Circuit/System Verification

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

WARNING:

Refer to Parking Brake and Drive Wheels Warning .

Engine idling in PARK with parking brake applied, and drive wheels chocked.
Verify with a scan tool the Transmission Fluid Pressure Switch 1, Transmission Fluid Pressure Switch 3, Transmission Fluid Pressure Switch 4, and Transmission Fluid Pressure Switch 5 parameter states are correct for the Park, Reverse, and Neutral gear select lever positions. Refer to Transmission Fluid Pressure Switch Logic .
- If any parameter value is not correct for a given gear range
  Refer to Circuit/System Testing below.
- If the parameter values are correct for all gear ranges
Verify the Transmission Fluid Pressure Switch 1, Transmission Fluid Pressure Switch 3, Transmission Fluid Pressure Switch 4, and Transmission Fluid Pressure Switch 5 parameter states are correct for each forward range with the gear select lever in Drive, using the scan tool to command all forward ranges. Refer to Transmission Fluid Pressure Switch Logic .
- If any parameter value is not correct for a given gear range
  Refer to Circuit/System Testing below.
- If the parameter values are correct for all gear ranges
After performing the above steps, verify that the DTC does not reset by operating the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions you observe from the Freeze Frame/Failure Records data. If the vehicle passes the Circuit/System Verification procedure, then STOP. Do not perform the Circuit/System Testing or Component Testing as this may result in an unnecessary part replacement. Refer to Testing for Intermittent Conditions and Poor Connections .