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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Instrument Panel System Displays And Gauges) >> Diagnostic Information and Procedures >> Tachometer Inaccurate or Inoperative (Trax) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify no DTC is set.
    • If any DTC is set 

      diagnose DTCs first.

    • If no DTCs are set 
  2. Ignition ON, perform the Tachometer Gauge Sweep test with the scan tool, verify tachometer sweeps from low to high position.
    • If tachometer does not sweep 

      replace the P16 Instrument Cluster.

    • If tachometer sweeps properly 
  3. Engine running, verify the tachometer value matches the Engine Speed parameter on the scan tool.
    • If the value does not match 

      replace the P16 Instrument Cluster.

    • If the tachometer value matches the value displayed on the scan tool 
  4. Replace the K20 Engine Control Module.
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