Antilock Brakes / Traction Control Systems: Description and Operation: Diagnostic Trouble Codes

The Bendix ABX-4 brake system module may report any of the following diagnostic trouble codes:

1994-1/2 VERSION (Early built models)
- ABS Warning Lamp Circuit
- ABS Warning Lamp Diode Circuit
- Controller Antilock Brake (CAB)
- Excess Decay
- Left Front Wheel Speed Sensor
- Right Front Wheel Speed Sensor
- Left Rear Wheel Speed Sensor
- Right Rear Wheel Speed Sensor
- LF Wheel Speed Sensor Continuity
- RF Wheel Speed Sensor Continuity
- LR Wheel Speed Sensor Continuity
- RR Wheel Speed Sensor Continuity
- Modulator Circuit
- Pump/Motor Circuit
- Solenoid Undervoltage
- System Relay Circuit

1995 VERSION (Late built models)
- ABS Warning Lamp Circuit
- ABS Warning Lamp Diode Circuit
- CAB Malfunction
- CAB Memory Error
- CAB Sensor Circuit
- Intermittent LF WSS Signal
- Intermittent LR WSS Signal
- Intermittent RF WSS Signal
- Intermittent RR WSS Signal
- Intermittent WSS Signal
- LF Solenoid Circuit Open
- LF Solenoid Circuit Shorted
- LF WSS Dynamic Continuity
- LF WSS Erratic Signal
- LF WSS Missing Signal
- LF WSS Static Continuity
- LR Solenoid Circuit Shorted/Open
- LR WSS Dynamic Continuity
- LR WSS Erratic Signal
- LR WSS Missing Signal
- LR WSS Static Continuity
- Pump/Motor Monitor Circuit
- Pump/Motor Relay Control Circuit
- Pump/Motor Relay Output Circuit
- Pump/Motor Stalled
- RF Solenoid Circuit Open
- RF Solenoid Circuit Shorted
- RF WSS Dynamic Continuity
- RF WSS Erratic Signal
- RF WSS Missing Signal
- RF WSS Static Continuity
- RF Solenoid Circuit Shorted
- RR Solenoid Circuit Open
- RR WSS Dynamic Continuity
- RR WSS Erratic Signal
- RR WSS Missing Signal
- RR WSS Static Continuity
- System Relay Control Circuit
- System Relay Gnd Circuit Open
- System Relay Output Circuit
- WSS Speed Comparison