DTC Diagnosis Procedure
- Activate and display TPMS sensor IDs
- Display tire pressure reported by the TPMS sensor
- Read TPMS DTCs
- Register TPMS sensor IDs
- CHECK LOW TIRE PRESSURE WARNING CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT
Perform the trouble diagnosis for power supply and ground circuit. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace malfunctioning components.
- CHECK TIRE PRESSURE RECEIVER CIRCUIT
- Disconnect the tire pressure receiver connector.
- Check the continuity between the low tire pressure warning control unit connector and tire pressure receiver connector.
Low tire pressure warning control unit
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M90
6
E43 (Front LH)
3
Yes
22
2
10
1
26
4
5
E60 (Front RH)
3
21
2
9
1
25
4
4
C109 (Rear LH)
3
20
2
8
1
24
4
3
C110 (Rear RH)
3
19
2
7
1
23
4
- Check the continuity between the low tire pressure warning control unit connector and ground.
Low tire pressure warning control unit
--
Continuity
Connector
Terminal
M90
6
Ground
No
22
10
26
5
21
9
25
4
20
8
24
3
19
7
23
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace the malfunctioning harness or connector.
- PERFORM SELF DIAGNOSTIC RESULT AGAIN
With CONSULT
- Check the tire pressure for all wheels and adjust to the specified value. Refer to Tire .
- Perform tire pressure sensor ID registration for all wheels. Refer to Work Procedure .
- Perform "Self Diagnostic Result".
Is DTC "C1754" detected?
YES
Replace the low tire pressure warning control unit. Refer to Removal and Installation .
NO
Check for looseness or damage at the harness connector pins of the low tire pressure warning control unit. Repair or replace if necessary.