B1742
Mirror Passenger Vertical Switch Circuit Open
B1742 is an OBD-II diagnostic trouble code meaning: Mirror Passenger Vertical Switch Circuit Open. Common causes: broken wires in the switch circuit, mirror switch malfunction. Estimated repair cost: $22–56.
Symptoms
- Inability to adjust the passenger mirror in the vertical plane
- Error indication on the instrument panel (if provided)
- The mirror does not respond to switch commands
Causes
- Broken wires in the switch circuit
- Mirror switch malfunction
- Wiring harness damage
- Poor contact in connectors
- Malfunction of the mirror control unit
How to Fix
- Check the integrity of the wires in the switch circuit
- Inspect connectors for oxidation or damage
- Check the functionality of the mirror switch
- Replace the switch or restore circuit integrity if necessary
- Test the functioning of the mirror after repair
Related codes
FAQ
What does the B1742 code mean?
B1742 is an OBD-II diagnostic trouble code that indicates: Mirror Passenger Vertical Switch Circuit Open
What causes a B1742 error code?
The most common causes of B1742 include: Broken wires in the switch circuit; Mirror switch malfunction; Wiring harness damage; Poor contact in connectors.
How do I fix a B1742 diagnostic trouble code?
To fix B1742: Check the integrity of the wires in the switch circuit. Inspect connectors for oxidation or damage. Check the functionality of the mirror switch. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1742?
Do not drive — repair immediately
How much does it cost to fix B1742?
The estimated repair cost for B1742 is $22–56. Actual cost depends on your vehicle, location, and labor rates.
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