B1540 - Mirror Driver Switch Assembly Circuit Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B1540 Possible Causes

  • Faulty Mirror Driver Switch Assembly
  • Mirror Driver Switch Assembly harness is open or shorted
  • Mirror Driver Switch Assembly circuit poor electrical connection
  • Faulty Body Control Module (BCM)

First diagnose B1540 code

    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 terminals.

Cost of diagnosing the B1540 code

    Labor: 1.0

    The cost of diagnosing the B1540 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B1540 Possible Symptoms

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

B1540 Meaning

The Body Control Module (BCM) monitors the Mirror Driver Switch Assembly. The BCM sets the OBDII code when the Mirror Driver Switch Assembly is not to factory specifications.
OBDII Code B1540 - Mirror Driver Switch Assembly Circuit Open - Engine-Codes.com

B1540 More Information

Need more information on how to fix the B1540 code?
Get Access to Factory Service Manuals

Related Information