PID Monitor/record on Road Test
Using the diagnostic trouble codes (DTCs) and freeze frame data as a guide, prepare the scan tool to make a recording of the event. Select the transmission parameter identifications (PIDs) that are related to the concern as well as parameter identifications (PIDs) for general automatic transmission operation. Since you may only get one or two chances to duplicate the concern, it is better to have more data on the recording. If possible, set datalogger to automatically start recording when a PID reaches a certain value. For example, you might want the recording to start 6 seconds before a fault PID changes from No Fault to Fault.
The PCM/ TCM may set a DTC after the first occurrence of the fault. Some diagnostic trouble codes (DTCs) may require up to 5 consecutive occurrences before setting. Drive the vehicle in a manner similar to the freeze frame data conditions if possible. If no freeze frame data is available, then perform this road test:
- Drive vehicle normally for 1-3 minutes to warm up the fluid.
- From a stop, accelerate the vehicle to 80 kph (50 mph) with the shifts occurring at approximately 2000 rpm. Stay in 6th gear for 30 seconds or until the TCC applies. Repeat this two times.
- From a stop, accelerate the vehicle to 80 kph (50 mph) with the shifts occurring at approximately 3000 rpm. Stay in 6th gear for 30 seconds or until the TCC applies. Repeat this two times.
After the road test, review the recording and check for newly set diagnostic trouble codes (DTCs). Electrical fault diagnostic trouble codes (DTCs) are diagnosed in pinpoint tests. Hydraulic, mechanical, and performance fault diagnostic trouble codes (DTCs) are diagnosed in component tests. Use the DTC chart for detailed diagnosis: REFER to: Automatic Transmission - 3.0L EcoBoost .
If no diagnostic trouble codes (DTCs) are set, use the data collected, the clutch application chart and the solenoid application chart to determine suspect transmission systems for the concern. Use the component test to diagnose each suspect system.