OBD Guide
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P1ADC

Drive Motor 1 Control Module Long Term Memory Performance

P1ADC is an OBD-II diagnostic trouble code meaning: Drive Motor 1 Control Module Long Term Memory Performance. Common causes: control module software error, controller memory corruption. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable operation of the hybrid system
  • Speed limit

Causes

  • Control module software error
  • Controller memory corruption
  • Module power problems
  • CAN bus fault
  • Mechanical damage to the module

How to Fix

  1. Diagnostics using a hybrid system scanner
  2. Checking for software updates for the control module
  3. Testing power and ground circuits
  4. Checking CAN bus communication
  5. Replacing the control module if necessary

Related codes

P1ADDP1ADBP1ADE

FAQ

What does the P1ADC code mean?

P1ADC is an OBD-II diagnostic trouble code that indicates: Drive Motor 1 Control Module Long Term Memory Performance

What causes a P1ADC error code?

The most common causes of P1ADC include: Control module software error; Controller memory corruption; Module power problems; CAN bus fault.

How do I fix a P1ADC diagnostic trouble code?

To fix P1ADC: Diagnostics using a hybrid system scanner. Checking for software updates for the control module. Testing power and ground circuits. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1ADC?

Limited driving only, diagnose soon

How much does it cost to fix P1ADC?

The estimated repair cost for P1ADC is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat