OBD Guide

P1D02

All CAN Malfunction Generator Motor Control Module - Battery Condition Monitor Module

P1D02 is an OBD-II diagnostic trouble code meaning: All CAN Malfunction Generator Motor Control Module - Battery Condition Monitor Module. Common causes: open or short circuit in the can bus, generator control module malfunction. Estimated repair cost: $17–89.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Battery charging problems
  • Incorrect operation of electrical equipment
  • Reduced engine performance
  • Errors in other vehicle systems

Causes

  • Open or short circuit in the CAN bus
  • Generator control module malfunction
  • Problems with the battery monitoring module
  • Corrosion or poor contact in connectors
  • Software problems

How to Fix

  1. Check the integrity of the CAN bus wiring
  2. Check connectors and contacts for corrosion
  3. Scan all modules for errors
  4. Check the functionality of the generator control module
  5. Check the battery monitoring module

Related codes

FAQ

What does the P1D02 code mean?

P1D02 is an OBD-II diagnostic trouble code that indicates: All CAN Malfunction Generator Motor Control Module - Battery Condition Monitor Module

What causes a P1D02 error code?

The most common causes of P1D02 include: Open or short circuit in the CAN bus; Generator control module malfunction; Problems with the battery monitoring module; Corrosion or poor contact in connectors.

How do I fix a P1D02 diagnostic trouble code?

To fix P1D02: Check the integrity of the CAN bus wiring. Check connectors and contacts for corrosion. Scan all modules for errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1D02?

Limited driving only, diagnose soon

How much does it cost to fix P1D02?

The estimated repair cost for P1D02 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat