Apad wiring diagram. After checking the wiring reset the control module by cycling ignition four times as described above. Nc system with apads evaporator 4blowapads to the electrical contacts allowing diagnostics of sensor wiring and connector faults. If the module does not reset after a few tries and all wiring has been confirmed as ok replace the control module. 4200 4300 4400 7300 7400 7500 8500 8600 series built january 1 2002 to september 30 2002 electrical circuit diagrams iii 89.
Year model application oem. Ac cab tstat onofi figure the inputs and outputs of a control module line diagram. Refer to question b2. Determine if the high and low pressure cutout switches are normally open no or normally closed nc by checking resistance values across the switch terminals with an ohm meter.
We also do have the correct amount of freon in system. Volvo wiring diagram fh 1. With the switches installed on the vehicle and with a full refrigerant charge disconnect the wiring going to the pressure switches. Ive tried to fix this 4 blink problem.
Refer to the following diagrams use the most convenient template. In contrast the body remained largely unchanged but the 1965 and 1966 models t.