OBD Guide
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B2188

Rear Wiper Select Switch 'E' Short To Ground

B2188 is an OBD-II diagnostic trouble code meaning: Rear Wiper Select Switch 'E' Short To Ground. Common causes: wiring harness damage, short circuit in switch. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Rear wiper not working
  • Spontaneous switching on/off of the wiper
  • Check Engine Light Is On

Causes

  • Wiring harness damage
  • Short circuit in switch
  • Contact corrosion
  • Damage to wire insulation
  • BCM malfunction (rare)

How to Fix

  1. Check the condition of the wiring harness at the trunk hatch
  2. Inspect the rear wiper switch contacts
  3. Ring the circuit for short circuit
  4. If necessary, replace the switch or repair the wiring
  5. Reset error with scanner

Related codes

B2187B2189U0155

FAQ

What does the B2188 code mean?

B2188 is an OBD-II diagnostic trouble code that indicates: Rear Wiper Select Switch 'E' Short To Ground

What causes a B2188 error code?

The most common causes of B2188 include: Wiring harness damage; Short circuit in switch; Contact corrosion; Damage to wire insulation.

How do I fix a B2188 diagnostic trouble code?

To fix B2188: Check the condition of the wiring harness at the trunk hatch. Inspect the rear wiper switch contacts. Ring the circuit for short circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2188?

Limited driving only, diagnose soon

How much does it cost to fix B2188?

The estimated repair cost for B2188 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

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