PRNDL Display Malfunctioning With No Loss Of Serial Data
- Using scan tool, monitor PCM. If GEAR POSITION matches PRNDL display, go to appropriate TESTS W/O CODES article in ENGINE PERFORMANCE section. If GEAR POSITION does not match PRNDL display, go to next step.
- Using scan tool, monitor BFC SPI serial data link. If BFC command does not match GEAR POSITION from PCM, replace BFC. See REMOVAL & INSTALLATION . If PRNDL display on instrument cluster does not match GEAR POSITION, replace instrument cluster. See INSTRUMENT PANEL article.