DH11 - Check TP Circuit For Shorts to SIG RTN or PWR GND

- Key Off.

- TP sensor disconnected.

- Breakout box installed.

- PCM disconnected.

- Measure the resistance between Test Pin 89 (TP SIG) and Test Pins 91 (SIG RTN) and 24 or 103 (PWR GND) at the breakout box.

- Is each resistance greater than 10,000 ohms?

YES -- TP SIG open or shorted to SIG RTN (or PWR GND) in the PCM. REPLACE PCM. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes

NO -- SERVICE TP SIG shorted to SIG RTN (or PWR GND) in the harness. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes