Shorting Plug/Transmitter Program Mode ("F" Series Pickup)
- Ensure shorting plug has not been inserted into program connector behind left side of instrument panel. Remove shorting plug if present. Go to next step.
- Disconnect control module connector C241. Check for continuity between ground and White/Yellow wire of program connector. If continuity exists, repair short-to-ground in White/Yellow wire. If no continuity exists, go to next step.
- Using test light, check for continuity between ground and White/Yellow wire of program connector. If test light glows, repair short-to-power in White/Yellow wire. If test light does not glow, go to next step.
- Check for continuity between ground and Gray/Yellow wire of program connector. If continuity exists, repair short-to-ground in Gray/Yellow wire. If no continuity exists, go to next step.
- Using test light, check for continuity between ground and Gray/Yellow wire of program connector. If test light glows, repair short-to-power in Gray/Yellow wire. If test light does not glow, go to next step.
- Measure voltage between connector C241, terminal No. 15 and ground. See Figure . If reading is between 4 and 6 volts, go to next step. If reading is less than 4, or more than 6 volts, replace door lock control module.
- Check for continuity between ground and connector C241, terminal No. 10. If continuity exists, go to next step. If no continuity exists, replace door lock control module.
- Reconnect connector C241. Measure voltage between ground and White/Yellow wire of program connector. If reading is between 4 and 6 volts, go to next step. If reading is less than 4 volts, or more than 6 volts, repair open in White/Yellow wire.
- Check for continuity between ground and Gray/Yellow wire of program connector. If continuity exists, transmitter program mode is okay. If no continuity exists, repair open in Gray/Yellow wire.