Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Operate the component: Clutch Pedal
Verify the component/system operates correctly: Clutch Pedal
- If the component/system does not operate correctly
  Refer to: Symptoms - Clutch
- Go to next step: If the component/system operates correctly
Operate the component: Transmission - Road test the vehicle.
Verify the component/system operates correctly: Transmission
- If the component/system does not operate correctly
  Refer to: Symptoms - Manual Transmission
- Go to next step: If the component/system operates correctly
Ignition - On / Vehicle - In Service Mode & Engine - Off
Verify there are no DTCs set related to the following component/system:
- B14A Transmission Output Shaft Speed Sensor/B115 Vehicle Speed Sensor
- B25B Clutch Pedal Position Sensor
- B26 Crankshaft Position Sensor
- B227 Gear Position Sensor
- If other DTCs are set
  Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If no other DTCs are set
Verify the scan tool parameter: Output Shaft Speed Sensor = The value should change smoothly and gradually as the vehicle speed is increased and decreased.
- If the value does not change smoothly and gradually
  Refer to: DTC P0502 or P0503
- Go to next step: If the value changes smoothly and gradually
Verify the scan tool parameter: Gear Shift Position = Matches the current selector lever position
- If not the specified state
  Refer to: DTC P18C4-P18C7
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
  Repeat the procedure starting at step 2
- Go to next step: If the DTC does not set
All OK.