CDL Madness
CDL Sensor Switch (4wd Indicator Switch) on the transfer case - On my 80, I removed the switch (wasn't working) from the Tcase and cleaned it, with both 18v battery power and some contact cleaner. It tests nicely for continuity when pressed and also resistance. I can hook it into the harness connector and manually cycle the switch to activate the CDL light on the dash AND engage the RR&FF diff locks. The paperclip jumper test does the same. Problem is, it doesn't work when I install it back into the transfer case. The switch from my LX performs exactly the same when swapped into the 80.
What the hell am I overlooking on the 80? IE, why does the switch NOT function when installed? Both trucks have the Pin-7 Mod and CDL switch on the dash. I've swapped the Sensor Switches around 3 times and each truck/switch combo always get the same results outlined above.
IDIOT NOTE: I'll be jacking up the saggy-spring LX next time I have to crawl under it 100 times. I cursed it each time, and even more when I slid comfortably under the lifted 80.
CDL Sensor Switch (4wd Indicator Switch) on the transfer case - On my 80, I removed the switch (wasn't working) from the Tcase and cleaned it, with both 18v battery power and some contact cleaner. It tests nicely for continuity when pressed and also resistance. I can hook it into the harness connector and manually cycle the switch to activate the CDL light on the dash AND engage the RR&FF diff locks. The paperclip jumper test does the same. Problem is, it doesn't work when I install it back into the transfer case. The switch from my LX performs exactly the same when swapped into the 80.
What the hell am I overlooking on the 80? IE, why does the switch NOT function when installed? Both trucks have the Pin-7 Mod and CDL switch on the dash. I've swapped the Sensor Switches around 3 times and each truck/switch combo always get the same results outlined above.
IDIOT NOTE: I'll be jacking up the saggy-spring LX next time I have to crawl under it 100 times. I cursed it each time, and even more when I slid comfortably under the lifted 80.
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