Multiple DTC' Open, high and low circuits?

Tiny
MICHAEL POWELL
  • MEMBER
  • 2004 TOYOTA CAMRY
  • 3.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 230,000 MILES
While working on replacing the thermostat I dropped a bolt. And while trying to fish it out. Something sparked and probably shorted out fuses, relays, or burnt wires.
The DTC's are as follows;
P0010 cam pos A bank 1 open
P0020 cam pos A bank 2 open
P0748 A transmission pressure control solenoid A
P0778 B trans solenoid B
P0986 shift solenoid E circuit high
P2716 solenoid D
I tried replacing cam position sensors just to see if the sensor was fried but the code remained after replacing it.
I wondering if all of these are possibly on one fuse or relay that I can try replacing or what to do next. I'm not very good at reading wiring schematics or determining what fuses or relays to check or if there's a fusible link somewhere.
I also wanted to say the engine will turn over but not fire. I did get to start once and it idled fine but would not accelerate at all pushing on the gas pedal and the rpm gauge wouldn't go up. And the speedometer didn't move at all. I also tried every actuator that was able to be tested without the car running. And they would all cycle between off and on. Including the fuel pump. There are also a couple of of other codes but I think they are probably there because I have the airbox out and disconnected at the moment. My check engine light will sometimes flicker too with the key out and I could hear a humming until I disconnect the battery. Thank you
Thursday, November 7th, 2024 AT 1:55 AM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
I would check to make sure the engine wiring harness ground is secure, next let's check the fuses because anytime there is a spark a fuse can be blown. Here is a guide to help and the fuse locations as well, please test the fuses with the key on.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If you find a blown fuse, replacing it can clear the codes. Check out the images (below). Let us know what you find.
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Thursday, November 7th, 2024 AT 6:12 PM
Tiny
MICHAEL POWELL
  • MEMBER
  • 20 POSTS
Can you tell where the engine wiring harness ground is?
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Friday, November 8th, 2024 AT 7:33 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
They don't show the locations exactly, did you have this problem before the repairs? If not, I would look around the area where you were working. It says the ground is on the right side of the surge tank. Check out the images (below). Please let us know what happens.
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Friday, November 8th, 2024 AT 10:32 AM
Tiny
MICHAEL POWELL
  • MEMBER
  • 20 POSTS
Thanks so much. It did turn out to be the ground wire bolted to the driver's side of the engine block. All the codes are gone at the moment. But the maintenance light is still on. I guess I'll just have to wait for the computer to go through a few cycles and see if anything comes back.
Thank God and you of course. I thought this was going to be much worse.
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Friday, November 8th, 2024 AT 2:50 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Yay! we fixed it, nice team work :) You can clear the codes as well to give the PCM a fresh start, Can you please leave us a rating? (copy entire link)

https://g.page/r/CZdEnyCkGgm6EB0/review

and

https://www.sitejabber.com/reviews/2carpros.com

Thank you in advance !
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Saturday, November 9th, 2024 AT 10:52 AM

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