B17F6 - Trailer Tail Lamp Control Circuit Short To Battery
B17F6 Possible Causes
- Faulty Trailer Tow Park Lamps Relay
- Trailer Tow Park Lamps Relay harness is open or shorted
- Trailer Tow Park Lamps Relay circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B17F6?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.
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Cost of diagnosing the B17F6 code
Labor: 1.0The cost of diagnosing the B17F6 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.
- Engine Light ON (or Service Engine Soon Warning Light)
B17F6 DescriptionFour relays are used to provide voltage to the Trailer Tow connector. The trailer tow relays are used to switch fused battery voltage directly to the Trailer Tow connector when requested. The trailer tow relays are activated through a ground path provided by the Body Control Module (BCM). The BCM sets the OBDII code when it detects a short to voltage on the Trailer Tow Park Lamps Relay Control circuit.
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