can I make my jeep electric fan run two speed with a volvo relay? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

03-30-2016, 05:31 PM

#12

hatzie

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Join Date: Oct 2008

Location: Wentworth, NH

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Re: can I make my jeep electric fan run two speed with a volvo relay?

Quote:

Originally Posted by SkinnyG

No, it's just a relay, but big enough for the starter on a Cavalier. Your fan switch will trigger it, and the relay will connect the current to it. It's just a big, cheap, plentiful, relay at the wreckers.

Those are just Metripack 630 Mini ISO relays in the 18ga wire on the control side of the starter solenoid. 30A at most probably more like 20A.

The reason they used them is to isolate the BCM or anti theft module output that controls starter cranking. Controlling the starter using the BCM is part of the theft deterrent system...

__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8

RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...

Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.

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