DTC P2769: Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL); DTC P2770: Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL): Procedure

WARNING: This page is about a different car, the 2010 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL)

Remove the TCM from the transaxle.

Fig 1: Inspecting Transmission Wire (Shift Solenoid Valve SL)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance of the transmission wire.

Standard resistance

Tester Connection	Condition	Specified Condition
6 (SL) - Body ground	20°C (68°F)	11 to 15 Ω

OK → REPLACE TCM

NG: Go to next step

INSPECT SHIFT SOLENOID VALVE SL (RESISTANCE)
1. Remove the shift solenoid valve SL.
  
  Fig 2: Checking Shift Solenoid Valve SL (Resistance)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance between the solenoid valve terminal and solenoid valve body.
  Standard resistance
  
  11 to 15 Ω at 20°C (68°F)
NG → REPLACE SHIFT SOLENOID VALVE SL

OK → REPLACE TRANSMISSION WIRE