Forte L4-2.0L (2010)
PROM - Programmable Read Only Memory: Customer Interest
Engine Controls - Rough Idle/MIL ON/DTC P0304 Set
GROUP ENGINE
NUMBER 065
MODEL 2010 FORTE/KOUP WITH 2.0L ENGINE
SUBJECT:
PCM UPGRADE FOR P0304 DUE TO VCM MOTOR VARIATION LOGIC IMPROVEMENT
This bulletin provides the procedure to upgrade the Powertrain Control Module (PCM) of some 2010 Model Year Forte (TD) Sedan and Koup with 2.0L
engines. This reflash has enhanced VCM logic to improve a rough idle condition at start-up or a MIL ON and stored DTC P0304 set at start-up. For
confirmation that the latest reflash has been performed to a vehicle you are working on, verify ROM ID using the tables in this TSB.
To correct this condition, the ECM should be reprogrammed using the GDS download as described in this bulletin.
NOTICE
^ A fully charged battery is necessary before ECU upgrade can take place. DO NOT connect a battery charger to the vehicle during ECU upgrade. Make
sure the blower motor is "OFF" during ECU upgrade.
^ All ECU upgrades must be done with the ignition key in the "ON" position.
^ Be careful not to disconnect any cables connected to the vehicle or GDS during the ECU upgrade procedure.
^ DO NOT start the engine during ECU upgrade.
^ DO NOT turn the ignition key "OFF" or interrupt the power supply during ECU upgrade.
^ When the ECU upgrade is completed, turn the ignition key "OFF" and wait 20 seconds before starting the engine.
^ ONLY use approved ECU upgrade software designated for the correct model, year and engine size. Failure to do so may create other driveability
issues due to the use of the incorrect ECM/PCM calibration.
