P2785 – Clutch Actuator Temperature Too High

P2785 Possible Causes

  • Worn clutches
  • Faulty clutch actuator temperature sensor
  • Clutch actuator temperature sensor harness is open or shorted
  • Poor electrical connection in the clutch actuator temperature sensor circuit

How to Fix Code P2785

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2785 Meaning

The Transmission Control Module (TCM) monitors the clutch actuator temperature. The TCM sets the OBDII code when the clutch actuator temperature is outside factory specifications.

P2786 – Shift Actuator Temperature Too High

P2786 Possible Causes

  • Faulty gear shift actuator temperature sensor
  • Gear shift actuator temperature sensor wiring harness open or shorted
  • Poor electrical connection in gear shift actuator temperature sensor circuit

How to Fix Code P2786

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light on (or service engine soon warning light)

P2786 Meaning

The Transmission Control Module (TCM) monitors the gear shift actuator temperature. The TCM sets the OBDII code when the gear shift actuator temperature is outside factory specifications.

P2787 – Clutch Temperature Too High

P2787 Possible Causes

  • Faulty clutch temperature sensor
  • Clutch temperature sensor harness is open or shorted
  • Poor electrical connection in the clutch temperature sensor circuit

How to Fix Code P2787

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2787 Meaning

The Transmission Control Module (TCM) monitors clutch temperature. The TCM sets the OBDII code when the clutch temperature is outside factory specifications.

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P2788 – Manual adaptive learning with automatic boundary change

P2788 Possible Causes

  • Low transmission fluid
  • Internal mechanical transmission failure
  • Faulty transmission control module (TCM)

How to Fix Code P2788

Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P2788 Meaning

The transmission control module (TCM) monitors the adaptive learning of the automatic shift manual. The TCM sets the OBDII code when it detects an abnormality in the automatic shift manual adaptive learning system.

P2789 – Adaptive Clutch ‘A’ Learning at the Limit

P2789 Possible Causes

  • Low transmission fluid
  • Internal mechanical transmission failure
  • Faulty transmission control module (TCM)

How to Fix Code P2789

Check the “possible causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light on (or service engine soon warning light)

P2789 Meaning

The transmission control module (TCM) monitors the adaptive learning of clutch “A”. The TCM sets the OBDII code when it detects an abnormality in the adaptive learning system of clutch “A”.

P278A – Kick Switch Circuit

P278A Possible Causes

  • Faulty kickdown switch
  • Kickdown switch harness is open or shorted
  • Poor electrical connection in the kickdown switch circuit

How to Fix Code P278A

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check Engine Light illuminated (or Service Engine Soon warning light)

P278A Meaning

The Transmission Control Module (TCM) monitors the kickdown switch circuit signal. The TCM sets the OBDII code when the kickdown switch circuit signal is outside factory specifications.

P278B – Kick Switch Circuit Range / Performance

P278B Possible Causes

  • Faulty kick switch
  • Kick switch harness is open or shorted
  • Poor electrical connection in the kick switch circuit

How to Fix Code P278B

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Engine light on (or service engine soon warning light)

P278B Meaning

The Transmission Control Module (TCM) monitors the kick switch circuit signal. The TCM sets the OBDII code when the kick switch circuit signal is outside factory specifications.

P278C – Low Kick Switch Circuit

P278C Possible Causes

  • Faulty kickdown switch
  • Kickdown switch harness is open or shorted
  • Poor electrical connection in the kickdown switch circuit

How to Fix Code P278C

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Engine light on (or service engine soon warning light)

P278C Meaning

The Transmission Control Module (TCM) monitors the kickdown switch circuit signal. The TCM sets the OBDII code when the kickdown switch circuit signal is outside factory specifications.

P278D – High Kick Switch Circuit

P278D Possible Causes

  • Faulty kickdown switch
  • Kickdown switch harness is open or shorted
  • Poor electrical connection in the kickdown switch circuit

How to Fix Code P278D

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Engine light on (or service engine soon warning light)

P278D Meaning

The Transmission Control Module (TCM) monitors the kickdown switch circuit signal. The TCM sets the OBDII code when the kickdown switch circuit signal is outside factory specifications.