Hi: I'm troubleshooting a US model '85 245 non turbo, automatic. that won't start. it sat on the coast for 5 years and I suspect corrosion on grounds or connections. Ii has a new fuel relay but the numbers on the plugs and the wire colors in the car don't match the numbers or colors in Haynes or Chiltons. Is there a link that shows what the transition is supposed to be? I want to test the wires but don't know which is which.

the wire numbers on the relay are (clockwise from top left): 86/1, 87/1, 86/2, 30, 85, 87/2
the wire numbers on the diagram (in unknown order) are: 87, 87b, 30, 31, 31b, 15

I'm guessing 87 = 87/1, 87/2 = 87b, 86 is probably 31 and 30 = 30, that leaves 85 = 15
is there some kind of rule?

thanks

 

the proper relay is a Stribel, logo looks like a circle with kind of a dollar sign inside (S with curved vertical lines like )( )

clones from other vendors amy have other designations

the /only/ wiring diagrams I'd trust are the Volvo "Green Books" from the proper year. My copy of the 1985 240,260 Wiring Diagrams volume (TP-30808-1) says...

red to pin 30
an orange and a brown wire to pin 87/1
a yellow-black wire to pin 86/1
a yellow/red wire to pin 87/2
a blue/green wire to pin 86/2
and a red-black wire to pin 85

looking at the bottom of the relay, with the red wire (pin 30) on the lower left, 3 wide, 2 high, the top row is from left-to right, pins 85, 87/2, 86/1, and the bottom row L-R is pins 30, 86/2, 87/1

the /1 and /2 refer to the two relays inside, where relay 1 powers the ECU and MAF, and relay 2 powers the fuel pumps, O2 sensor heater, idle air control valve, and injectors.

pin 30 is the power to the relay switches and the 'main' /1 coil, pin 87/? are the outputs, pin 86/? controls the relay coils, and pin 85 is the /2 coil's power.

 

Thanks Pierce

Where does the blue-green wire (86/2) go? The diagrams say it's a ground but it doesn't test. Does anyone know where the other end goes? There's a list of grounds in the wiring pdf, one says it's the fuel relay ground, but there's no blue-green wire there.
When coil /2 closes there's no continuity at 86/2. A new relay is the same.