Infiniti F50. Manual — part 199
POWER DOOR LOCK SYSTEM
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Symptom Chart
EIS003QU
●
Always check the “Work Flow” before troubleshooting. Refer to
.
●
Before carrying out the inspection on the following table, carry out the preliminary check.
Refer to
Check Communication Line
EIS003O8
1.
CHECK COMMUNICATION CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect connectors for driver door control unit (LCU01) and malfunctioning door control unit.
3.
Check continuity between driver door control unit (LCU01) connector terminal 5 (G/OR) and malfunction-
ing door control unit connector terminal 11 (G/OR).
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness.
Symptom
Diagnosis procedure
Reference
page
Power door lock does not operate with door lock and
unlock switch on power window main switch.
1. Check door lock and unlock switch.
2. Check communication line.
3. Replace driver door control unit (LCU01).
–
Specific door lock actuator does not operate.
1. Check door lock actuator (Passenger, Rear LH, RH).
2. Check communication line.
3. Replace door control unit.
–
Power door lock does not operate with front key cylinder
switch operation.
1. Check front door key cylinder switch.
2. Check communication line.
3. Replace driver door control unit (LCU01).
–
Key reminder door system does not operate properly.
1. Check front door switch.
2. Check key switch.
3. Replace BCM.
–
Terminal
Continuity
Driver door control unit (LCU01)
Passenger door control unit
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
D8
5 (G/OR)
D38
11 (G/OR)
Yes
Terminal
Continuity
Driver door control unit (LCU01)
Rear door control unit
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
D8
5 (G/OR)
D58 (LH)
D78 (RH)
11 (G/OR)
Yes
PIIA3250E
BL-44
POWER DOOR LOCK SYSTEM
2.
CHECK COMMUNICATION SIGNAL
1.
Connect driver door control unit (LCU01) and malfunctioning door control unit connector.
2.
Check voltage between malfunctioning door control unit connector terminal 11 and ground.
OK or NG
OK
>> Communication signal is OK.
NG
>>
●
All door control unit (passenger, rear LH and RH) are NG.
→
Replace Driver door control unit.
●
Any of door control unit (passenger, rear LH or RH door control unit) are NG.
→
Replace mal-
functioning door control unit.
Check Door Lock and Unlock Switch
EIS003O9
1.
CHECK DOOR LOCK AND UNLOCK SWITCH
With CONSULT-II
See “DOOR LK SW-LK and UN” in DATA MONITOR mode with CONSULT-II.
●
When door lock and unlock switch is turned to lock:
●
When lock and unlock switch is turned to unlock:
Without CONSULT-II
Check door lock and unlock switch operation in “SWITCH MONITOR” mode.
Refer to
.
OK or NG
OK
>> Replace driver door control unit (LCU01).
NG
>> Replace door lock and unlock switch.
Passen-
ger door
control
unit
Terminal
Voltage (V)
( + )
( – )
Connector
Terminal
(Wire color)
Ground
D38
11 (G/OR)
Rear LH,
RH door
control
unit
Terminal
( + )
( – )
Connector
Terminal
(Wire color)
Ground
D58 (LH)
D78 (RH)
11 (G/OR)
PIIA3251E
SIIA0591J
DOOK LK SW-LK
: ON
DOOK LK SW-UN
: ON
SEL561W
POWER DOOR LOCK SYSTEM
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D
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A
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Check Door Lock Actuator (Driver Side)
EIS003OB
1.
CHECK DOOR LOCK ACTUATOR HARNESS
1.
Turn the ignition switch OFF.
2.
Disconnect driver door control unit (LCU01) and door lock actuator connector.
3.
Check continuity between driver door control unit (LCU01) connector D8 terminals 12 (BR), 17 (LG) and
front door lock actuator connector D11 terminals 1 (LG), 3 (BR).
4.
Check continuity between driver door control unit (LCU01) con-
nector D8 terminals 12 (BR), 17 (LG) and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness.
2.
CHECK OUTPUT SIGNAL
1.
Connect driver door control unit (LCU01) connector.
2.
Check voltage between driver door control unit (LCU01) connector D8 terminals 12 (BR), 17 (LG) and
ground.
OK or NG
OK
>> Replace front door lock actuator (driver side).
NG
>> Replace driver door control unit (LCU01).
Check Door Lock Actuator (Passenger, Rear LH, RH)
EIS003OC
1.
CHECK DOOR LOCK ACTUATOR HARNESS
1.
Turn the ignition switch OFF.
2.
Disconnect passenger door control unit and door lock actuator connector.
3.
Check continuity between passenger door control unit connector D39 terminals 2 (SB), 3 (BR) and door
lock actuator connector D41 (Passenger), D61 (Rear LH) and D81 (Rear RH) terminal 1 (SB), 3 (BR).
4.
Check continuity between passenger door control unit connector
D38 terminals 2 (SB), 3 (BR) and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness.
12 (BR) – 3 (BR)
: Continuity should exist.
17 (LG) – 1 (LG)
: Continuity should exist.
12 (BR) – Ground
: Continuity should not exist.
17 (LG) – Ground
: Continuity should not exist.
PIIA2816E
Door lock operation
Terminal
Voltage (V)
(Approx.)
( + )
( – )
Lock
17 (LG)
Ground
0
→
Battery voltage
Unlock
12 (BR)
PIIA2817E
1 (SB) – 2 (SB)
: Continuity should exist.
3 (BR) – 3 (BR)
: Continuity should exist.
2 (SB) – Ground
: Continuity should not exist.
3 (BR) – Ground
: Continuity should not exist.
PIIA3252E
BL-46
POWER DOOR LOCK SYSTEM
2.
CHECK OUTPUT SIGNAL
1.
Connect passenger door control unit connector.
2.
Check voltage between passenger door control unit connector D39 terminals 2 (SB), 3 (BR) and ground.
OK or NG
OK
>> Replace malfunction door lock actuator.
NG
>> Replace passenger door control unit.
Check Front Door Key Cylinder Switch
EIS003OD
1.
CHECK DOOR KEY CYLINDER SWITCH SIGNAL
With CONSULT-II
Check front door key cylinder switch (“KEY CYL LK-SW”, “KEY CYL UN-SW”) in DATA MONITOR mode in
CONSULT–II.Refer to
●
When key inserted in front key cylinder is turned to LOCK:
●
When key inserted in front key cylinder is turned to UNLOCK:
Without CONSULT-II
Check front door key cylinder switch operation in “SWITCH MONITOR” mode. Refer to
OK or NG
OK
>> System is OK.
NG
>> GO TO 2.
Door lock operation
Terminal
Voltage (V)
(Approx.)
( + )
( – )
Lock
2 (SB)
Ground
0
→
Battery voltage
Unlock
3 (BR)
PIIA3253E
KEY CYL LK-SW
: ON
KEY CYL UN-SW
: ON
PIIA3149E
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