Toyota Corolla (E120): Idle signal circuit

Inspection procedure

Circuit description

Other materials:

On–vehicle inspection
1. Washer motor Operation check pour the water into the washer jar with the washer motor and the pump installed to the washer jar assy.  Connect the battery (+) to terminal 2 of the washer motor and the pump, the battery (–) to terminal 1 of the washer motor and the pump ...

Pre–check
1. Selecting compass display mode  the compass switch allows you to select the display or non–display mode of the compass. 2. Setting zone  deviation between the ”magnetic north” and ”actual north” differs depending on the location. Therefore, adjustment of the ...

System description
The ecm uses signals from the vehicle speed sensor and crankshaft position sensor to detect the actual gear position (1st, 2nd, 3rd or o/d gear). Then the ecm compares the actual gear with the shift schedule in the ecm memory to detect the mechanical trouble of the shift solenoid valves, th ...