The wiring for my left bank upstream sensor is shot. Two of the wires broke off at the connection while examining them from having O2 sensor codes. There is really not enough space to feel good confident to make good connections to re-wire a new connector. (I've tried and now I'm getting more codes: P0135 short circuit, P0132 short circuit, P0155 open/short circuit)

My plan is to find a donor vehicle's connector and splice wires and run a new wiring loom for the O2 sensor to the ECU and the fuse box.

I'm working on connection C0644

I'm able to find out the info for 3 of the wires.

Connector C0644 #1 goes to connector C6035 #9 at the ECU
Connector C0644 #2 goes to connector C6035 #15 at the ECU
Connector C0644 $4 goes to connector C0635 #19 at the ECU

My issue is #3 wire at connector C0644. The NK color wire.

I'm not very good at reading the Rave electrical diagrams. Can someone let me know which connection point this wire goes to?


Thanks,

 

The NK wire from cavity 3 on CO644 runs (eventually) to cavity 3 at connector C0573, which the Electrical Library says is "Beneath engine compartment fuesbox." There are splice connectors available that you can use to make the splices at the ECU and at the fusebox. I'll send you a text with a pic of what those look like.