Fault/Messages Codes
FAULT/MESSAGES CODES
| Code | Fault Message | Fault Condition |
|---|---|---|
| 801 | Solenoid Undervoltage | Supply voltage to ABSM from system relay is less than 9.0 volts. Yellow ABS light is on. ABS system is inoperative. |
| 802 | Parking Brake Not Seen | Fault is set when parking brake switch does not cycle from off to on. |
| 805 | Differential Pressure Fault | Differential pressure switch in proportioning valve grounds because of pressure difference between front and rear braking circuits. Red brake light is on. Yellow brake light comes on above 3-5 MPH. |
| 806 | Boost Pressure Fault | Switch grounds because of pressure difference between boost circuit and primary circuit. Red brake and Yellow ABS lights are on. ABS system is inoperative. |
| 807 | Low Accumulator | Low accumulator switch is closed. Yellow ABS light is on. Red brake light comes on after 20-second delay above 3 MPH. |
| 808 | Modulator Fault | Shorted or open solenoid in modulator, or a shorted or open driver or wire. Yellow ABS light is on. ABS system is inoperative. |
| 809 | Self-Test Failure | Internal fault in ABSM. Yellow ABS light is on. ABS system is inoperative. |
| 811 | Relay Fault | Power is always being supplied from system power relay. Yellow ABS light is on. ABS system is inoperative. |
| 812 | Pump/Motor Fault | ABS pump runs for more than 4 minutes without input from brake switch. Red brake light is on. |
| 813 | Brake Fault | Fault is set during a system test when ABSM sees brake switch always applied or never applied. |
| 814 | Low Fluid | Brake fluid level switch is closed for more than one second or parking brake is applied for more than one second at speeds greater than 2 MPH. Red brake and Yellow ABS lights are on. ABS system is inoperative. |
| 815 | Right Rear Speed Sensor Fault | Missing or erratic speed sensor signal. Yellow ABS light comes on after a 2-second delay. ABS system is inoperative. |
| 816 | Left Rear Speed Sensor Fault | Missing or erratic speed sensor signal. Yellow ABS light comes on after a 2-second delay. ABS system is inoperative. |
| 817 | Right Front Speed Sensor Fault | Missing or erratic speed sensor signal. Yellow ABS light comes on after a 2-second delay. ABS system is inoperative. |
| 818 | Left Front Speed Sensor Fault | Missing or erratic speed sensor signal. Yellow ABS light comes on after a 2-second delay. ABS system is inoperative. |