Infiniti QX56 (JA60). Manual — part 1027
WT-36
< SYMPTOM DIAGNOSIS >
TPMS
SYMPTOM DIAGNOSIS
TPMS
Symptom Table
INFOID:0000000005148234
Symptom
Reference
Low tire pressure warning lamp does not come on when ignition switch is turned ON.
Low tire pressure warning lamp stays on when ignition switch is turned ON.
Low tire pressure warning lamp flashes when ignition switch is turned ON.
Hazard warning lamps flash when ignition switch is turned ON.
Tire pressure information in display unit does not exist.
ID registration cannot be completed.
LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON
WT-37
< SYMPTOM DIAGNOSIS >
C
D
F
G
H
I
J
K
L
M
A
B
WT
N
O
P
LOW TIRE PRESSURE WARNING LAMP DOES NOT TURN ON
Low Tire Pressure Warning Lamp Does Not Come On When Ignition Switch Is Turned
On
INFOID:0000000005148235
DIAGNOSTIC PROCEDURE
1.
SELF-DIAGNOSTIC RESULT CHECK
Using CONSULT-III, check display contents of BCM in SELF-DIAGNOSIS.
Is "CAN COMM CIRCUIT" displayed in the self-diagnosis display items?
YES
>> Malfunction in CAN communication system.
NO
>> GO TO 2
2.
CHECK COMBINATION METER
Check combination meter operation. Refer to
MWI-23, "CONSULT-III Function (METER/M&A)"
.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Replace combination meter. Refer to
MWI-100, "Removal and Installation"
3.
CHECK LOW TIRE PRESSURE WARNING LAMP
Disconnect BCM harness connector.
Does the low tire pressure warning lamp activate?
YES
>> Replace BCM. Refer to
BCS-59, "Removal and Installation"
NO
>> Check combination meter operation.
WT-38
< SYMPTOM DIAGNOSIS >
LOW TIRE PRESSURE WARNING LAMP STAYS ON
LOW TIRE PRESSURE WARNING LAMP STAYS ON
Low Tire Pressure Warning Lamp Stays On When Ignition Switch Is Turned On
INFOID:0000000005148236
DIAGNOSTIC PROCEDURE
1.
BCM CONNECTORS
1. Turn ignition switch OFF.
2. Disconnect BCM harness connectors.
3. Check terminals for damage or loose connections.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair or replace damaged parts.
2.
BCM POWER SUPPLY AND GROUND CIRCUITS
Check BCM power supply and ground circuits. Refer to
.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-59, "Removal and Installation"
NO
>> Repair BCM circuits.
LOW TIRE PRESSURE WARNING LAMP BLINKS
WT-39
< SYMPTOM DIAGNOSIS >
C
D
F
G
H
I
J
K
L
M
A
B
WT
N
O
P
LOW TIRE PRESSURE WARNING LAMP BLINKS
Low Tire Pressure Warning Lamp Flashes When Ignition Switch Is Turned On
INFOID:0000000005148237
Regarding Wiring Diagram information, refer to
WT-30, "Wiring Diagram - TIRE PRESSURE MONITORING
NOTE:
If low tire pressure warning lamp flashes as shown, the system is normal.
Flash Mode A
• This mode shows transmitter status is OFF-mode.
Carry out transmitter wake up operation. Refer to
.
1.
CHECK BCM CONNECTORS
1. Turn ignition switch OFF.
2. Disconnect BCM harness connectors.
3. Check terminals for damage or loose connections.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair or replace damaged parts.
2.
CHECK TIRE PRESSURE WARNING CHECK CONNECTOR CIRCUIT
Check continuity between BCM harness connector M18 terminal 15
and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-59, "Removal and Installa-
.
NO
>> Repair circuit for short to ground.
SEIA0347E
Continuity should not exist.
ALEIA0014ZZ
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