W/Harness Inspection

Automatic Transaxle
P0841 Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance - Inspection/Repair:_:W/Harness Inspection

Terminal & 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?






Signal Circuit Inspection

1. IG KEY "ON" & Engine "OFF".
2. Disconnect "ATM solenoid valve" connector.
3. Measure voltage between signal of pressure switch and chassis ground.

Specification :Approx. 12V




4. Is the measured voltage within specifications?






Signal short Inspection

1. Ignition off & Engine off.
2. Disconnected "ATM solenod valve connector and PCM/TCM connector.
3. Measure a resistance between signal of pressure switch and chassis ground.

Specification :Infinite




4. Is the measured resistance within specifications?






Circuit Open Inspection

1. Ignition off & Engine off.
2. Disconnected "ATM solenoid valve" connector and PCM/TCM connector.
3. Measure resistance between signal of pressure switch and PCM TCM connector.

Specification :Approx. 0 Ohms




4. Is the measured resistance within specifications?