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P1000 – OBD System Readiness Test Not Complete

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Symptoms

  • Check engine light
  • Emissions test failure
  • Incomplete monitors
  • No drivability issues
  • Pending codes

Causes

  • Battery disconnected
  • ECU reset
  • Drive cycle incomplete
  • Recent repairs
  • Cold weather

Diagnosis

  • Check drive cycle
  • Scan readiness monitors
  • Check battery voltage
  • Inspect for pending codes
  • Review recent repairs

Repair

  • Complete drive cycle
  • Fix pending codes
  • Stabilize battery voltage
  • Clear codes and retest
  • Warm up engine
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