OBD Guide
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C1204

ABS Rear Dump Valve Circuit Short To Battery

C1204 is an OBD-II diagnostic trouble code meaning: ABS Rear Dump Valve Circuit Short To Battery. Common causes: wiring harness damage, abs valve malfunction. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • ABS light is on
  • Disabling the ABS system
  • Unstable brake operation
  • Loss of stabilization system functions

Causes

  • Wiring harness damage
  • ABS valve malfunction
  • Short circuit in the circuit
  • Problems in the ABS control unit

How to Fix

  1. Check wiring harness for damage
  2. Check ABS valve resistance
  3. Check circuit for short circuit
  4. Replace faulty valve or harness
  5. Check ABS control unit

Related codes

C1201C1202C1203

FAQ

What does the C1204 code mean?

C1204 is an OBD-II diagnostic trouble code that indicates: ABS Rear Dump Valve Circuit Short To Battery

What causes a C1204 error code?

The most common causes of C1204 include: Wiring harness damage; ABS valve malfunction; Short circuit in the circuit; Problems in the ABS control unit.

How do I fix a C1204 diagnostic trouble code?

To fix C1204: Check wiring harness for damage. Check ABS valve resistance. Check circuit for short circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1204?

Limited driving only, diagnose soon

How much does it cost to fix C1204?

The estimated repair cost for C1204 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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