Cruise Control Will Not Resume, Accelerate Or Tap-Up
- Disconnect cruise control module assembly connector. Turn ignition switch to RUN position. Turn cruise control switch to ON position. Using a test light connected to ground, probe cruise control module assembly connector (harness side) terminal "C" (Gray/Black wire). See WIRING DIAGRAMS . While observing test light, press and hold cruise control switch in R/A position. If test light illuminates, go to next step. If test light does not illuminate, go to step 5).
- Check for a poor connection at cruise control module assembly terminal "C" (Gray/Black wire). If connection is faulty, go to next step. If connection is okay, go to step 4).
- Repair poor connection at cruise control module assembly terminal "C" (Gray/Black wire).
- Replace cruise control module assembly. See CRUISE CONTROL MODULE ASSEMBLY R & I.
- Check for a poor connection or open in Gray/Black wire between cruise control functional switches and cruise control module assembly. See WIRING DIAGRAMS . If Gray/Black wire is faulty, go to next step. If Gray/Black wire is okay, go to step 7).
- Repair poor connection or open in Gray/Black wire between cruise control functional switches and cruise control module assembly.
- Replace cruise control functional switches. See procedures in CRUISE CONTROL FUNCTIONAL SWITCHES .