Volvo Workshop Manuals
940 L4-2.3L SOHC VIN 88 B230F (1992)
Engine, Cooling and Exhaust > Cooling System > Radiator Cooling Fan > Radiator Cooling Fan Motor > Component Information > Testing and Inspection > Engine Cooling Fan & Relay > Page 3615
Radiator Cooling Fan Motor: Testing and Inspection
Constant Half Speed
1. Short circuit to ground in low speed signal cable.
Constant High Speed
1. Short circuit to ground in high speed signal cable.
No Low Speed
Defective fan or cooling fan relay.
No High Speed
1. Open circuit in high speed signal cable.
No Low or High Speed
1. Open circuit in power cable to ground lead.
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