W/Harness Inspection

P0750 Shift Control Solenoid Valve \'A\' (Low&Reverse Brake Solenoid)

Inspection/Repair - W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?






Power Circuit Inspection

1. Connect "A/T SOLENOID VALVE" connector and install device for measuring wave form.
2. Turn on the Engine and Drive in normal condition.
3. Measure wave form between "ON/OFF (SCSV-A) SOLENOID VALVE" terminal of the sensor harness connector and chassis ground.









Wave form of ON/OFF SOLENOID




4. Is measured normally operating wave form?






Signal Circuit Inspection

1. Check Signal Circuit Open Inspection
(1) Ignition "OFF".
(2) Disconnect "A/T SOLENOID VALVE" connector and "PCM/TCM" connector.
(3) Measure resistance between "ON/OFF (SCSV-A) SOLENOID VALVE" terminal of the ATM SOLENOID VALVE harness connector and "ON/OFF (SCSV-A) SOLENOID VALVE" terminal of the PCM/TCM harness connector.

Specification :Approx. 0 Ohms








(4) Is resistance within specifications?





2. Check Signal Circuit Short Inspection
(1) Ignition "OFF".
(2) Disconnect "A/T SOLENOID VALVE" connector and "PCM/TCM" connector.
(3) Measure resistance between "ON/OFF SOLENOID V/V" terminal of the ATM SOLENOID VALVE harness and chassis ground.

Specification :Infinite








(4) Is resistance within specifications?