Service Procedure
Check Air Fuel (A/F) Sensor Adjustment Values1. Connect the CONSULT PC to the vehicle.
2. Turn the ignition ON.
3. Start C-III plus.
4. Wait for the plus VI to be recognized.
^ Serial number will display when the plus VI is recognized.
5. Select Diagnosis (One System).
6. Select ENGINE.
7. Select Data Monitor.
8. Select A/F ADJ-B1 and A/F ADJ-B2.
^ Use arrows to scroll and find the above items.
9. Select Start.
10. Check values for A/F ADJ-B1 and A/F ADJ-B2.
^ Value for each sensor should be between - 0.300 and 0.300.
^ If a sensor (one or both) is out of the above specified range, make a note of it.
^ Sensor(s) that are out of the specified value will be replaced later in this procedure.
DO NOT replace A/F sensors at this time.
If needed, replace A/F sensors after ECM reprogramming.
11. Go to ECM Reprogramming.
ECM Reprogramming
^ Most instructions for reprogramming with CONSULT-III plus (C-III plus) are displayed on the CONSULT PC screen.
Preparation for Reprogramming
1. 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
2. Return to the C-III plus home screen.
3. Confirm the VI is recognized.
^ Serial number will display when the VI is recognized.
4. Select Re/programming, Configuration.
5. Follow the C-III plus on-screen instructions and navigate to the screen shown in Figure 3.
6. When you get to the screen shown in Figure 3, confirm this bulletin applies as follows:
A. Find the ECM Part Number and write it on the repair order.
B. Compare the P/N you wrote down to the numbers in the Current ECM Part Number column in Table A.
^ If there is a match, this campaign applies. Continue with the reprogramming procedure.
^ If there is not a match, reprogramming does not apply or it has already been done. Check Service Comm to confirm campaign eligibility.
7. Follow the on-screen instructions to navigate C-III plus and reprogram the ECM.
8. When the screen in Figure 5 displays, reprogramming is complete.
NOTE:
If the screen in Figure 5 does not display (reprogramming does not complete), refer to ECM Recovery.
9. Disconnect the battery charger from the vehicle.
10. Select Next.
ECM 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 6:
^ Check battery voltage
(12.0-15.5 V)
^ Ignition is ON, engine OFF
^ External Bluetooth(R) devices are OFF
^ All electrical loads are OFF
^ Select retry and follow the on screen instructions
^ "Retry" may not go through on first attempt and can be selected more than once
If reprogramming does not complete and the "X" icon displays as shown in Figure 7:
^ Check battery voltage
(12.0 - 15.5 V)
^ CONSULT A/C adapter is plugged in
^ Ignition is ON, engine OFF
^ Transmission is in Park
^ All C-III plus / VI cables are securely connected
^ All C-III plus updates are installed
^ Select Home, and restart the reprogram procedure from the beginning
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 - 100°C (158 - 212°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 8 will display.
13. Verify the before and after part numbers are different.
14. Print a copy of this screen (Figure 8) and attach it to the repair order for warranty documentation.
15. Select Confirm.
16. Return C-III plus to the home screen.
17. Turn the ignition OFF.
18. Disconnect the plus VI from the vehicle.
19. Go to Air Fuel (A/F) Sensor Replacement.
Air Fuel (A/F) Sensor Replacement
1. If needed, replace A/F Sensor(s).
a. Refer back to your notes from Check Air Fuel (A/F) Sensor Adjustment.
^ If A/F ADJ-B1 value was out of specification, replace Bank 1 A/F (bank 1 toward the rear of the vehicle).
^ If A/F ADJ-B2 value is out of specification, replace Bank 2 A/F sensor (bank 2 is toward the front of the vehicle).
NOTE:
Replace A/F sensor(s) only if value was out of specification.
b. Refer to the Service Manual for A/F Sensor replacement information.