OBD Guide
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P1298

IDM Failure

P1298 is an OBD-II diagnostic trouble code meaning: IDM Failure. Common causes: open or short circuit in idm circuit, malfunction of the ignition control module. Estimated repair cost: $33–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)

Symptoms

  • Engine won't start
  • Misfires
  • Unstable engine operation
  • Power Loss
  • Check Engine Light Is On

Causes

  • Open or short circuit in IDM circuit
  • Malfunction of the ignition control module
  • Wiring Harness Problems
  • Contact corrosion
  • Engine ECU malfunction

How to Fix

  1. Check IDM circuit integrity
  2. Check the condition of contacts and connectors
  3. Test the ignition control module
  4. Replace the faulty module if necessary
  5. Check the operation of the engine ECU

Related codes

P1299P1300

Error P1298 by Vehicle Brand

AcuraDodgeFordHondaInfinitiJeepLincolnMazdaMercuryPlymouthPontiac

FAQ

What does the P1298 code mean?

P1298 is an OBD-II diagnostic trouble code that indicates: IDM Failure

What causes a P1298 error code?

The most common causes of P1298 include: Open or short circuit in IDM circuit; Malfunction of the ignition control module; Wiring Harness Problems; Contact corrosion.

How do I fix a P1298 diagnostic trouble code?

To fix P1298: Check IDM circuit integrity. Check the condition of contacts and connectors. Test the ignition control module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1298?

Do not drive — repair immediately

How much does it cost to fix P1298?

The estimated repair cost for P1298 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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