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Is350 Wont start (won’t turn over really) battery good
Help please Is350 won’t start, has anyone else had these problems? It just happened out of nowhere. It will crank a few times and then stop and not let me try again for a long period of time
There's a black box on the forward RHS of the engine with a bunch of harnesses going to it. There should be a sticker labelling it as the injector driver. Check to see if one of those is disconnected. If not, I'd suspect a wire break somewhere.
thank you for the reply I have been really at a loss of what to even check
have you seen this before? Curious why you think to do this
Originally Posted by Ultra4
There's a black box on the forward RHS of the engine with a bunch of harnesses going to it. There should be a sticker labelling it as the injector driver. Check to see if one of those is disconnected. If not, I'd suspect a wire break somewhere.
I haven't seen any injector-related codes myself, but if OBD2 is saying something about the injector module, that box is somehow involved.
My prime suspects right now are a bunch of dumb stuff: loose connector, pinched wire, or the box itself is bad. Maybe your water pump's starting to go, leaked on it, and fried it? I dunno.
Nothing fun to diagnose, for sure.
Edit: Pop off the cover to the bigger black box on the outboard LHS of the engine bay, right before the wheel well. The smaller one is your ECU. The bigger one is a Fuse/Relay box. The manual's not extremely clear on this, and my car's under a buncha snow so checking the Chinese blueprint isn't an option, but there appears to be a 30amp relay dedicated to injectors, and two 25amp relays labelled EFI 1 and 2. Check those relays for discolored/melted terminals, or try to swap in a good known relay. While there, eyeball all your fuses...
I’ve searched through a bunch of similar posts people have made and seems to be to try unplugging the fuel pressure sensor (that will allow it to start if it’s the issue then I know what need to be replaced
I’ve searched through a bunch of similar posts people have made and seems to be to try unplugging the fuel pressure sensor (that will allow it to start if it’s the issue then I know what need to be replaced
One tell sign of what I've read over the years. If indeed it was the fuel sensor. You would not be able to read the code with the scan tool. I could be wrong though.
That doesn't look like Techstream but I could be mistaken. Is the tool you are using able to look at the available networks? The ECU communicates to the injectors driver Ultra circled through the CAN bus network. What I am curious to know is if the ECU can see other modules?
Techstream has a health check function to scan all of modules and report back their status. Your next step is to pull up a schematic and look at the CAN HIGH and CAN LOW data lines and find those color and designation at both ECU and Injector driver. With this info you know what wires to test.
www.alldatadiy.com is a cheap year long subscription to view schemo's and other repair, service information. I just extended my subscription for $15 adding another 12months to it. Take a look, it would be very helpful about now.
Bottom left is connector A5, pins 24 and 25 white and black wires = CANL and CANH. The others I just through in because....
And your fuses....
Last edited by 2013FSport; 01-02-20 at 08:06 PM.
Reason: PICS
12-29-19, 02:00 PM
Is350 Wont start (won’t turn over really) battery good
