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AutoCodes - Generic - B2639

B2639 Code - Driver DEF Door Fail

- Code Popularity: 3,444 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B2639?

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 Front Mode Door Motor
  • Front Mode Door Motor harness is open or shorted
  • Front Mode Door Motor circuit poor electrical connection
  • Front Mode Door Motor control linkage installation condition
  • Faulty Air Condition (A/C) Automatic Amplifier
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How to Fix the DTC B2639?

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 B2639 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 B2639 Description

The Air Condition (A/C) Automatic Amplifier monitors the Front Mode Door Motor position. The A/C Automatic Amplifier sets the Diagnostic Trouble Code (DTC) when the malfunctioning door position is detected at DEF position.

OBDII Code B2639 - Driver DEF Door Fail - AutoCodes.com
B2639 Code - Driver DEF Door Fail

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Code B2639 comments

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