Pinpoint Test E: The Speedometer/Odometer Is Inoperative

WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

E1 RETRIEVE THE RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND POWERTRAIN CONTROL MODULE (PCM) SELF-TESTS
- Check for recorded PCM DTCs from the continuous and on-demand self-tests.
- Are any PCM DTCs recorded?
Yes: REFER to the INTRODUCTION - GASOLINE article to continue diagnosis.

No: For an inoperative or inaccurate speedometer, GO to E2.

For an inoperative odometer, GO to E3.
E2 CARRY OUT THE INSTRUMENT CLUSTER SPEEDOMETER ACTIVE COMMAND USING THE DIAGNOSTIC TOOL
- Key in ON position.
- Enter the following diagnostic mode on the scan tool: Instrument Cluster Active Command.
- Select the instrument cluster speedometer active command. Trigger the speedometer on. Observe the speedometer. The speedometer should start at 0 and move to 193 km/h (120 mph).
- Does the speedometer reading increase within the specifications?
Yes: GO to E5.

No: GO to E4.
E3 MONITOR THE MESSAGE CENTER CIRCUIT DISPLAYS
- Select the message center active command. Trigger the message center active command and illuminate the display segments.
- Do the message center display segments illuminate correctly?
Yes: GO to E5.

No: GO to E4.
E4 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect the instrument cluster connector.
- Check for:
  - corrosion
  - pushed-out pins
- Connect the instrument cluster connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes: INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.

No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
E5 CHECK FOR CORRECT PCM OPERATION
- Disconnect all the PCM connectors.
- Check for:
  - corrosion
  - pushed-out pins
- Connect all the PCM connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes: INSTALL a new PCM. REFER to INSTALLATION . TEST the system for normal operation.

No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.