Clutch Adaptive Learning at Limit

What it means

P2789 is defined as "Clutch Adaptive Learning at Limit". the engine control module stores it when the monitored condition for this component or system is outside the limits programmed by the manufacturer.

This entry is compiled automatically from the standard definition and typical diagnostic practice for this type of fault. A detailed, reviewed article is in preparation.

Symptoms

• Check engine light on
• Rough or unstable idle
• Hesitation or poor acceleration
• Increased fuel consumption
• Possible limp mode with reduced power

Common causes

1. Clutch Adaptive Learning at Limit worn, contaminated or out of calibration
2. Mechanical problem in the system the sensor measures
3. Air, vacuum or exhaust leak influencing the reading
4. Wrong or low-quality replacement part
5. Wiring resistance causing a small voltage offset

How to diagnose

1. Compare the live Clutch Adaptive Learning at Limit reading with a known-good value or a second sensor at idle and at 2500 rpm
2. Check for air, vacuum or exhaust leaks that could skew the reading
3. Inspect the component for contamination and clean it if the design allows
4. Verify the part number is correct for the engine
5. Replace the Clutch Adaptive Learning at Limit if the reading remains out of specification

Related codes

Nearby codes in this group

• P2788Auto Shift Manual Adaptive Learning at Limit
• P2790Gate Select Direction Circuit
• P2787Clutch Temperature Too High
• P2791Gate Select Direction Circuit Low
• P2786Gear Shift Actuator Temperature Too High
• P2792Gate Select Direction Circuit High
• P2785Clutch Actuator Temperature Too High
• P2793Gear Shift Direction Circuit