I have a 92 and 95 diesels with no power to the climate contol board, hence no blower. Fuses check out ok. Any ideas?

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51 willys M38
62 willys M38A1
79 chevy
92 300D
95 300D
96 vision recumbent
2004 Wrangler

Recheck fuse 7..test both sides of the holder [ not fuse ends] with a 12v test lamp.....................

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A Dalton

Today the fuses are all good, power to the climate control. If I jumper a motor switch contact to ground I believe I can hear a relay and the faint sound of a motor turning.

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51 willys M38
62 willys M38A1
79 chevy
92 300D
95 300D
96 vision recumbent
2004 Wrangler

Which chassis ??

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A Dalton

124.

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51 willys M38
62 willys M38A1
79 chevy
92 300D
95 300D
96 vision recumbent
2004 Wrangler

I know 124...my problem is your post states a '92 and a '95 ..and my schematics show a 124.131 and a 124.128 .. each with a different blower schematic ..
...so, which one would you like me to advise you on ??????????????????

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A Dalton

Sorry. The one in pieces at the moment is the '92 300D.

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51 willys M38
62 willys M38A1
79 chevy
92 300D
95 300D
96 vision recumbent
2004 Wrangler

Boo -Yaaa....that was easy.

OK You have chassis 124.128

behind the brake booster is a 3 prong plug.
Red/Yl/Blk

W/Key ON, CP on Defrost and Fan sw on High, take a Voltage test from Red to Blk..should have 12v
If NO, then check fuse link at shock tower.
If yes, then take V reading at Yl to Blk..should have 2-8 V..if No, CP is not giving signal, if yes , regulator or blower are bad.

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A Dalton

Thanks, I'll give it a shot. Let you know tomorrow.

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51 willys M38
62 willys M38A1
79 chevy
92 300D
95 300D
96 vision recumbent
2004 Wrangler

hey arthur, will this diagnostic be the same on a 1989 124 gasser (260E)?

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W108M117(1972) repaired after deer hit
W124M103(1987)
W124M103(1989) -- sold to son's friend
W124M119(1993) --
W124M103(1987 -- 5 speed Euro) - sold to forum member
W124M103(1989) -- TE
W123OM616(1977)
W201M103(1990) parts car

Yes

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A Dalton

I know this is an older thread but lets see if you guys can help me figure this out.
When i measure the voltage at the 3 pins with ignition on CC at defrost and fan high, I get 0 volts on all pins.
With ignition off I get
10v on red/yellow
12.1v on black/red
Fuse link at shock tower does the same. It has 12V going trough it with ignition off 0V with ignition on.
What now?

I've replaced the CC unit and tried again with CC temp wheel set to max heat, defrost, fan high.
This time
12V bl/rd
2.2V rd/yl
Than I thought thats it, I put the plug back in and the blower motor turned on.
Until i switched the ignition off and on again now it's dead.