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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISELECTRICALINSTRUMENT PANEL SYSTEM DISPLAYS, GAUGES AND CONSOLEDIAGNOSTIC INFORMATION AND PROCEDURESSPEEDOMETER AND/OR ODOMETER INACCURATE OR INOPERATIVE
2006 Chevrolet Cobalt SS, 4D Sedan, Standard

Speedometer and/or Odometer Inaccurate or Inoperative

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Speedometer and/or Odometer Inaccurate or Inoperative
Speedometer and/or Odometer Inaccurate or Inoperative

Step Action 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 drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Start the engine.
  4. Place the transmission into drive for an automatic transmission or third gear for a manual transmission.
  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 4 
4 Verify that the body control module (BCM) is configured and setup correctly. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Is the BCM configured and setup correctly?		 Go to Step 5  Go to Step 6 
5 Replace the instrument panel cluster (IPC). Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Did you complete the replacement?		 Go to Step 7  -
6 Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Did you complete the replacement?		 Go to Step 7  -
7 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
RENDER: 1.0x

NO RELATED

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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.