Notes On INTERMITTENTS

If intermittent code B441 is being set, manipulate related wiring while observing cooling fans feedback input BI41, and commanding high fans or fans off in override diagnostic mode. If failure is induced, fans status will not agree with commanded operation. This will help to isolate location of malfunction.

Fig 1: Code B441 Schematic, Cooling Fans Problem

Fig 2: Code B441 Flow Chart, Cooling Fans Problem (1 Of 2)

Fig 3: Code B441 Flow Chart, Cooling Fans Problem (1 Of 2)

Fig 4: Code B441 Flow Chart, Cooling Fans Problem (2 Of 2)

Fig 5: Code B441 Flow Chart, Cooling Fans Problem (2 Of 2)

Fig 6: From Code B441 (1 Of 2)