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

2: This step inspects the Failure Records for DTC P1814 occurrences.
4: This step replaces the fluid and the filter. If DTC P1814 occurs more than once in the Failure Records, severe TCC damage may have occurred.

DTC P1814 (3.4L)

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 - 3.4L
2	Install a scan tool. Turn ON the ignition with the engine OFF. IMPORTANT: Before clearing the DTCs, use the scan tool in order to record the Failure Records for reference. Using the Clear DTC Information function will erase the stored Failure Records from the PCM. Record the Failure Records. Observe the Failure Counter in the Failure Records. Clear the DTCs. Does DTC P1814 failure counter indicate more than 1?	-	Go to Step 4	Go to Step 3
3	Inspect the transmission fluid level and color. Refer to Transmission Fluid Checking Procedure . Is the inspection complete?	-	Go to Step 5	-
4	Replace the transmission fluid. Did you complete the repair?	-	Go to Step 5	-
5	Perform the following procedure in order to verify the repair: Select DTC. Select Clear DTC Information. Drive the vehicle with the range selector in D4. The TCC slip must be 1,500 RPM or less. The TP angle must be 50% or less. The vehicle speed must be 11 km/h (7 mph) or less. These conditions must exist for at least 5 seconds. Select Specific DTC. Enter DTC P1814. Has the test run and passed?	-	Go to Step 6	Go to Step 2
6	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 - 3.4L	System OK