Trouble Codes
ABS CONTROL UNIT TROUBLE CODES
| Code | System Affected |
|---|---|
| 1 | Pump Motor Overrun |
| 1-2 | Pump Motor Circuit |
| 1-3 | High Pressure Leakage |
| 1-4 | Pressure Switch |
| 1-8 | Accumulator Gas Leakage |
| 2-1 | Parking Brake Switch |
| 3-1, 3-2, 3-3, 3-4, 3-5, 3-6, 3-7, 3-8 | Pulser(s) |
| 3-12 | Different Diameter Tire Used |
| 4-1, 4-2, 4-3, 4-4, 4-5, 4-6, 4-7, 4-8 | Wheel Speed Sensor(s) |
| 5, 5-1, 5-2, 5-3, 5-4, 5-5, 5-6, 5-7, 5-8 | Rear Wheel Lock(s) |
| 6 | Front & Rear Fail-Safe Relays |
| 6-1 | Front Fail-Safe Relay |
| 6-4 | Rear Fail-Safe Relay |
| 7-1 & 7-2 | Front Solenoid(s) Circuit |
| 7-4 | Rear Solenoid Circuit |
| 8-1 | ABS Function |
| 8-2 | CPU Comparison |
| 8-4 | Integrated Circuit |
NOTE:
Use only high impedance Digital Volt-Ohmmeter (DVOM) for testing.