For a complete wiring diagram Refer to the Wiring Information.
When Monitored:
With the ignition on, but not during first run.
Or, with low supply voltage.
Or, if a Pressure Sensor fault is active.
Set Condition:
If the Anti-Lock Brakes Module detects a mismatch between the Brake Test Signal (BTS) from the Pressure Sensor and the (B15) Secondary Brake Switch Signal circuit (Diesel) or the (B15) Brake Switch No. 1 Signal circuit (Gas).
Possible Causes
WIRING HARNESS, TERMINAL, CONNECTOR DAMAGESTOP LAMP RELATED DTCs OR SYMPTOMS PRESENTMISADJUSTED PEDAL SWITCHPRESSURE SENSOR OR VOLTAGE RELATED DTCs PRESENT(B15) BRAKE SWITCH NO. 1 SIGNAL CIRCUIT OPEN(B15) BRAKE SWITCH NO. 1 SIGNAL CIRCUIT SHORT TO GROUNDSTOP LAMP SWITCHANTI-LOCK BRAKES MODULE
