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SUBJECT:
HVAC CONTROL UNIT LOGIC IMPROVEMENT
This bulletin provides information related to HVAC controller software upgrade for 2014MY Sorento vehicles, produced from January 24, 2013 to September 22, 2013, equipped with Auto (FATC) or Manual HVAC controls. The concern relates to the possibility of diminished A/C performance in high humidity climates, where slight icing may occur on the evaporator core and restrict airflow through the dashboard vents. To correct this condition, upgrade the HVAC controller logic using the procedure outlined in this TSB. For confirmation that the latest reflash has been done to a vehicle you are working on, verify ROM ID using the tables in this TSB.
ECU Upgrade Procedure:
To correct this condition, the PCM should be reprogrammed using the GDS download as described in this bulletin.
| UPGRADE EVENT NAME |
|---|
| 221.XM HEATER CONTROL UPGRADE FOR EVA ICING(MTC) |
| 222.XM HEATER CONTROL UPGRADE FOR EVA ICING(FATC) |
*NOTICE
- A fully charged battery is necessary before ECU upgrade can take place. It is recommended that the Midtronics GR8-1299 system be used in ECU mode during charging. DO NOT connect any other battery charger to the vehicle 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 ‘OFF’ and wait 20 seconds before starting the engine.
- ONLY use approved ECU upgrade software designated for the correct model, year.
CAUTION
Before attempting an ECU upgrade on any Kia
model, make sure to first determine whether the particular model is equipped with an immobilizer security system.
Failure to follow proper procedures may cause the ECU to become inoperative after the upgrade and any claims associated with this repair may be subject to chargeback.
ROM ID INFORMATION TABLES :
Upgrade event #221 & 222
| MODEL | A/C Unit P/N | ROM ID | FIGURE | |
|---|---|---|---|---|
| PREVIOUS | NEW | |||
| XM | 97250-1U255
97250-1U265 | 0500 | 0600 | Manual Control
 |
| 97250-1U355
97250-1U365 97250-1U455 97250-1U465 | 05 | 06 | FATC-Audio
 | |
| 97250-1U555
97250-1U565 97250-1U575 97250-1U585 | 05 | 06 | FATC-AVN
 | |
To verify the vehicle is affected, be sure to check the Calibration Identification of the vehicle’s ECU ROM ID and reference the Information Table as necessary.
Upgrade event #221 Sorento (XM )
| MY | MENU | PASSWORD |
|---|---|---|
| XM14MY | XMA FL MTC : 97250-1U255/65 | 1265 |
Upgrade event #22 2 Sorento (XM)
| MY | MENU | PASSWORD |
|---|---|---|
| XM14MY | XMA FL FATC AUDIO : 97250-1U355/365/455/465 | 1465 |
| XM14MY | XMA FL FATC AVN : 97250-1U555/565/575/585 | 1585 |
AFFECTED VEHICLE PRODUCTION RANGE:
| Model | Production Date Range |
|---|---|
| Sorento (XM) | From January 24, 2013 to September 22, 2013 |
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What is J2534?
A single set of programming hardware consists of personal computer(PC), standard interface to a device driver and an interface hardware that connects between PC and a programmable ECU of vehicle.
The main purpose of this regulation is to program ECUs for all vehicles using a single set in the field.”
| Device | Manufacturers | API | DLL | Firmware |
|---|---|---|---|---|
| CarDAQ Plus | Drew Technologies Inc. | 4.04 | 1.9.28 | 1.9.28 |
| ES6510 | Vetronix Corporation | 4.04 | 12.00 | 12.00 |
| Sun PassThru Pro | Snap-on Diagnostics | 4.04 | 02.07u | 02.07u |
| PassThru+ XS | I+ME Actia GmbH | 4.04 | 02.07u | 02.07u |
| OTTOTEST-VCI | OTTO | 4.04 | 1.04 | 1.34 |
| iFlash | Blue Streak | 4.04 | 1.04 | 1.34 |
| PASS THRU PRO II | Snap-on Diagnostics | 4.04 | 1.9.24 | 1.9.24 |
| AEZ Flasher | AE Tools | 4.04 | 1.9.28 | 1.9.28 |
| VSI-2534 | Dearborn Tech | 4.04 | 2.05.26 | 2.05.26 |
| Flasher Pro | Bosch | 4.04 | 1.9.28 | 1.9.28 |
| Flash2 | Cardone | 4.04 | 2.06.28.2 | 2.06.28.2 |
| PX3 | Dearborn Tech | 4.04 | 1.00.09 | 1.00.09 |
CARDAQ-M  | Drew Technologies Inc. | 4.04 | 1.0.106 | 1.0.106 |
| Universal Reprogrammer II | EASE Diagnostics | 4.04 | 1.9.28 | 1.9.28 |
| G-Scan2 | GIT | 4.04 | 3.1 | 9.03 |
* API, DLL and Firmware version may be controlled by the device manufacturer. Contact the manufacturer if you are unable to find the version listed above All devices were tested/verified on all Kia engine management systems.
