I have no click coming from the main relay when I turn the key to on. According to one of Hailers posts, I'm checking for 12 VDC across the black/green and white/blue wires from the main relays 4 pin connector. I have no voltage. Following through with Hailers post, I jumped the black/green and black/yellow wires together. I get 12 VDC @ the small connctor Black/green wire at the primary coil. Where should I head next?

 

Sorry misread Hailers post. I DO have battery voltage on the black/green and white/blue wires. So, I have a bad main relay?

 

Pin 3I on the ecu reads only 2.3 volts when key is turned to on. What could cause that?

 

Does pin 3I run directly to the main relay?

 

Bad Main Relay but most probable the MAIN RELAY isn't being pulled in. It gets pulled in when the key is turned to ON. So turn the key to ON, and go to the MAIN RELAY plug that has just two sockets. The BLACK/WHITE wire should have batt voltage on it if the key is to ON and the ENGINE FUSE is good.

3I only has batt voltage when the MAIN RELAY is pulled in.

Does your starter turn over when you go to start??????? Not relatd to the Main Relay stuff. Just a clue for us.

 

I have 12 volts on that wire when the key is on. But, I have .126 volts when the key is off?

 

Yes the starter runs and the motor turns. Should the black/white wire going to the 4 prong connector of the main relay, ever see ground?

 

No, the black/white wire should have 12v coming from the ENGINE fuse which in turn gets power from the ignition switch.

IF say you have the key to OFF and put a meter on the black/white wire and see a gnd, don't worry. Your most PROBABLY reading thru a relay like the circuit opening relay. But I'm not real sure about that since the afm door would have to be in the open position for it to do that.

So, did it have 12v????/ Or if you saw a gnd on it, what did it read???/ Like .2 ohm or .6 ohms???? or something like that?