2002 Chrysler PT Cruiser Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Speedometer Not Operating Properly

WARNING: This page is about a different car, the 2002 Dodge Ram Wagon, 2002 Dodge Ram Van, 2001 Dodge Ram Wagon, and 2001 Dodge Ram Van. However, it is still accessible from the selected car via links, so may be relevant.

Possible Causes:

  1. Instrument Cluster
  2. Engine Trouble Codes
  3. Pinion Factor Setting
  4. Instrument Cluster (Inaccurate Speedometer)

Testing

  1. Turn ignition off. Push and hold trip/odometer reset button while turning ignition switch to RUN position. Release trip/odometer reset button to start self-test. Observe speedometer. Speedometer should reach specified calibration points. See INSTRUMENT CLUSTER CALIBRATION POINTS  table under SELF-DIAGNOSTIC SYSTEM. If speedometer reaches specified calibration points, go to next step. If speedometer does not reach specified calibration points, replace electro-mechanical instrument cluster. See ELECTRO-MECHANICAL INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION.
  2. Using scan tool, read ENGINE DTCs. If no engine DTCs are present, go to next step. If any engine DTCs are present, perform appropriate test(s) in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
  3. Raise and support all wheels. Start engine and place gear selector in Drive. Using scan tool, observe vehicle speed. If vehicle speed on scan tool matches speedometer, check for proper pinion factor setting (number of tone wheel teeth out of range) and tire calibration (tire revolutions per mile out of range). See appropriate ANTI-LOCK article in BRAKES. If vehicle speed on scan tool does not match speedometer, replace electro-mechanical instrument cluster. See ELECTRO-MECHANICAL INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION.
Chapter Navigation
Return to Chapter: Instrument Cluster
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.