AutoCodes - OBDII Code List - B1600 CADILLAC

B1600 CADILLAC - Mirror Motor Vertical Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

B1600 CADILLAC Possible 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)

How do I fix code B1600 CADILLAC?

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's pins.
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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

Cost of diagnosing the B1600 CADILLAC code

Labor: 1.0

The cost of diagnosing the B1600 CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

B1600 CADILLAC 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 Cadillac - Mirror Motor Vertical Circuit - AutoCodes.com

More Information

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