P2770 - Torque Converter Clutch Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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P2770 Possible Causes

  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty torque converter clutch solenoid valve
  • Torque converter clutch solenoid valve harness is open or shorted
  • Torque converter clutch solenoid valve circuit poor electrical connection

First diagnose P2770 code

    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 terminals.

Cost of diagnosing the P2770 code

    Labor: 1.0

    The cost of diagnosing the P2770 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

P2770 Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P2770 Description

The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). Lock-up piston operation will then be controlled. When the torque converter clutch solenoid valve is activated, the torque converter lockup clutch will engage creating a 1 to 1 RPM ratio between the transmission input shaft and the rotational speed of the torque converter.

Lock-up operation, however, is prohibited when A/T fluid temperature is too low.

When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.

OBDII Code P2770 - Torque Converter Clutch Circuit High - AutoCodes.com

P2770 More Information

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P2770 Information for specific makes

  • P2770 ACURA Torque Converter Clutch Solenoid Valve Circuit (Open)
  • P2770 DODGE Torque Converter Clutch Circuit High
  • P2770 HONDA Open in Torque Converter Clutch Solenoid Valve Circuit
  • P2770 TOYOTA Torque Converter Clutch Solenoid Circuit High

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