A13 - Check PIP Signal

*** THIS ARTICLE REFLECTS CHANGES MADE BY TSB # 945B16, March 1994

- Key Off.

- Breakout box installed, PCM disconnected.

- Reconnect ICM.

- Measure voltage between Test Pin 49 and Test Pin 23 at breakout box.

- Crank engine, record reading.

- Is voltage between 3.0 and 7.0 volts?

YES -- REPLACE PCM. REMOVE breakout box. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes

NO -- REPLACE ICM. REMOVE breakout box. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes