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Speedometer and/or Odometer Inaccurate or Inoperative

Speedometer and/or Odometer Inaccurate or Inoperative

Step Action Values Yes No
Schematic Reference:  Instrument Cluster Schematics  
1 Did you perform the Diagnostic System Check - Vehicle? - Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2
  1. Install a scan tool.
  2. Raise the vehicle's drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Start the engine.
  4. Place the transmission into drive.
  5. With the scan tool, observe the Vehicle Speed Sensor parameter in the PCM Engine Data 1 data list.
Does the Vehicle Speed Sensor parameter match the speedometer display?		 - Go to Step 3  Go to Step 4 
3 Does the odometer operate properly? - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 12 
4
  1. Turn the ignition OFF.
  2. Disconnect the cruise control module.
  3. Start the engine.
  4. Place the transmission into drive.
  5. With the scan tool, observe the Vehicle Speed Sensor parameter.
Does the Vehicle Speed Sensor parameter match the speedometer display?		 - Go to Step 8  Go to Step 5 
5
  1. Turn the ignition OFF.
  2. Disconnect the powertrain control module (PCM) connector C1.
  3. Turn the ignition ON.
  4. Measure the voltage between the vehicle speed signal circuit and a good ground.
Does the voltage measure greater than the specified value?		 9.0 V Go to Step 7  Go to Step 6 
6 Test the vehicle speed signal circuit for an open, for a high resistance, or for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 14  Go to Step 9 
7 Test the vehicle speed signal circuit for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 14  Go to Step 10 
8 Inspect for poor connections at the harness connector of the cruise control module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 14  Go to Step 11 
9 Inspect for poor connections at the harness connector of the instrument panel cluster (IPC). Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 14  Go to Step 12 
10 Inspect for poor connections at the harness connector of the PCM. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 14  Go to Step 13 
11 Replace the cruise control module. Refer to Cruise Control Module Replacement in Cruise Control.
Did you complete the replacement?		 - Go to Step 14  -
12 Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement .
Did you complete the replacement?		 - Go to Step 14  -
13
IMPORTANT: Program the replacement PCM.
Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement in Engine Controls - 3.1L.Did you complete the replacement?		 - Go to Step 14  -
14 Operate the system in order to verify the repair.
Did you correct the condition?		 - System OK Go to Step 2 
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