Customer Satisfaction Notification R01 Reprogram Transmission And Powertrain Control Modules (RC-R01-15)

A. Reprogram the Powertrain and Transmission Control Modules

1. Open the hood. Install a battery charger and verify that the charging rate provides 13.0 to 13.5 volts. Do not allow the charger to time out during the flash process. Set the battery charger timer (if so equipped) to continuous charge.
   NOTE: Use an accurate stand-alone voltmeter. The battery charger volt meter may not be sufficiently accurate. Voltages outside of the specified range will cause an unsuccessful flash. If voltage reading is too high, apply an electrical load to the vehicle by activating the park or headlamps and/or HVAC blower motor to lower the voltage.
2. Connect the wiTECH micro POD to the vehicle data link connector.
3. Place the ignition in the "RUN"  position.
4. Open the wiTECH Diagnostic application.
5. Starting at the "Select Tool" screen, highlight the row/tool for the wiPOD device you are using. Then select "Next"  at bottom right side of the screen.
6. Enter your "User id"  and "Password"  , then select "Finish"  at the bottom of the screen.
7. From the "Vehicle View"  screen, click on the "PCM"  icon.
8. From the "PCM View"  screen, compare the "Current ECU Flash Number"  with the "New Part Number"  listed on the "sort table"  . If the "Current ECU Flash Number"  is the same as the "New Part Number"  continue to Step  13. If the part numbers are not the same, continue to Step 9.
9. With the cursor over the desired flash file, click the green arrow button on the right side of the screen to start the process.
10. From the "ECU Flash"  screen follow the wiTECH screen instructions to complete the reprogramming.
11. Once the flash is complete click the "OK"  button on the "ECU Flash"  screen.
12. From the "PCM View"  screen, compare the "Current ECU Flash Number"  with the "New Part Number"  listed on the "sort table"  . If the "Current ECU Flash Number"  is the same as the "New Part Number" the flash is complete. If the part numbers are not the same, repeat Steps  7 through  11. If the part numbers match, continue with Step 13.
13. Using wiTECH, reprogram the TCM with the latest available software.
    • If both the PCM and TCM were not  reprogrammed and are up to date, the repair is complete. Remove the wiTECH micro POD and return the vehicle to the customer.
    • If the PCM was  reprogrammed and the TCM was up to date  , continue with step  42, Transmission Drive Verification Test  .
    • If the TCM was  reprogrammed and the PCM was up to date  , continue with step 14.
    • If both the TCM and PCM were  reprogrammed, continue with step 14.
14. Select "Misc. Functions"  tab.
15. Highlight "TCM VIN Verification"  and click on the green arrow to start the process.
16. Follow screen prompts to complete VIN verification process.
17. Page back to "Vehicle View" screen.
18. Select "Vehicle Preparations"  tab.
19. Highlight "Proxi Configuration Alignment"  and click on the green arrow to start the process.
20. Follow screen prompts to complete proxi configuration alignment process.
21. Turn the ignition to the "OFF"  position.
22. Unplug the wiTECH micro POD from the vehicle, close the doors and wait two minutes.
23. Connect the wiTECH micro POD to the vehicle.
24. Turn the ignition to the "RUN"  position.
25. Start a wiTECH session.
26. Select the "Vehicle Preparations"  tab.
27. Highlight "Proxi Configuration Alignment"  and click on the green arrow to start the process.
28. Follow the screen prompts to verify  the proxi configuration alignment:
    • If the TCM module is not  aligned, repeat Steps  18 through Step  27.
    • If the TCM module is  aligned, continue with Step 29.
29. Cycle the ignition to the "OFF"  position and wait one minute.
30. Place ignition in the "RUN"  position.
31. Clear all Diagnostic Trouble Codes (DTC's)  .
32. Remove the battery charger from the vehicle.
    • If the vehicle is a 2014 KL, continue with Step 33  .
    • If the vehicle is a 2015 KL or UF, continue with the Quick Learn  and Transmission Drive Verification Test  procedures Steps 34 through 43  .
33. Using wiTECH, navigate to the TCM data and locate the transmission fill and fast fill counters.
    • If all counters have a value greater than zero  , continue with Step 42 Transmission Drive Verification Test  .
    • If all counters have a value equal to zero  , continue with Section B. Transaxle Relearn Procedure and Transmission Drive Verification Test  .
34. Start the engine and monitor the transmission temperature on the Electronic Vehicle Information Center (EVIC).
35. With the vehicle located in a suitable area and emissions being addressed, allow the transmission to warm up to minimum of 60°C (140°F) by performing the following steps:
    1. Apply the service brake.
    2. Shift the transmission from Park to Reverse.
    3. Shift the transmission from Reverse to Drive.
    4. Accelerate the vehicle to minimum of 45 mph to allow the transmission to cycle through each gear.
    5. Continue to drive the vehicle until the transmission temperature reaches 60°C (140°F).
       NOTE: If the vehicle is equipped with the start/stop feature (sales code XBU) it must be disabled prior to performing the quick learn procedure, steps  36 through  40. To disable, press the on/off switch located on the center switch bank near the HVAC controls.
36. Connect the wiTECH diagnostic scan tool to the vehicle.
37. Check for active TCM DTCs (Diagnostic Trouble Codes). Do not perform the Quick Learn procedure if TCM DTCs are present. If DTCs are present, repair the transmission as required then continue with Step 38.
38. Select the TCM module in wiTECH.
39. Select the "Misc Functions" tab.
    NOTE: If the "Quick Learn" option does not appear on wiTECH and both the TCM and PCM were just updated, restart the wiTECH application which should now be populated with the "Quick Learn" option.
40. Select the "Quick Learn"  procedure, and follow the on-screen instructions to reset and learn the clutch adaptive values.
41. Shift the transmission into Park and shut off the engine.
42. Perform a Transmission Drive Verification Test  by performing the following steps.
    1. With the vehicle located in a suitable area and emissions being addressed, start the vehicle and allow the coolant temperature to reach between 35°C and 105°C (95°F and 221°F).
    2. Allow the transmission temperature to reach between 50°C and 115°C (122°F and 239°F).
    3. Ensure the vehicle is below an altitude of 8000 ft. Service Procedure (Continued)
    4. With the vehicle in a suitable area and traveling in a straight line, bring the vehicle to a minimum of 30 mph (5th gear) and perform a 0 throttle coasting deceleration until the transmission downshifts from 5th gear to 4th gear.
    5. Repeat this coasting downshift 10 times.
43. Using the wiTECH check for active DTC's.
    • If U0402 code is present, refer to all current, normal diagnostics published in DealerCONNECT/TechCONNECT regarding the U0402 code and repair as necessary following normal warranty repair guidelines.
    • If U0402 code is not present continue with Step 44.
44. Disconnect the wiTECH and return the vehicle to the customer.

B. Transaxle Relearn Procedure

The following 948TE Clutch Application Chart has been provided for your reference only. This chart will help in identifying what clutches are applied in specific gears. Keep in mind that shift quality is greatly affected by the timing of disengaging one clutch and applying another smoothly. If a clutch remains on too long, then harsh shifts can occur or if the clutch disengages too quickly, then poor shift quality can be observed.

The adaptation memory cells appear on the wiTECH for every clutch except the dog clutches. Each clutch will include:

• Fast Filling Counter = the number of filling time events that has taken place.
• Filling Time = +/- number of ms (milli seconds) from zero (standard set value).
• Filling Counter = the number of filling pressure events that has taken place 21-032-14-2-
• Filling Pressure = +/- mb (millibar)/PSI (Pounds per Square Inch) from zero (standard set value)

If the adaptation memory cell "counter" is zero (0), than the adaptation memory cell has not been updated. It will take a minimum of two counts to improve shift quality and with each subsequent count, shift quality will improve even more.

Continue with "B" and "C" Clutches Adaptation Learn Procedure  .

"B" and "C" Clutches Adaptation Learn Procedure

1. With the wiTECH scan tool, erase DTC's.
2. Setup the scan tool to display the Transmission Oil Temperature, Engine Crankshaft Torque, Turbine (Input) Speed Sensor rpm, and Clutch 'X' - Filling Counter for each clutch.
3. Drive the vehicle until the Transmission Oil Temperature is above 50° C (122° F).
4. Accelerate the vehicle moderately to seventh (7th) gear. It will be necessary to maintain seventh gear during this process by utilizing the Electronic Range Selector (ERS).
5. Drive vehicle at constant vehicle speed between 50 and 60 mph (80 and 96 kph).
6. Maintain seventh gear, steady pedal, and constant speed continuously for approximately 10 minutes while staying within the following conditions:
   • Transmission input Shaft Torque should be between 18 ft. lbs. (24 N.m) and 110 ft. lbs. (150 N.m). It will be monitored on the scan tool as Engine Crankshaft Torque.
   • Transmission input shaft RPM should be between 1100 and 2500 RPM (can be monitored by monitoring Engine RPM using the tachometer on the cluster)
7. Using the wiTECH scan tool, inspect the Clutch "B" and Clutch "C" Filling Counter/Fast Filling Counter status.
8. Continue the drive adaptation procedure until Clutch "B" and Clutch "C" Filling and Fast Filling Counters are at least 2 or greater.
9. Continue with "D" Clutch Adaptation Learn Procedure  .

"D" Clutch Adaptation Learn Procedure

1. With the wiTECH scan tool, erase all DTC's.
2. Setup the scan tool to display the Transmission Oil Temperature, Engine Crankshaft Torque, Turbine (Input) Speed Sensor rpm, and Clutch "D" Filling Counter.
3. Drive the vehicle until the Transmission Oil Temperature is above 50° C (122° F).
4. Accelerate the vehicle moderately to sixth (6th) gear. It will be necessary to maintain sixth gear during this process by utilizing Electronic Range Shifter (ERS).
5. Drive vehicle at constant vehicle speed between 40 and 50 mph (64 and 80 kph).
6. Maintain sixth gear, steady pedal, and constant speed continuously for approximately 10 minutes while staying within the following conditions:
   • Transmission input Shaft Torque should be between 18 ft. lbs. (24 N.m) and 110 ft. lbs. (150 N.m). It will be monitored on the wiTECH scan tool as Engine Crankshaft Torque.
   • Transmission input shaft RPM should be between 1100 and 2500 RPM (can be monitored by monitoring Engine RPM using the tachometer on the cluster).
7. Using the wiTECH scan tool, inspect the Clutch "D" Filling Counter/Fast Filling Counter status.
8. Continue the drive adaptation procedure until Clutch "D" Filling and Fast Filling Counter is at least 2 or greater.
9. Continue with "E" Clutch Adaptation Learn Procedure  .

"E" Clutch Adaptation Learn Procedure

1. With the wiTECH scan tool, erase DTC's.
2. Drive the vehicle until the Transmission Oil Temperature is above 50° C (122° F).
3. Accelerate the vehicle moderately to third (3rd) gear. It will be necessary to maintain 3rd gear during this process by utilizing Electronic Range Shifter (ERS).
4. Drive vehicle at constant vehicle speed at 15 mph (24 kph).
5. Maintain 3rd gear, steady pedal, and constant vehicle speed continuously for a minimum of 1 minute, making sure engine speed is less than 2,000 rpm while driving 15 mph (24 kph). This will require adjusting the gas pedal position to keep the engine speed below 2,000 rpm.
6. After 1 minute of driving at 15mph, bring vehicle to a stop, then proceed to 15 mph (24 kph) as described above and repeat 5 times.
7. Stop the vehicle and shift to PARK. Using the scan tool, inspect Clutch "E" Filling Counter/Fast Filling Counter status.
8. Continue this procedure until Clutch "E" Filling and Fast Filling Counters are at least 2 or greater.
9. Continue with Transmission Drive Verification Test  .

Transmission Drive Verification Test

1. Perform a Transmission Drive Verification Test by performing the following steps.
   1. With the vehicle located in a suitable area and emissions being addressed, start the vehicle and allow the coolant temperature to reach between 35°C and 105°C (95°F and 221°F).
   2. Allow the transmission temperature to reach between 50°C and 115°C (122°F and 239°F).
   3. Ensure the vehicle is below an altitude of 8000 ft.
   4. With the vehicle in a suitable area and traveling in a straight line, bring the vehicle to a minimum of 30 mph (5th gear) and perform a 0 throttle coasting deceleration until the transmission downshifts from 5th gear to 4th gear.
   5. Repeat this coasting downshift 10 times.
2. Using wiTECH check for active DTC's.
   • If U0402 code is present, refer to all current, normal diagnostics published in DealerCONNECT/TechCONNECT regarding the U0402 code and repair as necessary following normal warranty repair guidelines.
   • If U0402 code is not present continue with Step 3.
3. Disconnect the wiTECH and return the vehicle to the customer.