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Old 07-08-2009, 02:56 PM
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compress ignite compress ignite is offline
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Join Date: Feb 2004
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'90-91 OM 602

Gets two Auxiliary Fan Relays:

(on the '90-91 [OM602?] K9 [the High Speed Fan Relay]"Load" side is "Straight" wired to X4/10 with No Fuse In Line.)

The original Relays were not fused,
and at some point the part number superseded to the current Relays both of
which are fused.

1.001 542 96 19 (K9 High Speed Auxiliary Fan Relay) [With 30 Amp Fuse]
[This fuse is the "Load" side of the K9 which is wired directly to X4/10
Which makes this circuit "HOT" whenever the Battery is connected]
2.002 542 01 19 (K10 Low Speed Auxiliary Fan Relay) [with 15 Amp Fuse]
[MB says you may upgrade the 15 Amp Fuse to a 25 Amp Fuse]


If you take the time to follow the developments of these relays circuitry
and fusing onward you can visualize the areas that
caused dangers with: Dead Shorts , Etc.
Attached Thumbnails
Ground in non fused circuit?-screenhunter_02-jul.-08-14.47.jpg   Ground in non fused circuit?-screenhunter_03-jul.-08-14.51.jpg  
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Last edited by compress ignite; 07-08-2009 at 07:53 PM.
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