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AutoCodes - Generic - B3808

B3808 Code - Rear Door Lock Relay Circuit

- Code Popularity: 2,015 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B3808?

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 Rear Door Lock Relay
  • Rear Door Lock Relay harness is open or shorted
  • Rear Door Lock Relay circuit poor electrical connection
  • Faulty Body Control Module (BCM)
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How to Fix the DTC B3808?

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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3808 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 B3808 Description

The Body Control Module (BCM) internally grounds the door lock relay control circuit for the rear door lock relay when it receives a class 2 message from the driver door module (DDM) or passenger door module (PDM). When the BCM grounds the door lock relay control circuit the rear door lock relay is energized and locks the rear doors. The Diagnostic Trouble Code (DTC) sets if the door lock relay control circuit is shorted to ground or open for more then one second.

OBDII Code B3808 - Rear Door Lock Relay Circuit - AutoCodes.com
B3808 Code - Rear Door Lock Relay Circuit

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Code B3808 comments

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