Weird electrical issue. No start, no WTS
#1
Weird electrical issue. No start, no WTS
My 01 250 has *almost* no electrical after trying to start it yesterday.
I got in the truck, turned the key, and before the engine could crank everything went dark. Now I have no WTS (but the ABS light is dimly lit), no tach, and no crank. A scan tool will get 12v power from the OBDII jack until the point where I turn the key to the "on" then it loses power.
There's 12v in the always on cigarette lighter on the dash
But here's the really weird part; when I open the door the dome and door lights blink like a turn signal. I checked and relay #1 in the fuse panel is the one clicking.
I checked fuse #30 and it was intact. Just in case I unhooked the fuel bowl heater anyways.
I check the PCM connection and it seems OK. I opened the connection and checked for any damage inside the weather proof fitting and didn't see anything.
I didn't have a chance to look at the IDM yet.
This almost seems like an ingnition problem except for the weirdness with the domelight/relay#1
What does relay#1 control?
Also, is there a good wiring diagram I could look at?
TIA
I got in the truck, turned the key, and before the engine could crank everything went dark. Now I have no WTS (but the ABS light is dimly lit), no tach, and no crank. A scan tool will get 12v power from the OBDII jack until the point where I turn the key to the "on" then it loses power.
There's 12v in the always on cigarette lighter on the dash
But here's the really weird part; when I open the door the dome and door lights blink like a turn signal. I checked and relay #1 in the fuse panel is the one clicking.
I checked fuse #30 and it was intact. Just in case I unhooked the fuel bowl heater anyways.
I check the PCM connection and it seems OK. I opened the connection and checked for any damage inside the weather proof fitting and didn't see anything.
I didn't have a chance to look at the IDM yet.
This almost seems like an ingnition problem except for the weirdness with the domelight/relay#1
What does relay#1 control?
Also, is there a good wiring diagram I could look at?
TIA
#3
#4
#5
always start with simple stuff, you'd be surprised how many peoples trucks I've seen wont start....because their oil is low in the crankcase... doh...
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