LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2020 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Controls And Fuel - 1.5L (LYX) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0351-P0354, P2300, P2301, P2303, P2304, P2306, P2307, P2309, or P2310 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Engine - Running
  2. Verify the scan tool parameter :
    • Ignition Coil 1 - 4 Control Circuit High Voltage Test Status = OK or Not Run
    • Ignition Coil 1 - 4 Control Circuit Low Voltage Test Status = OK or Not Run
    • Ignition Coil 1 - 4 Control Circuit Open Test Status = OK or Not Run
    • If not the specified state 

      Refer to : Circuit/System Testing

    • Go to next step : If the specified state 
  3. Verify the scan tool parameter :
    • Ignition Coil 1 - 4 Control Circuit High Voltage Test Status = OK or Not Run
    • Ignition Coil 1 - 4 Control Circuit Low Voltage Test Status = OK or Not Run
    • Ignition Coil 1 - 4 Control Circuit Open Test Status = OK or Not Run
    • Perform the action while monitoring the parameter :
    • Wiggle the harness and connector : T8 Ignition Coil
    • Wiggle the harness and connector : K20 Engine Control Module
    • If not the specified state 

      Repair as necessary - Wiring / Terminal(s) / Electrical Connector(s)

    • Go to next step : If the specified state 
  4. 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.

    Verify the DTC does not set.

    • If the DTC sets 

      Refer to : Circuit/System Testing

    • Go to next step : If the DTC is not set 
  5. All OK.