OBD Guide
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C2501

ABS Or BCM Or PCM Missing Message

C2501 is an OBD-II diagnostic trouble code meaning: ABS Or BCM Or PCM Missing Message. Common causes: malfunction of the abs, bcm or pcm module, open or short circuit in wiring harness. Estimated repair cost: $56–222.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • Check Engine Light Is On
  • Incorrect ABS operation
  • Problems with the passive safety system
  • Reduced engine efficiency

Causes

  • Malfunction of the ABS, BCM or PCM module
  • Open or short circuit in wiring harness
  • Problems with module power supply
  • Contact corrosion

How to Fix

  1. Check power and ground of ABS, BCM and PCM modules
  2. Inspect the wiring harness for damage
  3. Check connections on module connectors
  4. Scan all modules for additional errors
  5. If necessary, replace the faulty module

Related codes

U0100U0121U0140

FAQ

What does the C2501 code mean?

C2501 is an OBD-II diagnostic trouble code that indicates: ABS Or BCM Or PCM Missing Message

What causes a C2501 error code?

The most common causes of C2501 include: Malfunction of the ABS, BCM or PCM module; Open or short circuit in wiring harness; Problems with module power supply; Contact corrosion.

How do I fix a C2501 diagnostic trouble code?

To fix C2501: Check power and ground of ABS, BCM and PCM modules. Inspect the wiring harness for damage. Check connections on module connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C2501?

Do not drive — repair immediately

How much does it cost to fix C2501?

The estimated repair cost for C2501 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat