ABS Trouble Code Charts For Warning Light Codes

A: LIST OF TROUBLE CODE

B: TROUBLE CODE 21 (FRONT RIGHT-HAND)

C: TROUBLE CODE 23 (FRONT LEFT-HAND)

D: TROUBLE CODE 25 (REAR RIGHT-HAND)

E: TROUBLE CODE 27 (REAR LEFT-HAND) - ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH)

Diagnosis:
- Faulty ABS sensor (Broken wire, input voltage too high)
- Faulty harness connector
Trouble Symptom:
- ABS does not operate.





Wiring diagram





8E1: CHECK FRONT ABS SENSOR.

8E2: CHECK REAR ABS SENSOR.





8E3: CHECK BATTERY SHORT OF ABS SENSOR.





8E4: CHECK BATTERY SHORT OF ABS SENSOR.





8E5: CHECK TROUBLE CODE.





8E6: CHECK HARNESS/CONNECTOR BETWEEN ABSCM&H/U AND ABS SENSOR.





8E7: CHECK HARNESS/CONNECTOR BETWEEN ABSCM&H/U AND ABS SENSOR.





8E8: CHECK BATTERY SHORT OF HARNESS.





8E9: CHECK BATTERY SHORT OF HARNESS.





8E10: CHECK INSTALLATION OF ABS SENSOR.





8E11: CHECK TROUBLE CODE.





8E12: CHECK INSTALLATION OF REAR TONE WHEEL.





8E13: CHECK ABS SENSOR GAP.





8E14: CHECK HUB RUNOUT.





8E15: CHECK GROUND SHORT OF ABS SENSOR.





8E16: CHECK GROUND SHORT OF HARNESS.





8E17: CHECK POOR CONTACT IN CONNECTIONS.





8E18: CHECK ABSCM&H/U.





8E19: CHECK ANY OTHER TROUBLE CODE APPEARANCE.