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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Fixed And MOVEABLE Window System) >> Diagnostic Information and Procedures >> Power Windows Malfunction (A55 Without A33) >> Circuit/System Testing >> Test 2

Test 2

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector: S79P Window Switch - Passenger
  3. Connect a test lamp between the test points: Control circuit terminal 3 & Control circuit terminal 6
  4. Ignition - On / Vehicle - In Service Mode
  5. Operate the component: Right Front Window Switch @ S79D Window Switch - Driver

    Verify the test lamp state:

    • Not Pressed=Test lamp Off
    • Pulled - Up=Test lamp On
    • Pressed - Down=Test lamp On
    • If not the specified state 
    1. Ignition/Vehicle - Off & Remove - Test lamp
    2. Disconnect the electrical connector: S79D Window Switch - Driver
    3. Ignition - On / Vehicle - In Service Mode
    4. Test for less than 1 V between the test points:
      • Control circuit terminal 3 @ Component harness & Ground
      • Control circuit terminal 6 @ Component harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V
    1. Ignition/Vehicle - Off
    2. Test for infinite resistance between the test points:
      • Control circuit terminal 3 @ Component harness & Ground
      • Control circuit terminal 6 @ Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • If less than infinite resistance
    1. Test for less than 2 Ω between the test points:
      • {LHD} Control circuit terminal 3 @ Component harness & Terminal 7 @ S79D Window Switch - Driver
      • {LHD} Control circuit terminal 6 @ Component harness & Terminal 6 @ S79D Window Switch - Driver
      • {RHD} Control circuit terminal 3 @ Component harness & Terminal 5 @ S79D Window Switch - Driver
      • {RHD} Control circuit terminal 6 @ Component harness & Terminal 4 @ S79D Window Switch - Driver
        • If 2 Ω or greater - Repair the open/high resistance in the circuit.
        • If less than 2 Ω - Replace the component: S79D Window Switch - Driver
    • If the specified state 
  6. Ignition/Vehicle - Off
  7. Connect the electrical connector: S79P Window Switch - Passenger
  8. Disconnect the electrical connector: M74P Window Motor - Passenger
  9. Connect a test lamp between the test points: Control circuit terminal 1 & Control circuit terminal 2
  10. Ignition - On / Vehicle - In Service Mode
  11. Operate the component: S79P Window Switch - Passenger

    Verify the test lamp state:

    • Not Pressed=Test lamp Off
    • Pulled - Up=Test lamp On
    • Pressed - Down=Test lamp On
    • If not the specified state 
    1. Ignition/Vehicle - Off & Remove - Test lamp
    2. Disconnect the electrical connector: S79P Window Switch - Passenger
    3. Ignition - On / Vehicle - In Service Mode
    4. Test for less than 1 V between the test points:
      • Control circuit terminal 1 @ Component harness & Ground
      • Control circuit terminal 2 @ Component harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V
    1. Ignition/Vehicle - Off
    2. Test for infinite resistance between the test points:
      • Control circuit terminal 1 @ Component harness & Ground
      • Control circuit terminal 2 @ Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • If less than infinite resistance
    1. Test for less than 2 Ω between the test points:
      • Control circuit terminal 1 @ Component harness & Terminal 4 @ Component harness
      • Control circuit terminal 2 @ Component harness & Terminal 1 @ Component harness
        • If 2 Ω or greater - Repair the open/high resistance in the circuit.
        • If less than 2 Ω - Replace the component: S79P Window Switch - Passenger
    • If the specified state 
  12. Test or replace the component: M74P Window Motor - Passenger