Antilock Brake System (ABS)

ABS DIAGNOSTIC TROUBLE CODE DESCRIPTION (4WAL)

NOTE: These are the only ABS codes provided by the manufacture using the factory recommended scan tool (Tech 1 or Tech 2), additional codes obtained with an aftermarket scan tool are not valid ABS codes, contact the aftermarket scan tool manufacturer for additional information.

DTC 21 Right Front Speed Sensor or Circuit Open
DTC 22 Missing Right Front Speed Signal
DTC 23 Erratic Right Front Speed Sensor
DTC 25 Left Front Speed Sensor or Circuit Open
DTC 26 Missing Left Front Speed Signal
DTC 27 Erratic Left Front Speed Sensor
DTC 29 Simultaneous Dropout of Front Wheel Speed Sensors
DTC 35 Open or Grounded Rear Speed Signal Circuit
DTC 36 Missing Rear Speed Sensor Signal
DTC 37 Erratic Rear Speed Signal
DTC 38 Wheel Speed Error
DTC 41-54 Brake Pulse Modulator Valve (BPMV) Control Valves
DTC 65 Open or Shorted Pump Motor Relay
DTC 66 Open or Shorted Pump Motor Relay
DTC 67 Open Motor Circuit or Shorted Electronic Brake Control Module (EBCM) Output
DTC 68 Locked Motor or Shorted Motor Circuit
DTC 71-74 EBCM Memory Errors
DTC 81 Brake Switch Circuit Shorted or Open
DTC 86 Shorted Anti-Lock Warning Lamp
DTC 88 Shorted Brake Warning Lamp