OBD Guide

P0C18

Drive Motor B Position Sensor Not Learned

P0C18 is an OBD-II diagnostic trouble code meaning: Drive Motor B Position Sensor Not Learned. Common causes: motor position sensor b fault, damage to wiring or connectors. Estimated repair cost: $33–133.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–133 (est.)

Symptoms

  • Power Loss
  • Unstable engine operation
  • Check Engine light comes on
  • Problems with switching modes in the hybrid system

Causes

  • Motor position sensor B fault
  • Damage to wiring or connectors
  • Problems with the hybrid system control unit
  • Mechanical engine damage

How to Fix

  1. Check engine position sensor B
  2. Inspect wiring and connectors for damage
  3. Diagnose the hybrid system control unit
  4. Perform sensor training procedure

Related codes

Error P0C18 by Vehicle Brand

FAQ

What does the P0C18 code mean?

P0C18 is an OBD-II diagnostic trouble code that indicates: Drive Motor B Position Sensor Not Learned

What causes a P0C18 error code?

The most common causes of P0C18 include: Motor position sensor B fault; Damage to wiring or connectors; Problems with the hybrid system control unit; Mechanical engine damage.

How do I fix a P0C18 diagnostic trouble code?

To fix P0C18: Check engine position sensor B. Inspect wiring and connectors for damage. Diagnose the hybrid system control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0C18?

Do not drive — repair immediately

How much does it cost to fix P0C18?

The estimated repair cost for P0C18 is $33–133. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat