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Toyota Corolla Repair Manual: Shift solenoid a performance (shift solenoid valve s1)

Toyota Corolla Repair Manual / Diagnostics / Electronic controlled automatic transaxle / 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

Inspection procedure
1 Inspect shift solenoid valve(sl) Remove the shift solenoid valve sl.  measure the resistance according to the value(s) in the table below. Standard: Connect the positive (+ ...

Inspection procedure
1 Inspect shift solenoid valve(s1) Remove the shift solenoid valve s1. measure the resistance according to the value(s) in the table below. Standard: Connect the positive (+) batt ...

Other materials:

Adjusting the distance
Safety information Warning The system cannot serve as a substitute for the driver's personal judgment. Due to the system limits, braking can be late. There may be a risk of accident or risk of damage to property. Be aware to the traffic situation at all times. Adjust the distance to the traffic and ...

Onvehicle inspection
1. Inspect sliding roof function  check the slide opening operation (manual).  Turn the ignition switch on.  When keeping operating the sliding roof switch to the open side, check that the roof glass will slide and be fully opened.  check the slide closing ...

Registering a new contact to the contact list
New contact data can be registered. Up to 4 numbers per person can be registered. For PBAP compatible Bluetooth phones, this function is available when Automatic Contact/History Transfer is set to off. 1 Select New Contact. 2 Enter the name and select OK. 3 Enter the phone number and s ...

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