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B1600 Buick Code - Mirror Motor Vertical Circuit

- Code Popularity: 792 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1600 Buick?

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 Driver/Passenger Rearview Mirror Motor
  • Driver/Passenger Rearview Mirror Motor harness is open or shorted
  • Driver/Passenger Rearview Mirror Motor circuit poor electrical connection
  • Faulty Driver Door Module (DDM) or Passenger Door Module (PDM)
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How to Fix the DTC B1600 Buick?

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

B1600 01 Mirror Motor Vertical Circuit Short to Battery
B1600 02 Mirror Motor Vertical Circuit Short to Ground
B1600 04 Mirror Motor Vertical Circuit Open

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1600 Buick 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 B1600 Buick Description

The Driver Door Module (DDM) or Passenger Door Module (PDM) controls the mirror horizontal and vertical motors through the use of bi-directional motor controls. When the mirror is commanded up and down, voltage or ground is supplied to the mirror vertical motor through the mirror motor vertical control circuit and voltage or ground is supplied through the mirror motor common control circuit.
Horizontal controls operate in the same manner with the mirror motor horizontal control circuit supplying voltage or ground and the mirror motor common control circuit supplying voltage or ground to the mirror horizontal motor when the mirror is commanded right and left.

OBDII Code B1600 Buick - Mirror Motor Vertical Circuit - AutoCodes.com
B1600 Buick Code - Mirror Motor Vertical Circuit

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Code B1600 Buick comments

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