Test Description

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

3: Because the TCM supplies the ECM with vehicle speed, the TCM will also have set a DTC.

DTC P0502 (2.2L)

Step	Action	Yes	No
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Install a scan tool. Turn ON the ignition, with the engine OFF. IMPORTANT: Before clearing the DTC, use the scan tool in order to record the ECM Freeze Frame and the TCM Failure Records. Using the Clear Info function erases the Freeze Frame and Failure Records from the ECM and the TCM. Record the Freeze Frame and Failure Records. Did you record Freeze Frame or Failure Records for any of the following communication codes: U0100 or U2104?	Go to DTC U0100-U0299 or DTC U2104	Go to Step 3
3	Did you record Freeze Frame or Failure Records for DTCs P0722 or P0723?	Go to DTC P0722 (2.2L) or DTC P0722 (2.4L Hybrid) or DTC P0723 (2.2L) or DTC P0723 (2.4L Hybrid)	Go to Testing for Intermittent Conditions and Poor Connections