OBD Guide
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P1439

Motor Drive Module Short Circuit Sensor Problem

P1439 is an OBD-II diagnostic trouble code meaning: Motor Drive Module Short Circuit Sensor Problem. Common causes: short circuit in the drive module sensor circuit, drive module sensor failure. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • The car goes into emergency mode

Causes

  • Short circuit in the drive module sensor circuit
  • Drive module sensor failure
  • Wiring harness damage
  • Drive module problems
  • Corrosion or oxidation of contacts

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Check the resistance of the drive module sensor
  3. Inspect contacts for corrosion
  4. If necessary, replace the sensor or drive module
  5. Reset the error and check for its reappearance

Related codes

P1440P1438P1441

Error P1439 by Vehicle Brand

BMWMazdaVolkswagen

FAQ

What does the P1439 code mean?

P1439 is an OBD-II diagnostic trouble code that indicates: Motor Drive Module Short Circuit Sensor Problem

What causes a P1439 error code?

The most common causes of P1439 include: Short circuit in the drive module sensor circuit; Drive module sensor failure; Wiring harness damage; Drive module problems.

How do I fix a P1439 diagnostic trouble code?

To fix P1439: Check the integrity of the wiring harness to the sensor. Check the resistance of the drive module sensor. Inspect contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1439?

Yes, but get it checked soon

How much does it cost to fix P1439?

The estimated repair cost for P1439 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat