OBD Guide
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C146A

SRR Solenoid Circuit

C146A is an OBD-II diagnostic trouble code meaning: SRR Solenoid Circuit. Common causes: open or short circuit in srr solenoid wiring harness, srr solenoid valve malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Airbag malfunction indicator light is on
  • Error message on the dashboard
  • Side curtain airbags may not deploy in a crash

Causes

  • Open or short circuit in SRR solenoid wiring harness
  • SRR solenoid valve malfunction
  • Problems with the airbag control unit
  • Corrosion or poor contact in connectors

How to Fix

  1. Conduct diagnostics of the passive safety system
  2. Check the integrity of the wiring harness and connectors
  3. Check the resistance and operation of the SRR solenoid
  4. If necessary, replace the solenoid or repair the wiring harness.
  5. Reset the error and check the system

Related codes

B0001B0002B0010

FAQ

What does the C146A code mean?

C146A is an OBD-II diagnostic trouble code that indicates: SRR Solenoid Circuit

What causes a C146A error code?

The most common causes of C146A include: Open or short circuit in SRR solenoid wiring harness; SRR solenoid valve malfunction; Problems with the airbag control unit; Corrosion or poor contact in connectors.

How do I fix a C146A diagnostic trouble code?

To fix C146A: Conduct diagnostics of the passive safety system. Check the integrity of the wiring harness and connectors. Check the resistance and operation of the SRR solenoid. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C146A?

Do not drive — repair immediately

How much does it cost to fix C146A?

The estimated repair cost for C146A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat