OBD Guide
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C190D

Rear Control Board Overheat

C190D is an OBD-II diagnostic trouble code meaning: Rear Control Board Overheat. Common causes: short circuit in wiring harness, rear control board fault. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Airbag light comes on
  • Temporarily disabling the restraint system
  • Unstable operation of belt pretensioners or curtains

Causes

  • Short circuit in wiring harness
  • Rear control board fault
  • Overheating due to poor ventilation
  • Damage to solenoid valves (solenoids)

How to Fix

  1. Check wiring harness for damage
  2. Diagnose the rear control board
  3. Replace faulty components
  4. Ensure proper ventilation of the board

Related codes

B0001B0002B1000

FAQ

What does the C190D code mean?

C190D is an OBD-II diagnostic trouble code that indicates: Rear Control Board Overheat

What causes a C190D error code?

The most common causes of C190D include: Short circuit in wiring harness; Rear control board fault; Overheating due to poor ventilation; Damage to solenoid valves (solenoids).

How do I fix a C190D diagnostic trouble code?

To fix C190D: Check wiring harness for damage. Diagnose the rear control board. Replace faulty components. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C190D?

Do not drive — repair immediately

How much does it cost to fix C190D?

The estimated repair cost for C190D is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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