P0703

Test 1 - 2:

Test 3 - 6:

Test 7 - 8:

SYMPTOM
P0703-BRAKE SWITCH # 2 CIRCUIT

WHEN MONITORED
TEST # 1: Vehicle speed greater than 20 mph to enable.

TEST # 2: Speed must be 0 and brake switch indicates on.

SET CONDITION
TEST # 1: If vehicle speed goes to 0 mph without brake input. Condition must be repeated 15 times to set fault. Two trip fault.

TEST # 2: If vehicle speed goes above 20 mph for more than 6.0 seconds without a change in brake switch state. Condition must be repeated 15 times to set fault. Two Trip Fault.

POSSIBLE CAUSES
- Good Trip Equal To Zero
- (F32) Fused B+ Circuit
- (K29) Brake Switch Signal Circuit Shorted To Voltage
- (K29) Brake Switch Signal Shorted To Ground
- (K29) Brake Switch Signal Circuit Open
- (Z1) Ground Circuit Open
- Brake Lamp Switch Operation
- PCM