Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2009 >> Chevy Express G2500, Van Cargo Extended, 6.6 6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 6.6L LMM - DTC P1224 To DTC P2463 >> DTC P154C >> Circuit/System Verification

Circuit/System Verification

Observe the following with a scan tool.

  1. The IA Heater Driver Open parameter should display OK.
  2. Engine running, observe the DTC information with a scan tool. DTC P154C should not set.
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
scientia non olet · About Mike's Workshop Manuals