i opened up the fuse box so i can access it from the back.

i took the metal strip plate out (the one connecting to the (-) battery lead) and put it back in.

now battery ground to common terminal of ASD relay reads 12.4V. the A/C relay (the one right next to the ASD) stopped showing any voltage now when connected to battery ground, from any terminal socket.

the fuel injector connector i managed to pull out yesterday shows ~7V still, only with ignition key to ON position.
the yellow wire on the camshaft sensor connector (in the distributor) shows 5.03V with ignition ON.
the yellow wire on crankshaft connector shows 5.03V with ignition ON.

i found another relay outside the fuse box, mounted to the metal frame holding the fuse box. i dont know what it is. it shows 12.43V with ignition ON, between battery ground and a control terminal, but no voltage between battery ground and common terminal...weird.

still no spark from ignition coil.

Use the wire colors on the schematic to determine which relay is which. You're learning.

Since you have the fuse panel disassembled, connect a jumper wire between the common terminal on the ASD relay and the B+ battery terminal and see what happens to the voltages.

i stuck a paper clip in the back of the common ASD relay in the back of the fuse box, and...

well nothing happened, voltages read the same.

i guess i wouldve seen a difference before, but now that i fixed the short, (-) battery ground to common ASD relay terminal reads 12.4V when it is jumped directly to (+) battery hot or when it is left untouched (since it is supposed to be connected to the (+) of battery anyways inside the fuse box.

is this correct?


BTW, i bought the Haynes manual for this vehicle...i was expecting it to mention exact voltage specifications for electrical components...but nothing.

i read somewhere that some vehicles need less than 12V to operate the fuel injection components, would this one be one of those? in that case the 7V at injectors would be ok.

the big problem is NO spark at a good ignition coil...

What do you mean you fixed the short? Did you short the ASD common terminal to ground with your paper clip?



The relay terminal numbers can be found on the bottom of the relay.

Terminal number 30 is connected to battery voltage and can be switched or B + (hot) at all times.

Terminal number 87A is connected (a circuit is formed) to terminal 30 in the de-energized (normally OFF) position.

Terminal number 87 is connected (a circuit is formed) to terminal 30 in the energized (ON) position. Terminal number 87 then supplies battery voltage to the component being operated.

Terminal number 86 is connected to a switched power source.

Terminal number 85 is grounded by the Engine Controller.

yeah, i pretty much understand how this 5 terminal relay works.

by fixing the short i meant that the common terminal now reads battery voltage (12V) instead of 8V. I assumed the previous lower voltage was because of some metal parts touching (shorting) when they were not supposed to do so, which i fixed when i messed around with the metal backplate that connects the (+) battery electrode to the rest of the fuse box.

now it read 12V when i connected the terminal directly (jumped) to the (+) battery electrode or when i left it the way it is (which should be connected to the (+) battery electrode by default).

i tested the ASD relay and the starter relay. the circuitry in the fuse box seems OK. but still no spark at ignition coil.