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AutoCodes - Generic - B3885

B3885 Code - Trailer Left Tail Lamp Circuit

- Code Popularity: 1,497 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B3885?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Trailer Left Tail Lamp
  • Trailer Left Tail Lamp harness is open or shorted
  • Trailer Left Tail Lamp circuit poor electrical connection
  • Faulty Trailer Lighting Control Module
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How to Fix the DTC B3885?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

B3885 02 Trailer Left Tail Lamp Circuit Short to Ground
B3885 04 Trailer Left Tail Lamp Circuit Open

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3885 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B3885 Description

The Trailer Lighting Control Module receives a serial data message from the Body Control Module (BCM) indicating that the vehicle park lamps have been activated. The Trailer Lighting Control Module responds by applying battery voltage to the left and right trailer tail lamp control circuits illuminating the trailer tail lamps. The Diagnostic Trouble Code (DTC) sets when the Trailer Lighting Control Module detects a short to ground or an open/high resistance in the left trailer tail lamp control circuit.

OBDII Code B3885 - Trailer Left Tail Lamp Circuit - AutoCodes.com
B3885 Code - Trailer Left Tail Lamp Circuit

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Code B3885 comments

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