TC3 - Check Continuity of Solenoid and VPWR Harness Circuit

- Key Off.

- Disconnect PCM. Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.

- Install breakout box, leave PCM disconnected.

- Measure resistance between the VPWR pins at the transmission vehicle harness connector and Test Pin 71/97 at the breakout box.

- Measure resistance between the suspect solenoid signal pin at the vehicle harness connector and the same suspect solenoid signal pin at the breakout box.

- Is each resistance less than 5.0 ohms?

YES -- GO to TC4. TC4 - Check Solenoid Circuit For Short

NO -- SERVICE open circuit. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes