OBD Guide

P1002

Ignition Key Off Timer Performance Too Slow

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

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