Trouble Code Does Not Appear
DIAGNOSIS
- Diagnosis circuit is open.
TROUBLE SYMPTOM
- The ABS warning light turns on or off normally but the start code cannot be read out in the diagnostic mode.
WIRING DIAGRAM
Wiring Diagram. Scheme 30
Scheme 31
Scheme 32
- 7C1: CHECK DIAGNOSIS TERMINAL. Measure resistance between diagnosis terminals (B81) and chassis ground. Terminals Diagnosis terminal (A) - Chassis ground: Diagnosis terminal (B) - Chassis ground: (Scheme 31): Measuring Resistance Between Diagnosis Terminals (B81) & Chassis Ground CHECK: Is the resistance less than 0.5 ohm? YES: Go to step 7C2. NO: Repair diagnosis terminal harness.
- 7C2: CHECK DIAGNOSIS LINE. Turn ignition switch to OFF. Connect diagnosis terminal (B81) to diagnosis connector (B82) No. 6. Disconnect connector from ABSCM & H/U. Measure resistance between ABSCM & H/U connector and chassis ground. Connector & terminal (F49) No. 4 - Chassis ground: (Scheme 32): Measuring Resistance Between ABSCM & H/U Connector & Chassis Ground CHECK: Is the resistance less than 0.5 ohm? YES: Go to step 7C3. NO: Repair harness connector between ABSCM & H/U and diagnosis connector.
- 7C3: CHECK POOR CONTACT IN ABSCM & H/U CONNECTOR. CHECK: Is there poor contact in ABSCM & H/U connector? YES: Repair connector. NO: Replace ABSCM & H/U, see «ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM & H/U)»(ref-175571-S23393250682005050600000).
Diagnostics Trouble Code Chart By ABS Warning Light. Scheme 33
| DTC | Description |
|---|---|
| CODE 21, 23, 25, 27 | ABNORMAL ABS SENSOR (OPEN CIRCUIT OR INPUT VOLTAGE TOO HIGH) |
| CODE 22, 24, 26, 28 | ABNORMAL ABS SENSOR (ABNORMAL ABS SENSOR SIGNAL) |
| CODE 29 | ABNORMAL ABS SENSOR SIGNAL (ANY ONE OF FOUR) |
| CODE 31, 33, 35, 37 | ABNORMAL INLET SOLENOID VALVE CIRCUIT(S) IN ABSCM & H/U |
| CODE 32, 34, 36, 38 | ABNORMAL OUTLET SOLENOID VALVE CIRCUIT(S) IN ABSCM & H/U |
| CODE 41 | ABNORMAL ABS CONTROL MODULE |
| CODE 42 | SOURCE VOLTAGE IS ABNORMAL |
| CODE 44 | A COMBINATION OF AT CONTROL ABNORMAL |
| CODE 51 | ABNORMAL VALVE RELAY |
| CODE 52 | ABNORMAL MOTOR AND/OR MOTOR RELAY |
| CODE 54 | ABNORMAL STOP LIGHT SWITCH |
| CODE 56 | ABNORMAL G SENSOR OUTPUT VOLTAGE |
DIAGNOSTIC TROUBLE CODES (DTC) LIST