Infiniti F50. Manual — part 18
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
ACS-65
[ICC]
C
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B
ACS
6.
Perform ICC system running test (drive vehicle with ICC system ON), and make sure that ICC system
warning lamp (orange) does not illuminate.
SELF-DIAGNOSIS BY CONSULT-II WILL NOT RUN
Possible Irregular Condition
1.
CHECK CONSULT-II SYSTEM
●
Can CONSULT-II call other systems?
Yes or No
Yes
>> GO TO 2.
No
>> Check CONSULT-ll SYSTEM. Refer to
GI-38, "CONSULT-II Data Link Connector (DLC) Circuit"
2.
CHECK POWER SUPPLY FOR ICC UNIT
●
Is ICC unit turned ON?
Yes or No
Yes
>> GO TO 3.
No
>> Check power supply system, and repair if necessary.
3.
CHECK HARNESS FOR DATA LINK CONNECTOR
●
Is continuity between ICC unit and data link connector normal?
Yes or No
Yes
>> GO TO 4.
No
>> Harness repair
4.
SELF-DIAGNOSIS CHECK
●
Disconnect ICC unit connector, and check terminals for bend and looseness. Securely connect it again.
●
Enter self-diagnosis mode?
Yes or No
Yes
>> Inspection is completed.
No
>> ICC unit replacement
PKIA2368E
Open or short lines
Trouble phenomenon
Malfunction causes
ICC unit power supply malfunction
No voltage supply from ignition switch
Ignition relay malfunctioned
Fuse blown
Harness open
Harness shorted
Ground cable not connected
Harness open
Harness shorted
ICC unit malfunction
ACS-66
[ICC]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
SELF-DIAGNOSIS BY ICC SYSTEM DISPLAY WILL NOT RUN.
Possible Irregular Condition
1.
CHECK ICC SYSTEM DISPLAY
●
When ignition switch is ON, do all displays illuminate?
Yes or No
Yes
>> GO TO 2.
No
>> GO TO 5.
2.
CHECK ICC STEERING SWITCH
●
Check ICC steering switch. Refer to
ACS-101, "ICC Steering Switch"
OK or NG
OK
>> GO TO 3.
NG
>> Replace ICC steering switch.
3.
CHECK HARNESS BETWEEN ICC UNIT AND ICC STEERING SWITCH
●
Check harness and spiral cable between ICC unit and ICC steering switch for open or short circuit.
OK or NG
OK
>> GO TO 4.
NG
>> Replace or replace applicable item.
SKIA1239E
Open or short lines
Trouble phenomenon
Malfunction causes
ICC unit power supply malfunction
No voltage supply from ignition switch
Fuse blown
Harness open
Harness shorted
Ground cable not connected
Harness open
Harness shorted
ICC steering switch malfunction
No signal transmitted
Harness open
Harness shorted
Spiral cable open
Spiral cable shorted
Switch malfunction
CAN communication system malfunction
Signal not transmitted
Harness open
Harness shorted
CAN communication outside the stan-
dard
Combination meter system malfunction
Indication not possible
Indicator malfunction
Indicator segments disappear.
ICC unit malfunction
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
ACS-67
[ICC]
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ACS
4.
CHECK SELF-DIAGNOSIS
●
Disconnect connector of ICC unit, and check terminals for bend and looseness. Securely connect it again.
●
Enter self-diagnosis mode?
Yes or No
Yes
>> Inspection is completed.
No
>> GO TO 5.
5.
CHECK POWER SUPPLY FOR ICC UNIT
●
Check ICC unit power supply, and repair if necessary.
●
When ignition switch is ON, do all displays illuminate?
Yes or No
Yes
>> Perform self-diagnosis again.
No
>> GO TO 6.
6.
CHECK CONNECTOR FOR ICC UNIT
●
Disconnect connector of ICC unit, and check terminals for bend and looseness. Securely connect it again.
●
When ignition switch is ON, do all displays illuminate?
Yes or No
Yes
>> Perform self-diagnosis again.
No
>> GO TO 7.
7.
CHECK CAN COMMUNICATION
●
Perform self-diagnosis with CONSULT-II, and check CAN communication system for malfunction.
OK or NG
OK
>> Replace combination meter.
NG
>> CAN communication inspection. Refer to
ACS-70, "DTC 20 CAN COMM CIRCUIT"
.
ACS-68
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
PFP:00000
Diagnostic Trouble Code (DTC) Chart
EKS003P9
×
:Applicable
DTC
No.
CONSULT-II screen terms
ICC system
warning lamp
Fail-safe
Malfunctions detected where...
Refer-
ence
page
11
CONTROL UNIT
×
×
●
ICC unit internal malfunction
20
CAN COMM CIRCUIT
×
×
●
ICC unit detected CAN communi-
cation malfunction.
31
POWER SUPPLY CIR1
×
×
●
ICC unit power supply voltage is
excessively low. (less than 8V)
34
POWER SUPPLY CIR2
×
×
●
ICC unit power supply voltage is
excessively high.
41
VHCL SPEED SE CIRC
×
×
●
Wheel sensor malfunction.
●
VDC/TCS/ABS control unit mal-
function
●
AT vehicle speed sensor mal-
function
●
TCM malfunction
42
THRTL POS SEN CIRC
×
×
●
Throttle position sensor harness
is open or shorted.
●
Throttle position sensor input is
HI or fixed to LO.
●
Closed throttle position switch is
ON or stuck to OFF.
43
ABS/TCS/VDC CIRC
×
×
●
ABS/TCS/VDC system malfunc-
tion
45
BRAKE SW/ STOP L SW
×
×
●
Brake and stop lamp switch har-
ness is open or shorted.
●
Brake and stop lamp switch is
ON or stuck to OFF.
●
Brake and stop lamp switch is
stuck to ON.
46
OPERATION SW CIRC
×
×
●
ICC steering switch harness or
spiral cable is open or shorted.
●
ICC steering switch malfunction
61
PRESS SEN CIRCUIT
×
×
●
Brake pressure sensor harness is
open or shorted.
●
Brake pressure sensor malfunc-
tion
●
Brake pressure sensor input cir-
cuit malfunction
62
BOOSTER SOL/V CIRCUIT
×
×
●
Solenoid harness is open or
shorted.
●
Solenoid is open.
●
Solenoid drive circuit malfunction
63
RELEASE SW CIRCUIT
×
×
●
Release switch harness is open
or shorted.
●
Release switch malfunction
●
Release switch input circuit mal-
function
65
PRESSURE CONTROL
×
×
●
Booster malfunction
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