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Home >> Chevrolet >> 2023 >> Camaro ZL1, 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Automatic Transmission - 10L60, 10L80 Or 10L90 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0716, P0717, P07BF, P07C0, P1783, or P17CE >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
    NOTE:

    It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.

  1. Ignition/Vehicle & All vehicle systems - Off
  2. Disconnect the electrical connector: X1 @ T12 Automatic Transmission Assembly
  3. Ignition - On/Vehicle - In Service Mode
  4. Test for 8.3 to 9.6 V between the test points: 9 V Reference circuit terminal 8 & Ground
    • If less than 8.3 V 
    1. Connect the electrical connector.X1 @ T12 Automatic Transmission Assembly
    2. Ignition/Vehicle - Off
    3. Disconnect the electrical connector: X1 @ T12 Automatic Transmission Assembly
    4. Disconnect the electrical connector: K71 Transmission Control Module
    5. Test for infinite resistance between the test points: 9 V Reference circuit terminal 8 @ Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    6. Test for less than 2 ohms between the test points: 9 V Reference circuit terminal 8 @ Component harness & Terminal 8 @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component: K71 Transmission Control Module
    • If greater than 9.6 V 
    1. Connect the electrical connector.X1 @ T12 Automatic Transmission Assembly
    2. Ignition/Vehicle - Off
    3. Disconnect the electrical connector: X1 @ T12 Automatic Transmission Assembly
    4. Disconnect the electrical connector: K71 Transmission Control Module
    5. Ignition - On/Vehicle - In Service Mode
    6. Test for less than 1 V between the test points: 9 V Reference circuit terminal 8@Component harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V - Replace the component: K71 Transmission Control Module
    • Go to next step: If between 8.3 and 9.6 V 
  5. Ignition/Vehicle - Off
  6. Install - EL-38522 Variable Signal Generator
    • Voltage - 5 V
    • Frequency - 300 Hz
    • Duty Cycle - 50%
    • Black lead @ Ground
    • Red lead @ Signal circuit terminal 1
  7. Ignition - On/Vehicle - In Service Mode
  8. Verify the scan tool parameter: Transmission Input Speed = 442 to 462 RPM
    • If not between 442 and 462 RPM 
    1. Connect the electrical connector.X1 @ T12 Automatic Transmission Assembly
    2. Ignition/Vehicle - Off
    3. Disconnect the electrical connector: X1 @ T12 Automatic Transmission Assembly
    4. Disconnect the electrical connector: K71 Transmission Control Module
    5. Ignition - On/Vehicle - In Service Mode
    6. Test for less than 1 V between the test points: Signal circuit terminal 1 @ Component harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • Go to next step: If less than 1 V
    7. Connect the electrical connector.X1 @ T12 Automatic Transmission Assembly
    8. Connect the electrical connector.K71 Transmission Control Module
    9. Ignition/Vehicle - Off
    10. Disconnect the electrical connector: X1 @ T12 Automatic Transmission Assembly
    11. Disconnect the electrical connector: K71 Transmission Control Module
    12. Test for infinite resistance between the test points: Signal circuit terminal 1 @ Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    13. Test for less than 2 ohms between the test points: Signal circuit terminal 1 @ Component harness & Terminal 12 @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component: K71 Transmission Control Module
    • Go to next step: If between 442 and 462 RPM 
  9. Connect the electrical connector: X1 @ T12 Automatic Transmission Assembly
  10. Ignition/Vehicle - Off
  11. Remove the component: Automatic Transmission Fluid Pan
  12. Disconnect the electrical connector: B14C Transmission Input Shaft Speed Sensor
  13. Connect the electrical connector.X1 @ T12 Automatic Transmission Assembly
  14. Ignition - On/Vehicle - In Service Mode
  15. Test for 8.3 to 9.6 V between the test points: 9 V Reference circuit terminal 2 & Ground
    • If not between 8.3 and 9.6 V 

      Replace the component: Automatic Transmission Wiring Harness

    • Go to next step: If between 8.3 and 9.6 V 
  16. Ignition Off
  17. Install - EL-38522 Variable Signal Generator
    • Voltage - 5 V
    • Frequency - 300 Hz
    • Duty Cycle - 50%
    • Black lead @ Ground
    • Red lead @ Signal circuit terminal 1(harness side)
  18. Ignition - On/Vehicle - In Service Mode
  19. Verify the scan tool parameter: Transmission Input Speed = 442 to 462 RPM
    • If not between 442 and 462 RPM 

      Replace the component: Automatic Transmission Wiring Harness

    • Go to next step: If between 442 and 462 RPM 
  20. Test or replace the component: B14C Transmission Input Shaft Speed Sensor
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