Infiniti M35/M45 Y50. Manual — part 728
ASCD INDICATOR
EC-1385
[VK45DE]
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EC
Wiring Diagram
NBS005QQ
TBWT1507E
EC-1386
[VK45DE]
ASCD INDICATOR
Diagnostic Procedure
NBS005QR
1.
CHECK OVERALL FUNCTION
Check ASCD indicator under the following conditions.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
2.
CHECK DTC
Check that DTC U1000 or U1001 is not displayed.
OK or NG
OK
>> GO TO 3.
NG
>> Perform trouble diagnosis for DTC U1000, U1001. Refer to
.
3.
CHECK DTC WITH “UNIFIED METER AND A/C AMP.”
Refer to
.
OK or NG
OK
>> GO TO 4.
NG
>> Go to
DI-35, "DTC [B2202] Meter Communication Circuit"
.
4.
CHECK INTERMITTENT INCIDENT
Refer to
EC-857, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
ASCD INDICATOR
CONDITION
SPECIFICATION
CRUISE LAMP
●
Ignition switch: ON
●
MAIN switch: Pressed at the
1st time
→
at the 2nd time
ON
→
OFF
SET LAMP
●
MAIN switch: ON
●
Vehicle speed: Between 40
km/h (25 MPH) and 144 km/h
(89 MPH)
●
ASCD: Operating
ON
●
ASCD: Not operating
OFF
ELECTRICAL LOAD SIGNAL
EC-1387
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EC
ELECTRICAL LOAD SIGNAL
PFP:25350
Description
NBS005QB
The electrical load signal (Headlamp switch signal, rear window defogger switch signal, heater fan switch sig-
nal, etc.) is transferred through the CAN communication line from BCM to ECM via IPDM E/R.
CONSULT-II Reference Value in Data Monitor Mode
NBS005QC
Specification data are reference values.
Diagnostic Procedure
NBS005QD
1.
CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
1.
Turn ignition switch ON.
2.
Connect CONSULT-II and select “DATA MONITOR” mode.
3.
Select “LOAD SIGNAL” and check indication under the following
conditions.
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 4.
2.
CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Check “LOAD SIGNAL” indication under the following conditions.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 5.
MONITOR ITEM
CONDITION
SPECIFICATION
LOAD SIGNAL
●
Ignition switch: ON
Rear window defogger switch: ON
and/or
Lighting switch: 2ND position
ON
Rear window defogger switch and light-
ing switch: OFF
OFF
HEATER FAN SW
●
Engine: After warming up, idle
the engine
Heater fan switch: ON
ON
Heater fan switch: OFF
OFF
Condition
Indication
Rear window defogger switch: ON
ON
Rear window defogger switch: OFF
OFF
PBIB0103E
Condition
Indication
Lighting switch: ON at 2nd position
ON
Lighting switch: OFF
OFF
PBIB0103E
EC-1388
[VK45DE]
ELECTRICAL LOAD SIGNAL
3.
CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION
Select “HEATER FAN SW” and check indication under the following
conditions.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.
4.
CHECK REAR WINDOW DEFOGGER SYSTEM
Refer to
>> INSPECTION END
5.
CHECK HEADLAMP SYSTEM
LT-42, "HEADLAMP (FOR USA) - XENON TYPE -"
LT-8, "HEADLAMP (FOR USA) - CONVEN-
or
LT-78, "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -"
.
>> INSPECTION END
6.
CHECK HEATER FAN CONTROL SYSTEM
Refer to
>> INSPECTION END
Condition
Indication
Heater fan control switch: ON
ON
Heater fan control switch: OFF
OFF
PBIB1995E
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