OBD Guide
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P1D64

Collision Detection Signal Malfunction

P1D64 is an OBD-II diagnostic trouble code meaning: Collision Detection Signal Malfunction. Common causes: open or short circuit in the sensor circuit, airbag control module malfunction. Estimated repair cost: $56–222.

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

Symptoms

  • Airbag light is on
  • The security system is not activated during testing
  • Errors in other passive safety systems
  • Malfunctions in the operation of shock sensors

Causes

  • Open or short circuit in the sensor circuit
  • Airbag control module malfunction
  • Wiring harness damage
  • Shock sensor malfunction
  • System power problems

How to Fix

  1. Check the integrity of the sensor circuit
  2. Diagnose the airbag control module
  3. Inspect the wiring harness for damage
  4. Check shock sensors
  5. Repair only from an authorized dealer

Related codes

B0001B0020

FAQ

What does the P1D64 code mean?

P1D64 is an OBD-II diagnostic trouble code that indicates: Collision Detection Signal Malfunction

What causes a P1D64 error code?

The most common causes of P1D64 include: Open or short circuit in the sensor circuit; Airbag control module malfunction; Wiring harness damage; Shock sensor malfunction.

How do I fix a P1D64 diagnostic trouble code?

To fix P1D64: Check the integrity of the sensor circuit. Diagnose the airbag control module. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1D64?

Do not drive — repair immediately

How much does it cost to fix P1D64?

The estimated repair cost for P1D64 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat