Road Testing Vehicle

Road Testing Vehicle

Note:
^ Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws.

Note:
^ Transmission with identification tag IL5P-DA or IL5P-EA only, will have adaptive shift strategy.

Note:
^ When the battery has been disconnected, or a new battery installed, certain transmission operating parameters may be lost. The powertrain control module (PCM) must relearn these parameters. During this learning process you may experience slightly firm shifts, delayed, or early shifts. This operation is considered normal and will not affect the function of the transmission. Normal operation will return once these parameters are stored by the PCM.

The Shift Point Road Test and Torque Converter Clutch Operation Test provide diagnostic information on transmission shift controls and torque converter operation.

Shift Point Road Test
This test verifies that the shift control system is operating properly.
1. Bring engine and transmission up to normal operating temperature.
2. Operate vehicle with transmission selector in D range.
3. Apply minimum throttle and observe speeds at which upshift occurs and torque converter engages. See the following Shift Speeds chart.
4. Stop the vehicle. Press transmission control switch and overdrive off switch (O/D OFF) to activate D range. Repeat Step 3. Transmission will make all upshifts except 4-5 and torque converter clutch apply should occur above 46 km/h (28 mph).
5. Press accelerator pedal to floor, wide open throttle (WOT). Transmission should shift from third to second, or third to first, depending on vehicle speed, and torque converter clutch should release.
6. With vehicle speed above 48 km/h (30 mph), move the selector lever from D range to 1 range (LOW) and release accelerator pedal. Transmission should immediately downshift to third gear. When vehicle speed drops below 32 km/h (20 mph), transmission should downshift into first gear.
7. If transmission fails to upshift/downshift or torque converter clutch does not apply/release, see SYMPTOM TROUBLESHOOTING CHART - AUTOMATIC TRANSMISSION. Symptom Troubleshooting Chart - Automatic Transmission

Shift Speeds

Shift Speeds:

Note:
^ Shift speed ranges are approximate for all applications.