Reading and clearing CEL codes
#1
Reading and clearing CEL codes
I cant seem to find the process after looking at FAQ's and searching, probably not patient enough. Anyone have a link to the process for a 1994 3vze?
#2
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Short TE1 to E1 in the diag connector (paper clip works well) under the hood on the passenger side. Turn on the ignition and count flashes of the CEL.
- Steady flashing means no stored codes.
- Otherwise, a code of 25, for example, will be
- two flashes
- short pause
- five flashes
- longer pause, repeat.
If more than one code, they'll be separated by an intermediate length pause, and then the whole cycle will repeat after a longer pause
To clear the codes, pull the EFI fuse, in the fuse box under the hood, passenger side, near the diag connector.
Also note that there's a sticky link to the entire '93 factory service manual at the top of this forum. Click on it and drill down to engine/MFI System-Diagnostics for the complete info on the diag system, and an explanation of all the codes.
- Steady flashing means no stored codes.
- Otherwise, a code of 25, for example, will be
- two flashes
- short pause
- five flashes
- longer pause, repeat.
If more than one code, they'll be separated by an intermediate length pause, and then the whole cycle will repeat after a longer pause
To clear the codes, pull the EFI fuse, in the fuse box under the hood, passenger side, near the diag connector.
Also note that there's a sticky link to the entire '93 factory service manual at the top of this forum. Click on it and drill down to engine/MFI System-Diagnostics for the complete info on the diag system, and an explanation of all the codes.
Last edited by RJR; 07-26-2014 at 10:28 AM.
#3
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Yes, a little patience is essential when trying to work on trucks.
Here are the codes: http://personal.utulsa.edu/~nathan-b...85diagnosi.pdf
Here are the codes: http://personal.utulsa.edu/~nathan-b...85diagnosi.pdf
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