Diagnostics: Wiring Diagram voltage discrepancies?

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Sep 20, 2023
Threads
17
Messages
660
Location
Frisco, CO
Looking for others that have delve deep into the wiring schematics for the 100 series.

I have been running some diag on the ecm of a '99 and have been finding some discrepancies in what Toyota claims the voltages should be at certain pinouts.
I'll find in one section of a modules terminal layout a set voltage requirement and in another section of the manual it will have another voltage request. For example, one section will call for batt voltage (10-14v) and another will look for 3-5 volts.

I have been using the downloads made available on this site but I also have a shop account with Mitchell On-demand. The Mitchell doesn't have as much info regarding the terminal layouts and voltages so I have been relying on the free downloads. I'm assuming that these are copies of the factory manuals?

Thanks all
 

Users who are viewing this thread

Back
Top Bottom