>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.

Refer to

CCS-145, "ADAS CONTROL UNIT : DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK TRANSFER CONTROL UNIT SELF-DIAGNOSIS RESULTS

Check if any DTC is detected in “Self Diagnostic Result” of “ALL MODE AWD/4WD”.

Is any DTC detected?

YES

>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to

DLN-29, "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

U1520

(176)

4WD CAN CIRC 3

ADAS control unit detects an error signal that is
received from transfer control unit via CAN
communication

Transfer control unit

CCS-158

< DTC/CIRCUIT DIAGNOSIS >

[ICC]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

ADAS CONTROL UNIT

ADAS CONTROL UNIT : Diagnosis Procedure

INFOID:0000000006228002

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.

ICC SENSOR

ICC SENSOR : Diagnosis Procedure

INFOID:0000000006224439

1.

CHECK ICC SENSOR POWER SUPPLY CIRCUIT

Check voltage between ICC sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the ICC sensor power supply circuit.

2.

CHECK ICC SENSOR GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the ICC sensor connector.

Terminal

Condition

Voltage

(Approx.)

(+)

(–)

ADAS control unit

Ground

Ignition

switch

Connector

Terminal

B61

16

OFF

0 V

ON

Battery volt-

age

ADAS control unit

Ground

Continuity

Connector

Terminal

B61

6

Existed

Terminal

Condition

Voltage

(Approx.)

(+)

(–)

ICC sensor

Ground

Ignition

switch

Connector

Terminal

E65

1

OFF

0 V

ON

Battery volt-

age