DTC 25
WHEEL SENSOR OR ROTORDiagnostic Procedure
Malfunction code No. 21, 22, 25, 26, 31, 32, 35, 36 or 18
NOTE: Wheel position should be distinguished by code No. except code No. 18 (sensor rotor).
1. INSPECTION START
Wheel sensor inspection
>> GO TO 2.
2. CHECK CONNECTOR
1. Disconnect connectors from ABS actuator and electric unit and wheel sensor of malfunction code No. Check terminals for damage or loose connection, then reconnect connectors.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
YES >> GO TO 3.
NO >> Inspection End.
3. CHECK WHEEL SENSOR ELECTRICAL
1. Disconnect ABS actuator and electric unit connector.
2. Check resistance between ABS actuator and electric unit connector E55 terminals.
Code No. 21 or 22 (Front RH wheel)
Terminals 4 (B) and 5 (W)
Code No. 25 or 26 (Front LH wheel)
Terminals 6 (G) and 7 (R)
Code No. 31 or 32 (Rear RH wheel)
Terminals 1 (LG) and 3 (PU)
Code No. 35 or 36 (Rear LH wheel)
Terminals 8 (L) and 9 (P)
Resistance
Front: 1.45 - 1.85 kOhms
Rear: 1.05 - 1.35 kOhms
Is resistance within specification?
YES >> GO TO 5.
NO >> GO TO 4.
4. CHECK WHEEL SENSOR
Check each sensor for resistance.
Resistance
Front: 1.45 - 1.85 kOhms
Rear: 1.05 - 1.35 kOhms
Is resistance within specification?
YES >> Check the following.
^ If resistance is within specification range, repair harness or connectors.
- Harness connectors E11, E53, E55, B102, B103
- Harness for open or short between wheel sensor connectors and ABS actuator and electric unit
NO >> Replace wheel sensor.
5. CHECK TIRE
Check for inflation pressure, wear and size of each tire. (See NOTE)
Are tire pressure and size correct and is tire wear within specifications?
YES >> GO TO 6.
NO >> Adjust tire pressure or replace tire(s). (See NOTE)
6. CHECK WHEEL BEARING
Check wheel bearing axial end play.
Is wheel bearing axial end play within specifications?
YES >> GO TO 7.
NO >> Repair or replace as necessary.
7. CHECK SENSOR ROTOR
Check sensor rotor for tooth damage. (See NOTE)
Is sensor rotor free from damage?
YES >> Check ABS actuator and electric unit pin terminals for damage and the connection of ABS actuator and electric unit harness connector. Reconnect ABS actuator and electric unit harness connector. Then retest.
NO >> Replace sensor rotor.