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Home >> Chevrolet >> 2008 >> Optra LS, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Displays And Gages >> Diagnostic Information and Procedures >> Speedometer and/or Odometer Inaccurate or Inoperative

Speedometer and/or Odometer Inaccurate or Inoperative

Step Action Value(s) Yes No
1
  1. Connect a scan tool.
  2. Inspect for engine control diagnostic trouble codes (DTCs).
Is the vehicle speed sensor DTC set?
- Go to Diagnostic System Check - Vehicle Go to Step 2 
2
  1. Turn the ignition OFF.
  2. Disconnect the engine control module (ECM) connector.
  3. Remove the instrument cluster.
  4. Measure the continuity between the ECM terminal K6 (MR-140), terminal B23 (HV-240), terminal 51 (SIRUS D4) in Gasoline and terminal K74 in Diesel and the instrument cluster terminal B5.
Does the ohmmeter indicate the specified value?
0 Ω Go to Step 4  Go to Step 3 
3 Repair the open circuit between the instrument cluster connector terminal B5 and the ECM.
Is the repair complete?
- System OK -
4 Replace the speedometer.
Is the repair complete?
- System OK -