Engine-Codes - Generic - B1809

B1809 Code - Lamp Tail Output Circuit Short To Ground

- Code Popularity: 4,394 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC B1809?

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 Lamp Tail
  • Lamp Tail harness is open or shorted
  • Lamp Tail circuit poor electrical connection
  • Faulty Body Control Module (BCM)
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How to Fix the DTC B1809?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B1809 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the B1809 Code Mean?

The Body Control Module (BCM) monitors the Lamp Tail. The BCM sets the OBDII code when the Lamp Tail is not to factory specifications.

B1809 Code - Lamp Tail Output Circuit Short To Ground

Need more Information on the Code?

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Code B1809 Information for Specific Makes

  • B1809 Chrysler Passenger Door Lock/Unlock Switch Circuit Stuck Unlock
  • B1809 Dodge Passenger Door Lock/Unlock Switch Circuit Stuck Unlock
  • B1809 Jeep Passenger Door Lock/Unlock Switch Circuit Stuck Unlock
  • B1809 RAM Passenger Door Lock/Unlock Switch Circuit Stuck Unlock

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