Terminals 87 & 87c of relays R04 (oil cooler fan relay) & R14 (AC condenser fan relay) are used for measuring the status of the series resistors. Shown are two male spade connectors that are inserted into the appropriate locations in the R14 relay socket for measurement purposes. Relay R04 is shown just to the right of relay socket R14. The relay numbers are molded into the fuse/relay panel.
An open circuit or resistance other than 0.45 ohms indicates an unserviceable series resistor.
Note that the average digital multimeter will measure something in the order of 5 Ohms or less which includes the resistance of the meter leads and banana plug resistance.