ModMan
Active Member
On my 1992 300TE 4matic there is an 8 pin diagnostic port next to the fusebox.
I am trying to read out the codes to find out what the big yellow triangle and 4matic lights are on for.
Going by the guides I have found, there are 2 types of diagnostic readers I can make. One has 2 pins, and one has 3. It looks like the three pin one is only needed if you have the 16 pin diagnostic port, is this correct? If so, tonight I've been trying to read the codes (Using a voltmeter, I'll buy an LED tomorrow) but am not having any joy. (I don't get any reading on most of the ports.
My undestanding is:
Pin1 = Ground (Always have the negative of your fault code reader to this)
Pin2 = Not Used
Pin3 = CIS-E (Fuel injection)
Pin4 = Diesel system?
Pin5 = 4matic
Pin6 = SRS
Pin7 = A/C
Pin8 = Not used
I went through and got a few 4matic errors but the voltmeter isn't good enough to get the codes as it fluctuates a bit. So I cleared all the codes, but the 4matic light is still on.
I have been doing this with the ignition in position 2 and not started the car once.
Just to add, it appears only Pins 1,5,6,7 are hooked up as I can only see copper contacts in those ones.
Any hints and tips?
Cheers, Daniel
I am trying to read out the codes to find out what the big yellow triangle and 4matic lights are on for.
Going by the guides I have found, there are 2 types of diagnostic readers I can make. One has 2 pins, and one has 3. It looks like the three pin one is only needed if you have the 16 pin diagnostic port, is this correct? If so, tonight I've been trying to read the codes (Using a voltmeter, I'll buy an LED tomorrow) but am not having any joy. (I don't get any reading on most of the ports.
My undestanding is:
Pin1 = Ground (Always have the negative of your fault code reader to this)
Pin2 = Not Used
Pin3 = CIS-E (Fuel injection)
Pin4 = Diesel system?
Pin5 = 4matic
Pin6 = SRS
Pin7 = A/C
Pin8 = Not used
I went through and got a few 4matic errors but the voltmeter isn't good enough to get the codes as it fluctuates a bit. So I cleared all the codes, but the 4matic light is still on.
I have been doing this with the ignition in position 2 and not started the car once.
Just to add, it appears only Pins 1,5,6,7 are hooked up as I can only see copper contacts in those ones.
Any hints and tips?
Cheers, Daniel
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