P2770

DTC P2770: TCC (Lock-Up) Circuit High





Wiring Diagram

DTC Detecting Condition and Trouble Area

DTC Detecting Condition
Voltage at terminal "C51-1-8" of PCM is high while TCC solenoid OFF is commanded.

Trouble Area
^ TCC (lock-up) solenoid valve
^ TCC (lock-up) solenoid valve circuit
^ PCM

DTC Confirmation Procedure

WARNING:
^ When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
^ Road test should be carried out with 2 persons, a driver and a tester, on a level road.

1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTC, pending DTC and freeze frame data in PCM memory by using scan tool.
3) Start engine, warm it up to normal operating temperature and shift transfer lever to "2H" or "4H" range.
4) Shift selector lever in D range and keep it there for 10 seconds.
5) Increase vehicle speed to about 80 km/h (50 mph) in 4th gear and in "D" range.
6) Keep driving at above speed for 20 seconds.
7) Release accelerator pedal, decrease vehicle speed and stop vehicle.
8) Check pending DTC and DTC by using scan tool.





DTC Troubleshooting