Infiniti FX35, FX50 (S51). Manual — part 1422
PCS-46
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
DIAGNOSIS SYSTEM (BCM)
Test item
Description
BATTERY SAVER
This test is able to check interior room lamp operation.
The interior room lamp will be activated when “ON” on CONSULT-III screen is touched.
PW REMOTO DOWN SET
This test is able to check power window down operation.
The power window down will be activated when “ON” on CONSULT-III screen is touched.
OUTSIDE BUZZER
This test is able to check Intelligent Key warning buzzer operation.
The Intelligent Key warning buzzer will be activated when “ON” on CONSULT-III screen is touched.
INSIDE BUZZER
This test is able to check warning chime in combination meter operation.
• Take away warning chime sounds when “TAKE OUT” on CONSULT-III screen is touched.
• Key warning chime sounds when “KEY” on CONSULT-III screen is touched.
• The P position warning chime sounds when “KNOB” on CONSULT-III screen is touched.
INDICATOR
This test is able to check warning lamp operation.
• “KEY” Warning lamp illuminates when “RED ON” on CONSULT-III screen is touched.
• The “KEY” Warning lamp blinks when “RED IND” on CONSULT-III screen is touched.
INT LAMP
This test is able to check interior room lamp operation.
The interior room lamp will be activated when “ON” on CONSULT-III screen is touched.
LCD
This test is able to check meter display information
• Engine start information displays when “BP N” on CONSULT-III screen is touched.
• Engine start information displays when “BP I” on CONSULT-III screen is touched.
• Key ID warning displays when “ID NG” on CONSULT-III screen is touched.
• Steering lock information displays when “ROTAT” on CONSULT-III screen is touched.
• The P position warning displays when “SFT P” on CONSULT-III screen is touched.
• Intelligent Key insert information displays when “INSRT” on CONSULT-III screen is touched.
• Intelligent Key low battery warning displays when “BATT” on CONSULT-III screen is touched.
• Take away warning displays when “NO KY” on CONSULT-III screen is touched.
• Key warning displays when “OUTKY” on CONSULT-III screen is touched.
• The OFF position warning displays when “LK WN” on CONSULT-III screen is touched.
TRUNK/GLASS HATCH
This test is able to check back door opener actuator open operation.
This actuator opens when “ON” on CONSULT-III screen is touched.
FLASHER
This test is able to check security hazard lamp operation.
The hazard lamps will be activated when “LH” or “RH” on CONSULT-III screen is touched.
HORN
This test is able to check horn operation.
The horn will be activated when “ON” on CONSULT-III screen is touched.
P RANGE
This test is able to check A/T shift selector power supply
A/T shift selector power is supplied when “ON” on CONSULT-III screen is touched.
ENGINE SW ILLUMI
This test is able to check push-ignition switch illumination operation.
Push-ignition switch illumination illuminates when “ON” on CONSULT-III screen is touched.
LOCK INDICATOR
This test is able to check indicator in push-ignition switch operation.
Indicator in push-ignition switch (LOCK) illuminates when “ON” on CONSULT-III screen is touched.
ACC INDICATOR
This test is able to check indicator in push-ignition switch operation.
Indicator in push-ignition switch (ACC) illuminates when “ON” on CONSULT-III screen is touched.
IGNITION ON IND
This test is able to check indicator in push-ignition switch operation.
Indicator in push-ignition switch (ON) illuminates when “ON” on CONSULT-III screen is touched.
KEY SLOT ILLUMI
This test is able to check key slot illumination operation.
Key slot illumination blinks when “ON” on CONSULT-III screen is touched.
TRUNK/BACK DOOR
This test is able to check back door opener actuator open operation.
This actuator opens when “ON” on CONSULT-III screen is touched.
PCS
U1000 CAN COMM CIRCUIT
PCS-47
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
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DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
BCM
BCM : Description
INFOID:0000000005240664
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 unit, 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-line, CAN L-line) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to
LAN-29, "CAN System Specification Chart"
BCM : DTC Logic
INFOID:0000000005240665
DTC DETECTION LOGIC
BCM : Diagnosis Procedure
INFOID:0000000005240666
1.
PERFORM SELF DIAGNOSTIC
1.
Turn ignition switch ON and wait for 2 seconds or more.
2.
Check “Self Diagnostic Result”.
Is DTC “U1000” displayed?
YES
>> Refer to
LAN-20, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-36, "Intermittent Incident"
.
IPDM E/R
IPDM E/R : Description
INFOID:0000000005240667
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 unit, 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 line, CAN-L line) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to
LAN-29, "CAN System Specification Chart"
IPDM E/R : DTC Logic
INFOID:0000000005240668
DTC DETECTION LOGIC
IPDM E/R : Diagnosis Procedure
INFOID:0000000005240669
1.
PERFORM SELF DIAGNOSTIC
DTC
CONSULT-III display
description
DTC Detection Condition
Possible cause
U1000
CAN COMM
When BCM cannot communicate CAN com-
munication signal continuously for 2 seconds
or more.
CAN communication system
DTC
CONSULT-III display
description
DTC Detection Condition
Possible cause
U1000
CAN COMM CIRCUIT
When IPDM E/R cannot communicate CAN
communication signal continuously for 2
seconds or more
CAN communication system
PCS-48
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
U1000 CAN COMM CIRCUIT
1.
Turn the ignition switch ON and wait for 2 seconds or more.
2.
Check “Self Diagnostic Result” of IPDM E/R.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to
LAN-20, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-36, "Intermittent Incident"
.
PCS
U1010 CONTROL UNIT (CAN)
PCS-49
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
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U1010 CONTROL UNIT (CAN)
BCM
BCM : DTC Logic
INFOID:0000000005240670
DTC DETECTION LOGIC
BCM : Diagnosis Procedure
INFOID:0000000005240671
1.
REPLACE BCM
When DTC “U1010” is detected, replace BCM.
>> Replace BCM. Refer to
.
DTC
CONSULT-III display de-
scription
DTC Detection Condition
Possible cause
U1010
CONTROL UNIT(CAN)
BCM detected internal CAN communication circuit malfunction.
BCM
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