Infiniti EX35. Manual — part 1533
WT-88
< SYMPTOM DIAGNOSIS >
LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN OFF
YES
>> GO TO 5.
NO
>> Repair or replace damaged parts.
5.
CHECK SYMPTOM
Check symptom again.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 6.
6.
CHECK BCM
Check BCM input/output signal. Refer to
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 7.
7.
CHECK BCM HARNESS CONNECTOR
Check BCM pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-84, "Removal and Installation"
NO
>> Repair or replace damaged parts.
LOW TIRE PRESSURE WARNING LAMP BLINKS
WT-89
< SYMPTOM DIAGNOSIS >
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LOW TIRE PRESSURE WARNING LAMP BLINKS
Description
INFOID:0000000003579760
DESCRIPTION
The low tire pressure warning lamp illuminates or blinks.
However, a check is necessary because the symptom may not be caused by a system malfunction. For exam-
ple, the transmitter may not be initialized.
NOTE:
If low tire pressure warning lamp blinks as shown in the figure, the system is normal.
Blink Mode A
• This mode shows transmitter status is in OFF- mode.
Perform transmitter wake up operation. Refer to
MITTER WAKE UP OPERATION : Special Repair Requirement"
.
Diagnosis Procedure
INFOID:0000000003579761
1.
CHECK TIRE PRESSURE WARNING CHECK SWITCH POWER SUPPLY
1.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
2.
Check voltage between tire pressure warning check switch connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Riper or replace damaged parts.
2.
CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect BCM harness connector.
3.
Check continuity between BCM harness connector and tire pressure warning check switch connector.
4.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
JPEIC0031GB
Tire pressure warning check switch
—
Voltage (Approx.)
Connector
Terminal
M23
1
Ground
11.8 V
BCM
Tire pressure warning check switch
Continuity
Connector
Terminal
Connector
Terminal
M123
149
M23
1
Existed
BCM
—
Continuity
Connector
Terminal
M123
149
Ground
Not existed
WT-90
< SYMPTOM DIAGNOSIS >
LOW TIRE PRESSURE WARNING LAMP BLINKS
3.
CHECK BCM
Check BCM input/output signal. Refer to
Is the inspection result normal?
YES
>> Check tire pressure warning check switch. Refer to
NO
>> Repair or replace the BCM.
TURN SIGNAL LAMP BLINKS
WT-91
< SYMPTOM DIAGNOSIS >
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TURN SIGNAL LAMP BLINKS
Description
INFOID:0000000003579762
DESCRIPTION
The turn signal lamp blinks when the ignition switch is turned ON.
The BCM connector or circuit may have a malfunction.
Diagnosis Procedure
INFOID:0000000003579763
1.
CHECK TIRE PRESSURE WARNING CHECK SWITCH POWER SUPPLY CIRCUIT
1.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
2.
Check voltage between tire pressure warning check switch connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect BCM harness connector.
3.
Check continuity between BCM harness connector and tire pressure warning check switch connector.
4.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK SYMPTOM
Check again.
Does the turn signal lamp remain blinking?
YES
>> Check turn signal lamp operation. Refer to
EXL-35, "FLASHER : CONSULT-III Function (BCM -
.
NO
>> INSPECTION END
Tire pressure warning check switch
—
Voltage (Approx.)
Connector
Terminal
M23
1
Ground
11.8 V
BCM
Tire pressure warning check switch
Continuity
Connector
Terminal
Connector
Terminal
Existed
M123
149
M23
1
BCM
—
Continuity
Connector
Terminal
M123
149
Ground
Not existed
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