Engine Controls - DTC P0128/MIL ON: Overview
Group: ENGINE ELECTRICALNumber: 07-36-003-1
Date: NOVEMBER 2007
Model:
2005 ACCENT
Subject:
ECU PROGRAM UPDATE - MIL ILLUMINATION WITH DTC P0128
This bulletin supersedes TSB 07-36-003 to correct sentence # 2 under "GDS INSTALLATION PROCEDURE".
DESCRIPTION:
Symptom/Condition:
^ Some 2005 ACCENT (LC) 1.6L vehicles may exhibit a MIL illumination with the DTC P0128 stored in the ECU memory, even though there are no faults in the thermostat.
- P0128: Engine coolant thermostat open stuck
NOTE:
There are no performance issues associated with this condition.
Countermeasure:
^ To correct above symptom, the ECU program should be updated using the GDS.
APPLICABLE VEHICLES:
^ Model: 2005 model year ACCENT (LC) vehicles with 1.6L DOHC engine
ROM ID INFORMATION TABLE
CAUTIONS DURING REPROGRAMMING:
1. Make sure the battery has reasonable charge. If the vehicle has been in storage for days run the engine at idle for at least 15 minutes to assure an adequate battery charge state for reliable reprogramming results.
2. Perform reprogramming with the ignition key in the ON position.
3. Turn off all lights (do not leave headlight switch in auto modes.) and all accessories (including heater/air conditioner/blower, radio, heated seats, rear defroster, etc.) to make certain the battery will not be discharged during reprogramming.
4. Be careful not to disconnect any cables connected to the vehicle, the GDS or the Hi-Scan Pro during reprogramming.
5. Do not start the engine during reprogramming.
6. Do not turn the ignition switch OFF during reprogramming.
WARRANTY INFORMATION