Canada - Engine Controls - MIL ON/DTC P0128 Set

GROUP
ENGINE ELECTRICAL

NO.
02-36-011

DATE
JUNE 28/02

MODEL
2002 ACCENT 1.6L

SUBJECT

2002 ACCENT 1.6L ECM REPROGRAMMING
INSTRUCTIONS FOR P0128 (THERMOSTAT)

Some 2002 MY Accents with the 1.6L engine may have the "Check Engine" light illuminate and the diagnostic trouble code P0128 (thermostat stuck open) stored in the ECM. This code can be incorrectly set if the driving conditions are as follows:

^ Ambient air temperature is about 10-21°C (50-70°F)

^ Engine is cold

^ Vehicle is driven at low speeds

^ A/C is on

^ Blower speed is set at 3 or 4

If the code is incorrectly set, perform the ECM software reprogramming procedure using the Hi-Scan Pro as outlined in this TSB.

The vehicles affected are all 2002 1.6L Accents produced before February 2, 2002.





ECM SPECIFICATION TABLE:

CAUTIONS BEFORE REPROGRAMMING:

1. Conduct reprogramming with the ignition key in the ON position.
2. Assure that the vehicle and the Hi-Scan Pro are securely connected during the entire reprogramming session.

WARNING: If reprogramming is interrupted, the manual update procedure must be followed as outlined in this TSB.

3. Do not start the engine during reprogramming.
4. Do not turn the ignition key off during reprogramming.
5. When the reprogramming is completed turn the ignition key off for 20 seconds before starting the engine.

REPROGRAMMING PROCEDURE:

AUTOMATIC UPDATE PROCEDURE:





1. Attach the Data Link Connector (DLC) cable to the Hi-Scan Pro and tighten securely.

2. Remove the current system software card from the Hi-Scan Pro and insert the 16 MB (yellow) reprogramming software card into the Hi-Scan Pro top slot.





3. Plug the other end of the DLC cable into the 16-pin Data Link Connector located left of the steering wheel under the instrument panel.

4. Turn the ignition to the ON position.

5. Turn the Hi-Scan Pro ON and press ENTER.





6. Select option "19. LC 02MY 1.6D THERMOSTAT ERROR(P0128)" and press ENTER.





7. Select option "01. LC 1.6 DOHC 02MY ECM[AUTO MODE]" and press ENTER.





8. Enter "1229" as the password and press ENTER.








9. The Hi-Scan Pro will establish communication check the ECM ID and reprogram the ECM automatically.

NOTE:

^ The Hi-Scan Pro detects the current ECM ID (affected) and assigns the new ID (target) and displays them for less than 1 second. Use these IDs to verify that the correct ECM software is being downloaded. Refer to the "ECM SPECIFICATION TABLE" of this TSB.

^ If the Hi-Scan Pro does not download the program, use the manual update procedure in the following section.

WARNING:
Do not interrupt the reprogramming at any time. The ECM will be rendered inoperative if the program does not download properly.





10. When the COMPLETED message is displayed turn the Hi-Scan Pro OFF and the process is complete.

11. Turn the ignition to the OFF position for 20 seconds and then start the engine to check for proper operation.

MANUAL UPDATE PROCEDURE:

NOTE:
In the event menu option "01. LC 1.6 DOHC 02MY ECM[AUTO MODE]" fails to download the new ECM program, option "02. LC 1.6 DOHC 02MY ECM[ERROR MODE]" must be used.

1. Turn the ignition to the ON position.

2. Turn the Hi-Scan Pro ON and press ENTER.





3. Select option "19. LC 02MY 1.6D THERMOSTAT ERROR(P0128)" and press ENTER.





4. Select option "02. LC 1.6 DOHC 02MY ECM[ERROR MODE]" and press ENTER.





5. Select "01. LC 1.6 DOHC 02MY ECM: 39110-26711" and press ENTER.





6. Enter "6711" as the password for the manual update mode and press ENTER.





7. Wait until the reprogramming is completed. The Hi-Scan Pro will reprogram the ECM.

NOTE:

^ Once the password is entered and accepted, the rest of the procedure is exactly the same as the automatic update procedure.

^ Check the new ECM ID displayed on the Hi-Scan Pro screen to verify that the correct ECM software has been installed. Refer to the "ECM SPECIFICATIONS TABLE" of this TSB.





8. When the COMPLETED message is displayed, turn the Hi-Scan Pro OFF and the process is complete.

9. Turn the ignition to the OFF position for 20 seconds and then start the engine to check for proper operation.

EXPLANATION OF ERROR MESSAGES:

1. "INVALID PASSWORD": Please re-enter the exact password.

2. "REPROGRAMMING ERROR PLEASE WAIT FOR RETRY": An error occurred during reprogramming. Hi-Scan Pro will automatically retry the reprogramming.

3. "ALREADY REPROGRAMMED" or "INCORRECT TARGET ID": The reprogramming has already been done on this vehicle or the ECM is not the correct type for this reprogramming procedure.

4. "REPROGRAM ERROR PLEASE CHECK THE SYSTEM": In this case you must reprogram manually by following the manual update procedure of this TSB.





WARRANTY INFORMATION: