OBD Guide
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P165C

EWS Data No Available Storage Possibility

P165C is an OBD-II diagnostic trouble code meaning: EWS Data No Available Storage Possibility. Common causes: immobilizer malfunction, problems with wiring harness between ecu and ews. Estimated repair cost: $56–167.

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

Symptoms

  • Engine won't start
  • Check Engine Light Is On
  • Immobilizer problems
  • The car may not respond to the ignition key

Causes

  • Immobilizer malfunction
  • Problems with wiring harness between ECU and EWS
  • Engine control unit malfunction
  • Damaged ignition key or chip

How to Fix

  1. Check the condition of the ignition key and its chip
  2. Diagnose the immobilizer for malfunctions
  3. Check the integrity of the wiring harness between the ECU and EWS
  4. Scan the system for other errors
  5. Contact your dealer to reprogram the immobilizer

Related codes

P165BP165D

FAQ

What does the P165C code mean?

P165C is an OBD-II diagnostic trouble code that indicates: EWS Data No Available Storage Possibility

What causes a P165C error code?

The most common causes of P165C include: Immobilizer malfunction; Problems with wiring harness between ECU and EWS; Engine control unit malfunction; Damaged ignition key or chip.

How do I fix a P165C diagnostic trouble code?

To fix P165C: Check the condition of the ignition key and its chip. Diagnose the immobilizer for malfunctions. Check the integrity of the wiring harness between the ECU and EWS. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P165C?

Do not drive — repair immediately

How much does it cost to fix P165C?

The estimated repair cost for P165C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat