Service Procedure
^ This procedure will require reprogramming of the ECM and TCM; which means most steps in this procedure will need to be done twice.^ Most instructions for reprogramming with CONSULT-III plus (C-III plus) are displayed on the CONSULT PC screen.
^ If you are not familiar with the reprogramming procedure, refer to "CONSULT- III plus (C-III plus) Reprogramming" general procedure.
Preparation for Reprogramming
^ Take the vehicle for a 10 minute drive in order to meet the following Idle Air Volume Learn (IAVL) conditions:
> Engine coolant temperature: 70-100°C (158-212°F)
> Battery voltage: More than 12.9V (At idle)
> Transmission: Warmed up
NOTE:
^ After ECM reprogramming is complete, you will be required to perform Throttle Valve Closed Position, Idle Air Volume Learn (IAVL), and Accelerator Closed Position.
^ The above conditions are required for the IAVL to complete.
CAUTION
1. Connect the CONSULT PC to the vehicle to begin the reprogramming procedure.
2. Open ASIST on the CONSULT PC and start C-III plus.
3. Wait for the plus VI to be recognized / connected.
^ Serial number will display when the plus VI is recognized / connected.
4. Select Re/programming, Configuration.
5. Follow the C-III plus on-screen instructions and navigate to the screen shown in Figure 2 above.
IMPORTANT:
During the initial "Reprogramming Confirmation" set-up, if you get the screen shown in Figure 1A:
1. Select Delete, then
2. Select Other Operation, then
3. Continue with the reprogramming procedure.
NOTE:
If reprogramming does not complete, this screen can display for reprogramming recovery. Do not select Delete if this screen displays during reprogram recovery.
6. When you get to the screen shown in Figure 2, confirm this bulletin applies as follows:
A. Find the ECM or TCM Part Number and write it on the repair order.
NOTE:
This is the current ECM or TCM Part Number (P/N).
B. Compare the P/Ns you wrote down to the numbers in the Current ECM Part Number column in Table A above, and Current TCM Part Number column in Table B above.
^ If there is a match with one or both ECM and TCM P/Ns, this bulletin applies. Continue with the reprogramming procedure.
^ If there is not a match with both ECM and TCM P/Ns, reprogramming does not apply.
> Both ECM and TCM P/Ns must be checked for a match.
> If there is a match with only one of the two (ECM or TCM), reprogram the one with a matching number.
7. Follow the on-screen instructions to navigate C-III plus and reprogram the ECM or TCM.
NOTE:
^ In some cases, more than one new P/N for reprogramming is available.
> In this case, the screen in Figure 3 displays.
> Select and use the reprogramming option that does not have the message "Caution! Use ONLY with ITBXX-XXX".
^ If you get this screen and it is blank (no reprogramming listed), it means there is no reprogramming available for this vehicle.
8. When the screen in Figure 4 displays, reprogramming is complete.
NOTE:
If the screen in Figure 4 does not display (reprogramming does not complete), refer to the information below.
9. Disconnect the battery charger from the vehicle.
10. Select Next.
NOTE:
^ In the next steps:
1. For ECM reprogramming you will perform Throttle Valve Closed Position, Idle Air Volume Learn, Accelerator Closed Position, and DTC erase.
2. For TCM reprogramming, only DTC erase is needed.
^ These operations are required before C-III plus will provide the final reprogramming confirmation report.
ECM/TCM recovery:
Do not disconnect plus VI or shut down C-III plus if reprogramming does not complete.
If reprogramming does not complete and the "!?" icon displays as shown in Figure 5 and information above.
If reprogramming does not complete and the "X" icon displays as shown in Figure 6 and information above.
11. Follow the on-screen instructions to perform the following:
^ Throttle Valve Closed Position
^ Idle Air Volume Learn (IAVL)
NOTE:
^ Listed below are the conditions required for IAVL to complete.
^ If IAVL does not complete within a few minutes, a condition may be out of range.
> Engine coolant temperature: 70-105°C (158-221°F)
> Battery voltage: More than 12.9V (At idle)
> Selector lever: P or N
> Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
> Steering wheel: Neutral (Straight-ahead position)
> Vehicle speed: Stopped
> Transmission: Warmed up (ATF TEMP SE less than 0.9V)
^ Accelerator Pedal Close Position Learning
^ Erase DTCs
12. When the entire reprogramming process is complete, the screen in Figure 7 will display.
13. Verify the before and after part numbers are different.
14. Print a copy of this screen (Figure 7) and attach it to the repair order for warranty documentation.
15. Select Confirm.
16. Make sure you have performed both ECM and TCM reprogramming.
17. Close C-III plus.
18. Turn the ignition OFF.
19. Disconnect the plus VI from the vehicle.
20. Test drive the vehicle and make sure it operates correctly and the MIL is OFF.
^ If the MIL comes ON, go back to ASIST for further diagnostic information.
^ Diagnosis and repairs beyond ECM or TCM reprogramming are not covered by this bulletin.