OBD Guide
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C1527

Gear R Switch Error

C1527 is an OBD-II diagnostic trouble code meaning: Gear R Switch Error. Common causes: open or short circuit in wiring harness, reverse position sensor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect transmission display on the dashboard
  • Problems engaging reverse gear
  • Check Engine light comes on

Causes

  • Open or short circuit in wiring harness
  • Reverse position sensor malfunction
  • Poor contact in connectors
  • Transmission control unit malfunction

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Check the resistance of the reverse gear position sensor
  3. Replace sensor if necessary
  4. Check the operation of the transmission control unit

Related codes

C1526C1528P0705

FAQ

What does the C1527 code mean?

C1527 is an OBD-II diagnostic trouble code that indicates: Gear R Switch Error

What causes a C1527 error code?

The most common causes of C1527 include: Open or short circuit in wiring harness; Reverse position sensor malfunction; Poor contact in connectors; Transmission control unit malfunction.

How do I fix a C1527 diagnostic trouble code?

To fix C1527: Check the integrity of the wiring harness and connectors. Check the resistance of the reverse gear position sensor. Replace sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1527?

Limited driving only, diagnose soon

How much does it cost to fix C1527?

The estimated repair cost for C1527 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat