Conditions for Clearing the MIL/DTC

WARNING: This page is about a different car, the 2005 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.

The ECM turns OFF the MIL after the third consecutive drive trip in which the TCM does not send a MIL illumination request.
A scan tool can clear the MIL/DTC.
The TCM clears the DTC from TCM history if the vehicle completes 40 warm-up cycles without an emission related diagnostic fault occurring.
The TCM cancels the default actions when the ignition is OFF long enough in order to power down the TCM.

DTC P1834

Step	Action	Value(s)	Yes	No
1	Did you perform the Diagnostic System Check - Vehicle?	-	Go to Step 2	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
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. Using the Clear Info function erases stored DTCs in both the ECM and TCM. Record the DTC Freeze Frame and Failure Records. Clear the DTC. Turn OFF the ignition for at least 30 seconds. Turn ON the ignition, with the engine OFF. Did DTC P1834 reset?	-	Go to Step 3	Go to Intermittent Conditions in Engine Controls - 3.6L or Intermittent Conditions in Engine Controls - 4.6L
3	Turn OFF the ignition. Disconnect the TCM. Turn ON the ignition with the engine OFF. Measure the voltage at the solenoid supply voltage circuit of the TCM harness connector. Refer to Automatic Transmission Related Connector End Views (5L40-E) or Automatic Transmission Related Connector End Views (5L50-E) and Circuit Testing in Wiring Systems. Is the voltage greater than the specified value?	6.4 volts	Go to Step 4	Go to Step 5
4	Repair the short to voltage on the solenoid supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Is the action complete?	-	Go to Step 6	-
5	Replace the TCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the action complete?	-	Go to Step 6	-
6	Perform the following procedure in order to verify the repair: Select DTC. Select Clear Info. Turn ON the ignition, with the engine OFF. Select Specific DTC. Enter DTC P1834. Has the test run and passed?	-	Go to Step 7	Go to Step 2
7	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 - Vehicle in Vehicle DTC Information	System OK