OBD Guide
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P1C57

Reductant Control Module Shutdown Crash Event Detected

P1C57 is an OBD-II diagnostic trouble code meaning: Reductant Control Module Shutdown Crash Event Detected. Common causes: airbag deployment, emergency shutdown of the scr system. 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 comes on
  • Reduced engine power
  • Increased NOx emissions
  • SCR system does not work
  • Possible security error messages

Causes

  • Airbag deployment
  • Emergency shutdown of the SCR system
  • Damage to the reductant control module
  • Problems with module wiring harness
  • Car security system malfunction

How to Fix

  1. Conduct security system diagnostics
  2. Check the condition of the reductant control module
  3. Inspect the wiring harness for damage
  4. Reset the error using an OBD-II scanner
  5. If necessary, replace the reductant control module
  6. Repair only from an authorized dealer

Related codes

P1C56P1C58B0001

FAQ

What does the P1C57 code mean?

P1C57 is an OBD-II diagnostic trouble code that indicates: Reductant Control Module Shutdown Crash Event Detected

What causes a P1C57 error code?

The most common causes of P1C57 include: Airbag deployment; Emergency shutdown of the SCR system; Damage to the reductant control module; Problems with module wiring harness.

How do I fix a P1C57 diagnostic trouble code?

To fix P1C57: Conduct security system diagnostics. Check the condition of the reductant control module. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1C57?

Do not drive — repair immediately

How much does it cost to fix P1C57?

The estimated repair cost for P1C57 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat