Conditions for Clearing the DTC/DIC

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

The TCM clears the DIC when the condition no longer exists.
A scan tool can clear the DTC.
The TCM clears the DTC from TCM history if the vehicle completes 40 warm-up cycles without a non emission related diagnostic fault occurring.
The TCM cancels the DTC default actions when the ignition is OFF long enough in order to power down the TCM.

DTC P1831

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	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 and the TCM Failure Records. Using the Clear Info function erases the Failure Records from the ECM and 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. Start the engine. Did DTC P1831 reset?	-	Go to Step 3	Go to Intermittent Conditions in Engine Controls - 2.6L and 3.2L or Intermittent Conditions in Engine Controls - 3.6L (LY7)
3	Turn OFF the ignition. Disconnect the AT inline 20-way connector. Turn ON the ignition with the engine OFF. Clear the DTC. Turn OFF the ignition for at least 30 seconds. Start the engine. Additional DTCs may set. Did DTC P1831 reset?	-	Go to Step 4	Go to Step 5
4	Disconnect the TCM. Test the HSD1 circuit between the AT inline 20-way connector and the TCM for a short to ground. Refer to Testing for Short to Ground in Wiring Systems. Did you find a condition?	-	Go to Step 8	Go to Step 7
5	Test the HSD1 circuit between the AT inline 20-way connector and the pressure control solenoid for a short to ground. Refer to Testing for Short to Ground in Wiring Systems. Did you find a condition?	-	Go to Step 9	Go to Step 6
6	Replace the shorted pressure control solenoid. Refer to Pressure Control Solenoid (PCS) Replacement . Is the action complete?	-	Go to Step 10	-
7	Replace the TCM. Refer to Transmission Control Module (TCM) Replacement . Is the action complete?	-	Go to Step 10	-
8	Repair the short to ground on the HSD1 circuit. Refer to Wiring Repairs in Wiring Systems. Is the action complete?	-	Go to Step 10	-
9	Replace the internal transmission electrical harness. Refer to Transmission Internal Electrical Harness Replacement . Is the action complete?	-	Go to Step 10	-
10	Perform the following procedure in order to verify the repair: Select DTC. Select Clear Info. Start the engine. Select Specific DTC. Enter DTC P1831. Has the test run and passed?	-	Go to Step 11	Go to Step 2
11	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