OBD Guide

P1ADD

Drive Motor 2 Control Module Long Term Memory Performance

P1ADD is an OBD-II diagnostic trouble code meaning: Drive Motor 2 Control Module Long Term Memory Performance. Common causes: engine control module 2 malfunction, module power problems. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–556 (est.)

Symptoms

  • Reduced engine power
  • Unstable operation of the hybrid system
  • Check Engine Light Illuminated
  • Dips during acceleration
  • Increased fuel consumption

Causes

  • Engine control module 2 malfunction
  • Module power problems
  • Wiring harness fault
  • Software error in the module
  • Damage to the module's internal memory

How to Fix

  1. Check connections and condition of wiring harness
  2. Check the module supply voltage
  3. Scan the module for additional errors
  4. Try to reflash the control module
  5. Replace Engine Control Module 2
  6. Repair only from an authorized dealer

Related codes

FAQ

What does the P1ADD code mean?

P1ADD is an OBD-II diagnostic trouble code that indicates: Drive Motor 2 Control Module Long Term Memory Performance

What causes a P1ADD error code?

The most common causes of P1ADD include: Engine control module 2 malfunction; Module power problems; Wiring harness fault; Software error in the module.

How do I fix a P1ADD diagnostic trouble code?

To fix P1ADD: Check connections and condition of wiring harness. Check the module supply voltage. Scan the module for additional errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1ADD?

Do not drive — repair immediately

How much does it cost to fix P1ADD?

The estimated repair cost for P1ADD is $167–556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat