AutoCodes - OBDII Code List - P1002 JEEP

P1002 JEEP - Ignition Key Off Timer Performance Too Slow

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

P1002 JEEP Possible Causes

  • Faulty Ignition Switch
  • Ignition Switch harness is open or shorted
  • Ignition Switch circuit poor electrical connection
  • Faulty Cabin Compartment Node (CCN)

How do I fix code P1002 JEEP?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the P1002 JEEP code

Labor: 1.0

The cost of diagnosing the P1002 JEEP code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1002 JEEP Description

The Transmission Control Module (TCM) uses ignition off time to enable other diagnostic tests. The TCM must verify the proper operation of the ignition off timer to ensure the diagnostic tests are performed within the proper enable conditions. The ignition off timer value is stored in the Cabin Compartment Node (CCN). The CCN will send the ignition off time message to the Totally Integrated Power Module (TIPM). The TIPM broadcasts the ignition off time over the CAN bus. The TCM receives the message and then compares the ignition off timer value to the Engine Coolant Ignition off temperature and the Engine Coolant Start-up Temperature message. The Diagnostic Trouble Code (DTC) will set if the ignition off time is less than a calibrated value based on Engine Coolant Ignition off Temperature and the Engine Coolant Start-up Temperature.
OBDII Code P1002 Jeep - Ignition Key Off Timer Performance Too Slow - AutoCodes.com

More Information

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