Ignition MUX Switch Input Open
NOTE:
After making any repairs, perform BODY VERIFICATION TEST
under VERIFICATION TESTS.
- Turn ignition off. Disconnect ignition switch 5-pin connector. See Fig 1 . Connect a fused jumper wire between harness side of ignition switch connector terminal No. 2 (Violet/Brown wire) and ground. Using scan tool, select SENSORS and monitor IGNITION SW voltage. If scan tool displays 0.0 volts, go to next step. If scan tool does not display 0.0 volts, go to step 3 .
- Locate and access Body Control Module (BCM) connector C5. See COMPONENT LOCATIONS . See Figure . Using a jumper wire connected to ground, backprobe BCM connector C5 terminal No. 10 (Violet/Brown wire). Monitor IGNITION SW voltage on scan tool. If scan tool displays 0.0 volts, repair open in Violet/Brown wire between ignition switch and BCM. If scan tool does not display 0.0 volts, replace BCM. See BODY CONTROL MODULE under REMOVAL & INSTALLATION.
- Connect a fused jumper wire between harness side of ignition switch connector terminals No. 1 (Violet/Orange wire) and No. 2 (Violet/Brown wire). Using scan tool, select SENSORS and monitor IGNITION SW voltage. If scan tool does not display 0.0 volts, go to next step. If scan tool displays 0.0 volts, replace ignition switch. See STEERING COLUMN SWITCHES - CARAVAN, TOWN & COUNTRY, & VOYAGER article.
- Locate and access Body Control Module (BCM) connector C4. See COMPONENT LOCATIONS . See Figure . Using a jumper wire connected to ground, backprobe BCM connector C4 terminal No. 14 (Violet/Orange wire). Monitor IGNITION SW voltage on scan tool. If scan tool displays 0.0 volts, repair open in Violet/Orange wire between ignition switch and BCM. If scan tool does not display 0.0 volts, replace BCM. See BODY CONTROL MODULE under REMOVAL & INSTALLATION.