1992 toyota tercel no trouble codes medium speed miss,idles ok.

How do I hook up a snap-on MT 2500 scanner with multi-1 connector that has blk-wh-R-BL-Gr-yel-brn

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Parkman

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Make
Toyota
Model
Tercel
Year
1992
Miles
189,000
Engine
3EE rebuilt 130,000
1992 toyota tercel DLX 5spd has medium speed miss, no check engine light
 

billr

wrench
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Messages
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Are the colors on your cable in the order you listed? Mine are not. Mine are BLK-WHT-RED-GRN-BRN-YEL-BLU.

Are you connecting to a 17-cavity round connector, that has sockets in only 14 cavities?

If we are talking about the same config, then post a picture looking into the connector. I have a Snappy instruction sheet that shows the connections and can tell you which color Snappy wire goes into which cavity on your round connector. There is also an under-hood "service connector" (in front of firewall) that I think also needs to be jumpered to get scans. That one needs the Toyota BLK and Blu wires connected.

On the Multi-1, the BLK wire is ground and only four others are needed, so I hope we can do this with just a picture and some words. I could scan this instruction sheet, but it will be a bother don't want to do it if not necessary
 

Parkman

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Thanks for the info. my connector is under the hood next to the fuse box and is mostly square.Yes the colors were as I listed, but they are loose ended and can be used in any configuration.
 

Parkman

Sr. Member
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Messages
182
Points
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Doing all the distributor tests came out fine and they have no tests for the ignitor other than sub another one, so I have another used one I will try tomorrow thanks.
 

billr

wrench
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Sadly, that info from the <Charm.li> manual does not correlate with what is on the Snappy instruction sheet. The info I have is:

Snap-On BLK wire => ground
Snap-On WHT => Toyota "TE2" terminal
Snap-On RED => Toyota "TE1" terminal
Snap-On GRN => Toyota "ENG (VF!)" terminal
Snap-On BLU => Toyota "W" terminal

Also, the Multi-1 has to be powered from cig lighter, and that other ("Service") connector has to be jumpered.

Do you have the correct MT2500 cartridge?

I can't attest to either the Charm or Snappy info as being correct. I can only pass on to you what Snappy published for the MT2500-90 Multi-1 adapter cable. This is from Form #2526 printed 3/91
 

grcauto

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Make up your own.


Data Link Connector: Diagrams​

225197627





NOTE: All terminals are not applicable to all models. However, terminal positions are standard.

pro multis · About Operation CHARM
 

billr

wrench
Staff member
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Messages
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Points
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OP, you say "no codes"; but do you get the "all OK" 2 Hz blink when you jumper TE1 to E1?
 
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