OBD Guide

P0862

Gear Shift Control Module A Communication Circuit High

P0862 is an OBD-II diagnostic trouble code meaning: Gear Shift Control Module A Communication Circuit High. Common causes: damage to the shift module wiring harness, short circuit in the circuit. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect gear shifting
  • Check Engine light comes on
  • The gearbox goes into emergency mode
  • Delays when shifting gears
  • Loss of engine power

Causes

  • Damage to the shift module wiring harness
  • Short circuit in the circuit
  • Shift control module malfunction
  • Grounding problems
  • Interference in the electrical system

How to Fix

  1. Check the integrity of the module wiring harness
  2. Check the voltage in the communication circuit
  3. Check module grounding
  4. Replace the shift control module if necessary
  5. Reset error and test drive

Related codes

Error P0862 by Vehicle Brand

FAQ

What does the P0862 code mean?

P0862 is an OBD-II diagnostic trouble code that indicates: Gear Shift Control Module A Communication Circuit High

What causes a P0862 error code?

The most common causes of P0862 include: Damage to the shift module wiring harness; Short circuit in the circuit; Shift control module malfunction; Grounding problems.

How do I fix a P0862 diagnostic trouble code?

To fix P0862: Check the integrity of the module wiring harness. Check the voltage in the communication circuit. Check module grounding. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0862?

Limited driving only, diagnose soon

How much does it cost to fix P0862?

The estimated repair cost for P0862 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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