Test Description
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to the step number on the diagnostic table.
- 3: If the scan tool indicates Closed in Step 2, and Open when the TCC brake switch is disconnected, the switch is stuck closed.
DTC P0724 (3.6L)
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 | Did you perform the Diagnostic System Check - Engine Controls? | - | Go to Step 2 | Go to Diagnostic System Check - Engine Controls in Engine Controls - 3.6L |
| 2 |
IMPORTANT:
Before clearing the DTCs, use the scan tool in order to record the Failure Records for reference. Using the Clear Info function will erase the stored Failure Records from the TCM.
|
- | Go to Intermittent Conditions in Engine Controls - 3.6L | Go to Step 3 |
| 3 |
CAUTION:
Refer to SIR Caution
in Cautions and Notices.
|
- | Go to Step 5 | Go to Step 4 |
| 4 | Test the signal circuit of the TCC brake switch for a short to voltage between the TCM and the TCC brake switch. Refer to Testing for a Short to Voltage and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 7 | Go to Step 6 |
| 5 | Replace the TCC brake switch. Refer to Stop Lamp Switch Replacement in Lighting Systems. Did you complete the replacement? |
- | Go to Step 7 | - |
| 6 | Replace the TCM. Refer to Module, Transmission Control - Replace . Did you complete the replacement? |
- | Go to Step 7 | - |
| 7 | Perform the following procedure in order to verify the repair:
Has the test run and passed? |
- | Go to Step 8 | Go to Step 2 |
| 8 | With a scan tool, observe the stored information, capture info and DTC info. Does the scan tool display any DTCs that you have not diagnosed? |
- | Go to Diagnostic Trouble Code (DTC) List in Engine Controls - 3.6L | System OK |