Test 3.

IGNITION SWITCH IN RUN, ENGINE RUNNING AND A/C ON

NOTE: All measurements are made with the fan controller connection connected. Battery Voltage (B+) should be a minimum of 12.0V.


Pin # 1 B+, coolant temp. <221°F
Pin # 1 <0.5V, coolant temp. >221°F

Pin # 2 not used

Pin # 3 0.0V, coolant temp. <221°F, A/C clutch off
Pin # 3 B+, coolant temp. >221°F
Pin # 3 B+, A/C clutch energized

Pin # 4 B+

Pin # 5 0.0V

Pin # 6 B+, with both WOT and P/S switches closed
Pin # 6 0.0V, either WOT or P/S switches open

Pin # 7 B+

Pin # 8 0.0V, WOT switch open
Pin # 8 0.0V, P/S switch open
Pin # 8 0.0V, A/C pressure swith open
Pin # 8 B+, all of the above switches shut

Pin # 9 B+

Pin # 10 B+, A/C clutch energized

ABBREVIATIONS
Wide Open Throttle (WOT)
Battery Voltage (B+)
Power Steering (P/S)