Infiniti FX35, FX50 (S51). Manual - part 329

CCS-136

< DTC/CIRCUIT DIAGNOSIS >

[ICC (FULL SPEED RANGE)]

U0428 STRG SEN CAN 2

Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to 

CCS-13, "LASER BEAM AIMING

ADJUSTMENT : Description"

. 

>> GO TO 2.

2.

CHECK ICC SYSTEM

1.

Erase the “Self Diagnostic Result”, and then perform “All DTC Reading” again after performing the action
test. (Refer to 

CCS-18, "ACTION TEST : Description"

 for action test.)

2.

Check that the ICC system is normal. 

>> WORK END

CCS

U1000 CAN COMM CIRCUIT

CCS-137

< DTC/CIRCUIT DIAGNOSIS >

[ICC (FULL SPEED RANGE)]

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U1000 CAN COMM CIRCUIT

Description

INFOID:0000000005501722

CAN COMMUNICATION

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control units, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads the required data only.
CAN communication signal chart. Refer to 

LAN-30, "CAN Communication Signal Chart"

.

ITS COMMUNICATION

• ITS communication is a multiplex communication system. This enables the system to transmit and receive

large quantities of data at high speed by connecting ICC sensor integrated unit, brake booster control unit,
and accelerator pedal actuator with 2 communication lines.

• ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

DTC Logic

INFOID:0000000005501723

DTC DETECTION LOGIC

NOTE:
If “U1000” is detected, first diagnose the CAN communication system. 

Diagnosis Procedure

INFOID:0000000005501724

1.

PERFORM THE SELF-DIAGNOSIS

1.

Turn the ignition switch ON.

2.

Turn the MAIN switch of ICC system ON, and then wait for 30 seconds or more. 

3.

Perform “All DTC Reading” with CONSULT-III. 

4.

Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “ICC”. 

Is “U1000” detected as the current malfunction?

YES

>> Refer to 

LAN-20, "Trouble Diagnosis Flow Chart"

. 

NO

>> Refer to 

GI-36, "Intermittent Incident"

. 

Special Repair Requirement

INFOID:0000000005501725

DESCRIPTION

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following
operation is performed. 
• Removal and installation of ICC sensor integrated unit
• Replacement of ICC sensor integrated unit

SPECIAL REPAIR REQUIREMENT

1.

LASER BEAM AIMING ADJUSTMENT OF ICC SENSOR INTEGRATED UNIT

Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to 

CCS-13, "LASER BEAM AIMING

ADJUSTMENT : Description"

. 

>> GO TO 2.

DTC

(On board 

display)

Trouble diagnosis name

DTC detecting condition

Possible causes

U1000

(100)

CAN COMM CIRCUIT

If ICC sensor integrated unit is not transmitting or 
receiving CAN communication signal or ITS com-
munication signal for 2 seconds or more

• CAN communication system
• ITS communication system

CCS-138

< DTC/CIRCUIT DIAGNOSIS >

[ICC (FULL SPEED RANGE)]

U1000 CAN COMM CIRCUIT

2.

CHECK ICC SYSTEM

1.

Erase the “Self Diagnostic Result”, and then perform “All DTC Reading” again after performing the action
test. (Refer to 

CCS-18, "ACTION TEST : Description"

 for action test.)

2.

Check that the ICC system is normal. 

>> WORK END

CCS

U1010 CONTROL UNIT (CAN)

CCS-139

< DTC/CIRCUIT DIAGNOSIS >

[ICC (FULL SPEED RANGE)]

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U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000005501726

• CAN controller controls the communication of CAN communication signal and the error detection. 
• CAN controller controls the communication of ITS communication signal and the error detection.

DTC Logic

INFOID:0000000005501727

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005501728

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn the MAIN switch of ICC system ON. 

2.

Perform “All DTC Reading” with CONSULT-III. 

3.

Check if the “U1010” is detected as the current malfunction in “Self Diagnostic Result” of “ICC”. 

Is “U1010” detected as the current malfunction?

YES

>> Replace the ICC sensor integrated unit. Refer to 

CCS-184, "Exploded View"

.

NO

>> INSPECTION END

Special Repair Requirement

INFOID:0000000005501729

DESCRIPTION

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following
operation is performed. 
• Removal and installation of ICC sensor integrated unit
• Replacement of ICC sensor integrated unit

SPECIAL REPAIR REQUIREMENT

1.

LASER BEAM AIMING ADJUSTMENT OF ICC SENSOR INTEGRATED UNIT

Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to 

CCS-13, "LASER BEAM AIMING

ADJUSTMENT : Description"

. 

>> GO TO 2.

2.

CHECK ICC SYSTEM

1.

Erase the “Self Diagnostic Result”, and then perform “All DTC Reading” again after performing the action
test. (Refer to 

CCS-18, "ACTION TEST : Description"

 for action test.)

2.

Check that the ICC system is normal. 

>> WORK END

DTC

(On board 

display)

Trouble diagnosis name

DTC detecting condition

Possible causes

U1010

(110)

CONTROL UNIT (CAN)

If ICC sensor integrated unit detects malfunc-
tion by CAN controller initial diagnosis

ICC sensor integrated unit