OBD Guide

P1AC6

Drive Motor 1 Control Module Crankshaft Position Sensor Circuit

P1AC6 is an OBD-II diagnostic trouble code meaning: Drive Motor 1 Control Module Crankshaft Position Sensor Circuit. Common causes: crankshaft position sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Difficulty starting the engine
  • Unstable engine operation
  • Power Loss
  • Check Engine Light Is On
  • Possible engine stop

Causes

  • Crankshaft position sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Problems with the engine control module
  • Mechanical damage to wiring

How to Fix

  1. Check the condition of the crankshaft position sensor
  2. Inspect the sensor circuit for damage
  3. Check the quality of contacts in the connectors
  4. Test sensor resistance
  5. If necessary, replace the sensor or repair the wiring

Related codes

FAQ

What does the P1AC6 code mean?

P1AC6 is an OBD-II diagnostic trouble code that indicates: Drive Motor 1 Control Module Crankshaft Position Sensor Circuit

What causes a P1AC6 error code?

The most common causes of P1AC6 include: Crankshaft position sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with the engine control module.

How do I fix a P1AC6 diagnostic trouble code?

To fix P1AC6: Check the condition of the crankshaft position sensor. Inspect the sensor circuit for damage. Check the quality of contacts in the connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1AC6?

Limited driving only, diagnose soon

How much does it cost to fix P1AC6?

The estimated repair cost for P1AC6 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat