LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Engine Controls And Fuel - 1.6L (LWC) - DTC P0243 To DTC P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0685-P0687, P0689, P0690, P1682, P16A7, P16AF, or P16B3 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On / Vehicle - In Service Mode
  2. Verify no other DTCs are set.
    • Go to next step: If no other DTCs are set 
  3. Ignition - Cycle Off and On & Cycle On and Off

    Verify a click can be heard or felt at the component when the scan tool control function was commanded: KR75 Engine Controls Ignition Relay

    • If a click cannot be heard or felt 

      Refer to: Circuit/System Testing

    • Go to next step: If a click can be heard or felt 
  4. Verify the following parameters are within 3 V of each other:
    • Ignition 1 Signal
    • Engine Controls Ignition Relay Feedback Signal
    • If not within 3 V of each other 

      Refer to: Circuit/System Testing

    • Go to next step: If within 3 V of each other 
  5. 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 does not set 
  6. All OK.
scientia non olet · About LEMON Manuals