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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 28 (Automatic Transmission - 5L40-E (DTC P0115 To P0742)) >> Automatic Transaxle Diagnosis >> DTC P0727 >> Conditions for Clearing the MIL/DTC

Conditions for Clearing the MIL/DTC

WARNING: This page is about a different variant/trim than selected.
DTC P0727

Step Action Value(s) Yes No
1 Did you perform the Diagnostic System Check - Automatic Transmission? - Go to Step 2  Go to Diagnostic System Check - Automatic Transmission
2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. 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.
    • Using the Clear Info function erases stored DTCs in both the ECM and TCM.
  4. Record the DTC Failure Records.
Did you record any ECM Failure Records?
- Go to Diagnostic Trouble Code (DTC) List in Engine Controls - 2.6L and 3.2L or Diagnostic Trouble Code (DTC) List in Engine Controls - 3.6L (LY7) Go to Step 3 
3 Did you record a TCM Failure Record for DTC U0100? - Go to DTC U0100-U0299 Go to Step 4 
4
  1. Clear the DTC.
  2. Turn the ignition OFF for at least 30 seconds.
  3. Start and idle the engine.
  4. Observe the Engine Speed on the scan tool.
Is the Engine Speed within the specified range?
500-1,000 RPM Go to Step 5  Go to Step 6 
5 Road test the vehicle using various engine speeds.
Did DTC P0727 reset?
- Go to Step 7  Go to Intermittent Conditions in Engine Controls - 2.6L and 3.2L or Intermittent Conditions in Engine Controls - 3.6L (LY7)
6
  1. Select Engine Data on the scan tool.
  2. Observe the scan tool Engine Speed parameter.
Is the Engine Speed value within the specified range?
500-1,000 RPM Go to Step 7  Go to Step 8 
7 Did any other DTCs set? - Go to Diagnostic Trouble Code (DTC) List in Engine Controls - 2.6L and 3.2L or Diagnostic Trouble Code (DTC) List in Engine Controls - 3.6L (LY7) Go to Step 8 
8 Replace the TCM. Refer to Transmission Control Module (TCM) Replacement .
Is the action complete?
- Go to Step 9  -
9 Perform the following procedure to verify the repair:
  1. Select DTC on the scan tool.
  2. Select Clear Info.
  3. Turn ON the ignition with the engine OFF.
  4. Operate the engine at varying speeds.
  5. Select Specific DTC.
  6. Enter DTC P0727.

Has the test run and passed?
- Go to Step 10  Go to Step 2 
10 With the 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 - 2.6L and 3.2L or Diagnostic Trouble Code (DTC) List in Engine Controls - 3.6L (LY7) System OK