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#1
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'91 4matic, cannot erase codes; turn off light
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I finally had the transfer case in my '91 TE replaced with a used unit. Everything went well until it came time to erase the stored 4Matic codes to turn off the 4Matic light on the dash. I can't seem to read or erase the codes. When I ground pins 1 and 5 the 4Matic light gets brighter then dims when the pins are ungrounded. After searching the forum I took a flyer and replaced the OVP just in case. One thread mentioned that over a periiod of time the 4matic ecm can lose memory and needs rebooted but I cannot find any info on rebooting the 4matic brain. Anyone one how to do this? Any other thoughts? Thank you. |
#2
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I know you probably already did this...but my 4Matic light was on. Turns out the transmission fluid was too high. Then, I unplugged the battery for about an hour and it went off.
It occasionally comes on at acceleration from a stop though.
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2004 E320 Wagon W211 2000 CLK430 Convertible W208 1985 300SD W126 1983 300D W123 |
#3
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Thanks for the thought, tried disconnecting the battery and jumping pis 1 and 5. Anyone?
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#4
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1 1/2 year later clarification...light stays on all the time now. System still seems to work.
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__________________
2004 E320 Wagon W211 2000 CLK430 Convertible W208 1985 300SD W126 1983 300D W123 |
#5
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If you just unplug the bulb the system will fail the BIT. So, the system will not work, but at least you won't see the light. I fixed mine for a while with a piece of black electrical tape over the light. ;-)
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http://i284.photobucket.com/albums/l...aman/Fleet.jpg Peach Parts W124.128 User Group. 80 280SL 85 300SD 87 300TD 92 300D 2.5 Turbo 92 300TE 4Matic |
#6
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Yup...I have electrical tape on mine as well. :/
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2004 E320 Wagon W211 2000 CLK430 Convertible W208 1985 300SD W126 1983 300D W123 |
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