OBD Guide

B3452

Left Rear Window Down Switch Circuit Low

B3452 is an OBD-II diagnostic trouble code meaning: Left Rear Window Down Switch Circuit Low. Common causes: short circuit to ground in wiring harness, open circuit in power supply or signal wire. Estimated repair cost: $22–111.

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Left rear window roll down does not work
  • Intermittent operation of the window regulator
  • The power window system malfunction indicator lights up

Causes

  • Short circuit to ground in wiring harness
  • Open circuit in power supply or signal wire
  • Window down switch malfunction
  • Oxidation of contacts in connectors
  • Problems with the power window control unit

How to Fix

  1. Check the power window circuit fuse
  2. Visually inspect the wiring harness for damage.
  3. Check the resistance in the switch circuit
  4. Diagnose the operation of the power window control unit
  5. Replace the faulty switch or restore the integrity of the harness

Related codes

Error B3452 by Vehicle Brand

FAQ

What does the B3452 code mean?

B3452 is an OBD-II diagnostic trouble code that indicates: Left Rear Window Down Switch Circuit Low

What causes a B3452 error code?

The most common causes of B3452 include: Short circuit to ground in wiring harness; Open circuit in power supply or signal wire; Window down switch malfunction; Oxidation of contacts in connectors.

How do I fix a B3452 diagnostic trouble code?

To fix B3452: Check the power window circuit fuse. Visually inspect the wiring harness for damage.. Check the resistance in the switch circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B3452?

Yes, but get it checked soon

How much does it cost to fix B3452?

The estimated repair cost for B3452 is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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