Test B: DTC P1703 or DTC 1572 - Brake On/Off Circuit Failure

PINPOINT TEST B: DTC P1703 OR DTC P1572 - BRAKE ON/OFF CIRCUIT FAILURE

B1-B2:

B2-B3:

B4-B6:

Normal Operation
The speed control deactivator switch interrupts the power signal to the PCM through circuit 307 (BK/YE) when the brake pedal is applied firmly and passes the stoplamp switch trip point. This is a redundant signal to the PCM.

Possible Causes
- circuit 307 (BK/YE) open or short to voltage
- circuit 1140 (VT) open
- speed control deactivator switch
- PCM