P2770

DTC P2770

DTC Descriptor
This diagnostic procedure supports the following DTC:

DTC P2770 Torque Converter Clutch (TCC) Electrical (Open or Short to Power)

Conditions for Setting the DTC
^ No emergency mode.
^ TCM detects that the ON signal (12V) of the lockup solenoid monitor, when the lockup driver outputs the OFF signal (0V) for 0.5 of a second continuously.
^ Detection continuously occurs 1 time or more.

Action Taken When the DTC Sets
^ The TCM will request the illumination of malfunction indicator lamp (MIL) and store the DTC when the TCM detects a failure on two consecutive ignition cycles.
^ TCM outputs no lockup signal.
^ First gear fixed under 10 km/h (6 mph).

Conditions for Clearing the DTC
^ The TCM turns OFF the MIL when no further failures are detected on the next 3 consecutive ignition cycles.
^ The scan tool can clear the DTC from the TCM history.
^ The TCM clears the DTC from the TCM history memory after 40 consecutive ignition cycles without fault.
^ The TCM detects the OFF signal of the lockup solenoid monitor, when lockup solenoid driver outputs the OFF signal for 1000 milliseconds.

Cause of Failure
^ The wiring harness or the connector between the lockup solenoid and the TCM
^ Lockup Solenoid
^ The TCM

Step 1 - Step 9:

Step 10 - Step 12: