Test F: DTC C1742 Rear Sounder Circuit Failure and C1743 Rear Sounder Circuit Short to Battery

PINPOINT TEST F: DTC C1742 REAR SOUNDER CIRCUIT FAILURE AND C1743 REAR SOUNDER CIRCUIT SHORT TO BATTERY

F1-F3:

F3-F4:

F5-F7:

Normal Operation
A 750 Hz variable warning tone is generated from a parking aid speaker. The parking aid speaker increases the warning tone rate as the vehicle gets closer to an obstacle.

Possible Causes
- circuit CMP09 (BN/BU) open, short to ground, or short to voltage
- circuit RMP09 (BU/GN) open, short to ground, or short to voltage
- parking aid module
- parking aid speaker