80 series engine electrical harness information
The following posts are to document the 1FZ-FE US market 80 series 1995-1997 OBD2 main engine wiring harness connectors. While this is not exhaustive in the sense that it covers every single connector, it does cover about 95% of them. The remaining 5% or so are not sourceable outside of the main engine wiring harness itself.
Toyota uses an internal part number nomenclature for connectors used through the vehicle in different harness systems. This connector system for the parts world is prefixed by 90980- XXXXX. The XXXXX are the specific connector number based on an internal Toyota system. Using this 10 digit part number, you can then cross-reference the connector number to the splices and the number needed. This is pretty much the case for all Toyota connectors till about the mid-2000's when they started introducing some 90080-XXXXX prefixes connector numbers.
All splices start with 82998-XXXXX and come in different lengths. Some splices are very cheap; others are very expensive based on function and duty-- fuel injector splices for example are gold covered thus significantly more expensive than say a splice for a tail light connector.
Female connectors are usually on the harness side in most harnesses.
Male connectors are usually on the "application" or "functional" side in most harnesses.
They are always mirror images of each other.
I have uploaded the Toyota connector list to my Google drive and anyone who would like access to it may download it from this link:
Housing_Part_Number_List.pdf
Not all connectors from the above list are available in the US market; some might also be discontinued. Please check with whomever is your Land Cruiser parts professional for availability and pricing.
I have also uploaded the connector housing cross-section list here:
Table_of_Housing_Cross_Section.pdf
Hopefully this information will be useful to folks in the future.
While the main engine wiring harness is still available new from Toyota, I doubt that it will be for much longer considering the last vehicle to use this harness was manufactured 20 years ago this year. This harness is applicable for all FZJ80 trucks (Toyota and Lexus) from 1/1995-12/1997. It will not work on the earlier trucks unfortunately. You will notice the harness has the plastic protector where it runs by the EGR valve on the firewall, it also has the OBD2 diagnostic port (for timing and the like-- cool tool by @NLXTACY at Wit's End by the way), and it also has the large grommet where the harness passes through the firewall on the RH side to connect with the engine ECU.
This thread will also cover the separate oil pressure sender/AC wire sub-harness as well.
Toyota uses an internal part number nomenclature for connectors used through the vehicle in different harness systems. This connector system for the parts world is prefixed by 90980- XXXXX. The XXXXX are the specific connector number based on an internal Toyota system. Using this 10 digit part number, you can then cross-reference the connector number to the splices and the number needed. This is pretty much the case for all Toyota connectors till about the mid-2000's when they started introducing some 90080-XXXXX prefixes connector numbers.
All splices start with 82998-XXXXX and come in different lengths. Some splices are very cheap; others are very expensive based on function and duty-- fuel injector splices for example are gold covered thus significantly more expensive than say a splice for a tail light connector.
Female connectors are usually on the harness side in most harnesses.
Male connectors are usually on the "application" or "functional" side in most harnesses.
They are always mirror images of each other.
I have uploaded the Toyota connector list to my Google drive and anyone who would like access to it may download it from this link:
Housing_Part_Number_List.pdf
Not all connectors from the above list are available in the US market; some might also be discontinued. Please check with whomever is your Land Cruiser parts professional for availability and pricing.
I have also uploaded the connector housing cross-section list here:
Table_of_Housing_Cross_Section.pdf
Hopefully this information will be useful to folks in the future.
While the main engine wiring harness is still available new from Toyota, I doubt that it will be for much longer considering the last vehicle to use this harness was manufactured 20 years ago this year. This harness is applicable for all FZJ80 trucks (Toyota and Lexus) from 1/1995-12/1997. It will not work on the earlier trucks unfortunately. You will notice the harness has the plastic protector where it runs by the EGR valve on the firewall, it also has the OBD2 diagnostic port (for timing and the like-- cool tool by @NLXTACY at Wit's End by the way), and it also has the large grommet where the harness passes through the firewall on the RH side to connect with the engine ECU.
This thread will also cover the separate oil pressure sender/AC wire sub-harness as well.
Last edited: