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Home › Chevrolet › 2006 › Epica LT › Repair and Diagnosis › Engine Performance › System › Engine Control System - 2.5L (LBK) - DTC P2122 To DTC P2422 › DTC P2159 › Circuit/System Verification

Circuit/System Verification

  1. Start the engine, observe the rough road sensor voltage parameter. The reading should be between 1.1-3.7 volts.
  2. If the vehicle passes the Circuit/System Verification Test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.
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