Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Electronic controlled automatic transaxle / Shift solenoid ”a” performance (shift solenoid valve s1)

Toyota Corolla (E120): Shift solenoid ”a” performance (shift solenoid valve s1)

Dtc p0751 shift solenoid ”a” performance (shift solenoid valve s1)

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, the valve body or automatic transaxle (clutch, brake or gear etc.).

Monitor description

Monitor description

The ecm commands gear shifts by turning the shift solenoid valves ”on/off”. According to the input shaft revolution, intermediate (counter) shaft revolution and output shaft revolution, the ecm detects the actual gear position (1st, 2nd, 3rd or o/d gear position). When the gear position commanded by the ecm and the actual gear position are not same, the ecm illuminates the mil.

Monitor strategy

Typical enabling conditions

Typical enabling conditions

Typical malfunction thresholds

Typical malfunction thresholds

Inspection procedure

    Share this page:

    Other materials:

    Using the steering wheel switches
    The steering wheel switches can be used to operate a connected cellular phone or portable digital audio player (portable player). Operating a Bluetooth® phone using the steering wheel switches 1 Volume The voice guidance volume cannot be adjusted using these buttons. 2 Off-hook switch Turns ...

    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 ...

    Operating the touch screen
    By touching the screen with your finger, you can control the multimedia system, etc. ■ Drag* Touch the screen with your finger, and move the screen to the desired position. ● Scrolling the lists ● Using scroll bar in lists ■ Flick* Touch the screen with your finger an ...