Notes On Intermittents

Check switch for proper adjustment. Check for intermittent open between fuse, brake switch and ECM. If cruise fuse blows intermittently, check for short to ground from fuse to brake switch, VCC, cruise or ECM.

Fig 1: Code E171 - Cruise Control/VCC Brake Circuit

Fig 2: Code E171 - Cruise Control/VCC Brake Circuit (1 of 2)

Fig 3: Code E171 - Cruise Control/VCC Brake Circuit (2 of 2)

Fig 4: Schematic for Hard Trouble Code EI71