Infiniti QX56 (Z62). Manual — part 278

DAS

C1A15 GEAR POSITION

DAS-149

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

YES

>> GO TO 3.

NO

>> GO TO 7.

3.

CHECK GEAR POSITION

Check that “GEAR” operates normally in “DATA MONITOR” of “ICC/ADAS”.

CAUTION:

Be careful of the vehicle speed.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK GEAR POSITION SIGNAL

Check that “GEAR” operates normally in “DATA MONITOR” of “TRANSMISSION”.
Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 6.

5.

CHECK INPUT SPEED SENSOR SIGNAL

Check that “INPUT SPEED” 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 6.

6.

CHECK TCM SELF-DIAGNOSIS RESULTS

1.

Perform “All DTC Reading”.

2.

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

Is any DTC detected?

YES

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

TM-78, "DTC Index"

.

NO

>> Replace the ADAS control unit. Refer to

DAS-63, "Removal and Installation"

.

7.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS

1.

Perform “All DTC Reading”.

2.

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"

.

DAS-150

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C1A16 RADAR STAIN

C1A16 RADAR STAIN

DTC Logic

INFOID:0000000006228084

DTC DETECTION LOGIC

NOTE:
DTC “C1A16” may be detected under the following conditions. (Explain to the customer about the difference
between the contamination detection function and the indication when the malfunction is detected and tell
them “This is not malfunction”.)
• When contamination or foreign materials adhere to the ICC sensor body window
• When driving while it is snowing or when frost forms on the ICC sensor body window
• When ICC sensor body window is temporarily fogged

Diagnosis Procedure

INFOID:0000000006228085

1.

CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS

1.

Perform “All DTC Reading” with CONSULT-III.

2.

Check if the “C1A16” is detected as the current malfunction in “Self Diagnostic Result” of “LASER”.

Is “C1A16”detected?

YES

>> Refer to

CCS-106, "ICC SENSOR : DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS

1.

Erase All self-diagnosis results with CONSULT-III.

2.

Perform “All DTC Reading”

3.

Check if the “C1A16” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “C1A16”detected?

YES

>> Replace ADAS control unit. Refer to

DAS-63, "Removal and Installation"

.

NO

>> INSPECTION END

DTC

(On board dis-

play)

Trouble diagnosis

name

DTC detecting condition

Possible causes

C1A16

(16)

RADAR STAIN

If any stain occurs to ICC sensor body window

• Stain or foreign materials is deposit-

ed

• Cracks or scratches exist

DAS

C1A17 ICC SENSOR

DAS-151

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

C1A17 ICC SENSOR

DTC Logic

INFOID:0000000006228086

DTC DETECTION LOGIC

NOTE:
If DTC “C1A17” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to

DAS-182,

"ADAS CONTROL UNIT : DTC Logic"

.

Diagnosis Procedure

INFOID:0000000006228087

1.

CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS

1.

Perform “All DTC Reading” with CONSULT-III.

2.

Check if “U1000” is detected other than “C1A17” in “Self Diagnostic Result” of “ICC/ADAS”.

Is “U1000”detected?

YES

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

DAS-151, "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 ADAS control unit. Refer to

DAS-63, "Removal and Installation"

.

DTC

(On board dis-

play)

Trouble diagnosis

name

DTC detecting condition

Possible causes

C1A17

(17)

ICC SENSOR MALF

If ICC sensor is malfunctioning

ICC sensor

DAS-152

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C1A18 LASER AIMING INCMP

C1A18 LASER AIMING INCMP

DTC Logic

INFOID:0000000006228088

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine.

2.

Turn the DCA system ON.

3.

Perform “All DTC Reading” with CONSULT-III.

4.

Check if the “C1A18” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.

Is “C1A18” detected as the current malfunction?

YES

>> Refer to

DAS-152, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006228089

1.

ADJUST LASER BEAM AIMING

Check if the “C1A18” is detected in “Self Diagnostic Result” of “LASER”.

Is “C1A18” detected?

YES

>> Refer to

CCS-109, "ICC SENSOR : DTC Logic"

.

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

C1A18

(18)

LASER AIMING IN-
CMP

Laser beam aiming of ICC sensor is not adjusted

• No laser beam aiming adjustment is

performed

• Laser beam aiming adjustment has

been interrupted