Quote:
Originally Posted by Dan_P
This is probably dumb but I am no good at electrical and it makes me nervous. Just to be sure I get this right…
Your recommendation is to tap one end of the jumper into the brown wire at the VR. Add a 10 ohm resistor on the jumper. And tap the other end of the jumper into a 12V hot source. The hot source is constant 12v or key on (acc) hot?
Hopefully that Q makes sense.
Thanks for all the help.
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You can use a 12 volt constant hot source as a temporary jumper, just remember to disconnect it after the test or it will drain the battery.
You might have a poor connection on the brown wire in the firewall plug or at the key switch which could reduce the voltage at the VR to 3 volts.
This diagram shows the ACC wire and the 24 ga. resistance wire on the key switch. The 12ga brown wire runs to the fuse panel and the resistance wire runs to the inside connector for the firewall block.
Here's the engine side of the firewall block. there are more than 1 brown wires in it so you'll need to find the 16 gauge wire for the VR.
