ECU Power Source Circuit
DESCRIPTION
When the ignition switch is turned to ON, voltage from the ECM's MREL terminal
is applied to the EFI MAIN relay. This causes the contacts of the EFI MAIN relay
to close, which supplies power to terminal +B of the TCM.
WIRING DIAGRAM
PR ...
Tachometer Malfunction
DESCRIPTION
In this circuit, the meter CPU receives engine speed signals from the ECM using
the CAN communication system (CAN No. 1 Bus). The meter CPU displays the engine
speed calculated based on the data received from the ECM.
WIRING DIAGRAM
PROCED ...
Torque Converter Clutch Solenoid Performance (Shift Solenoid Valve SL) (P0741)
SYSTEM DESCRIPTION
The TCM uses signals from the throttle position sensor, air-flow meter, turbine
(input) speed sensor, intermediate (counter gear) speed sensor and crankshaft position
sensor to help determine the engagement timing of the lock-up clutch. ...