Rear Sounder Circuit Failure
Table of contents
C1742 MERCURY Possible Causes
- Faulty Parking Aid Speaker
- Parking Aid Speaker harness is open or shorted
- Parking Aid Speaker circuit poor electrical connection
- Faulty Parking Aid Module
How do I fix code C1742 MERCURY?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the C1742 MERCURY code
The cost of diagnosing the C1742 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C1742 MERCURY Description
The system can be disabled by the parking aid switch. 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.