OBD Guide
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P1002

Ignition Key Off Timer Performance Too Slow

P1002 is an OBD-II diagnostic trouble code meaning: Ignition Key Off Timer Performance Too Slow. Common causes: faulty ignition off timer, electrical wiring problems. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • The car may not turn off completely after turning the key
  • Battery low
  • Dashboard lights stay on
  • Problems starting the engine

Causes

  • Faulty ignition off timer
  • Electrical wiring problems
  • Ignition relay malfunction
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the condition of the fuses
  2. Diagnose the ignition off timer
  3. Check wiring and connections
  4. Replacing a faulty timer if necessary
  5. Reflashing or replacing the ECU if problems are detected

Related codes

P1001P1003P1004

FAQ

What does the P1002 code mean?

P1002 is an OBD-II diagnostic trouble code that indicates: Ignition Key Off Timer Performance Too Slow

What causes a P1002 error code?

The most common causes of P1002 include: Faulty ignition off timer; Electrical wiring problems; Ignition relay malfunction; Problems with the engine control unit (ECU).

How do I fix a P1002 diagnostic trouble code?

To fix P1002: Check the condition of the fuses. Diagnose the ignition off timer. Check wiring and connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1002?

Yes, but get it checked soon

How much does it cost to fix P1002?

The estimated repair cost for P1002 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat