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Test F: DTC C1742 - Sounder Circuit Failure Or DTC C1743 - Sounder Circuit Short To Vbatt

PINPOINT TEST F: DTC C1742 - SOUNDER CIRCUIT FAILURE OR DTC C1743 - SOUNDER CIRCUIT SHORT TO VBATT

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.

DTC C1742 (Rear Sounder Circuit Failure) - sets when the parking aid module senses an open or short to ground on circuit CMP09 (BN/BU) or RMP09 (BU/GN).

DTC C1743 (Rear Sounder Circuit Short to Vbatt) - sets when the parking aid module senses a short to voltage on circuit RMP09 (BU/GN).

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Parking aid speaker
- Parking aid module


F1-F4:






F4-F5:






F6-F8: