Hyundai Venue (QX): Automatic Transaxle Control System / Repair procedures

Adjustment
TCM Learning
1.
Overview and purpose of learning
1)
The purpose is to ensure the initial operation safety by correcting the oil pressure differences between transmissions.
2)
For relearning of TCM, process relearning by deleting existing contents using diagnostic tool when there is shift shock at gears 1-2-3-4-5-6-7-8.
2.
In the following case, TCM learning is required.
1)
Automatic transaxle assembly replacement
2)
TCM replacement
3)
TCM upgrade
3.
TCM learning procedure
1)
Condition : ATF temperature 35 - 95°C (95 - 203°F)
2)
Stop learning
- Repeat the shift pattern shown below five times or more with the brake stepped on.

Hyundai Venue. Repair procedures

3)
Driving relearn
- Maintain the throttle open to a constant level with the gear in D position and increment from 1st to 5th gear within 1500 ~ 2500 RPM of engine and decelerate slowly.
With (ON, throttle opening: 0%), decrement from 8th to 1st gear.
- Upshift throttle opening : 15 - 35% (a proper value for making upshift within 1500 - 2500RPM of engine)

Hyundai Venue. Repair procedures

    Description • Automatic transaxle system relies on various measurement data to determine the current control status and extrapolate the necessary compensation values.

    Description • Monitors the vehicle's operating conditions to determine the optimal gear setting. • Performs a gear change if the current gear setting differs from the identified optimal gear setting.

    Other information:

    Hyundai Venue (QX) (2020-2026) Service Manual: General safety information and caution

    Instructions (R-134a) When Handling Refrigerant 1. R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite. When handling the refrigerant, be sure to wear gloves.

    Hyundai Venue (QX) (2020-2026) Service Manual: Refrigerant Line. Repair procedures

    Replacement 1. If the compressor is marginally operable, run the engine at idle speed, and let the air conditioning work for a few minutes, then shut the engine off. 2. Disconnect the negative (-) battery terminal.

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