2002 Chrysler Intrepid BaseFACTORY OEM SERVICE PROCEDURE

Temperature Gauge Not Operating Properly

NOTE: After making any repairs, perform BODY VERIFICATION TEST  under VERIFICATION TESTS.

Possible Causes:

  • Attempt To Communicate With The PCM
  • Engine Trouble Codes
  • Instrument Cluster Self Test
  • Powertrain Control Module
  • Observe The Temperature Display In The Instrument Cluster
  • Observe The Temperature Display In The PCM

Testing

  1. Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Powertrain Control Module (PCM). If scan tool communicates with PCM, go to next step. If scan tool does not communicate with PCM, perform NO RESPONSE FROM PCM (PCI BUS)  test under COMMUNICATION SYSTEMS.
  2. Turn ignition off. To start gauges self-test, press and hold trip button on instrument cluster while turning ignition switch forward one position from LOCK to OFF position, then release trip button. If temperature gauge sweeps from "C" to "H" then back to "C", go to next step. If temperature gauge does not sweep from "C" to "H" then back to "C", replace instrument cluster. See ANALOG INSTRUMENT PANELS - CONCORDE, INTREPID & 300M article.
  3. Using scan tool, retrieve PCM DTCs. If no PCM DTCs exist, go to next step. If any PCM DTCs exist, see SELF-DIAGNOSTICS - CONCORDE, INTREPID & 300M article in ENGINE PERFORMANCE.
  4. Start engine. Using scan tool, select ENGINE, then sensors. Read ENGINE TEMPERATURE. If approximately the correct engine temperature is displayed, leave engine running and go to next step. If approximately the correct engine temperature is not displayed, replace PCM. See POWERTRAIN CONTROL MODULE  under REMOVAL & INSTALLATION.
  5. Using scan tool, select BODY, ELECTRO/MECH CLUSTER. Read ENGINE TEMPERATURE. If approximately the correct engine temperature is displayed, replace instrument cluster. See ANALOG INSTRUMENT PANELS - CONCORDE, INTREPID & 300M article. If approximately the correct engine temperature is not displayed, replace PCM. See POWERTRAIN CONTROL MODULE  under REMOVAL & INSTALLATION.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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