Technical Service Bulletins

KIA ECM upgrade with TPS replacement

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KIA ECM upgrade with TPS replacement

Some Kia Sedona vehicles that were produced prior to 4-1-2009 (as well as Sorento, Amanti, Optima and Rondo) may experience a MIL (malfunction Indicator Lamp) illuminated, indicating electronic throttle control-related DTC P2135, P0638, P2A00 or P2A03. Note: throttle body removal is not required to perform TPS replacement.

* DTC P2135 indicates throttle position sensor ½ voltage correlation

* DTC P0638 indicates throttle actuator control range/performance

* DTC P2A00, P2A03 or P2A04 indicates an oxygen sensor related problem (on 2.7L engines)

These vehicles may set P1295 and/or P2106 (these are Forced Limited Power and Power Management DTCs). The main symptom of this condition is that the engine idles at a very low rate.

The ECM update can improve DTC P0116 for vehicles equipped with a block heater, catalyst damage related P0429, P0430 and P0300-306 (due to poor fuel quality), oxygen sensor related DTC on the Rondo equipped with the 2.7L engine.

To correct this condition, the ECM should be reprogrammed using the GDS(Global Diagnostic System) download, and the TPS must be replaced.

A fully charged battery is necessary before an ECM upgrade can take place. DO NOT connect a battery charger to the vehicle during an ECM upgrade. Also, make sure that the blower motor is off during the upgrade. All ECM upgrades must be performed with the ignition key in the ON position. Be careful not to disconnect any cables connected to the vehicle or GDS during the upgrade. DO NOT start the engine during the upgrade, and do not turn the ignition key off or interrupt the power supply during the upgrade. When the ECM upgrade is completed, turn the ignition key OFF and wait 20 seconds before starting the engine. Only use the approved ECM upgrade software designated for the correct model, year and engine size. Failure to do so may create other driveability issues.


MODEL -- Optima/Rondo with 2.7L engine/TPS PART NUMBER -- 35107 3E000FFF or 35107 3E100FFF

MODEL -- Sedona, Sorento, Amanti with 3.3L or 3.8L engine/TPS PART NUMBER -- 35107 3C000FFF or 35107 3C100FFF

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