No power to Coils?

2007 TOYOTA CAMRY
300,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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JOE1953
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engine crank but no start no spark. I check for volts at the connector at the coils wires, I'm not getting any volts or power to any of the coils brown wire +B where does this wire get its power from and where it connect to? do it run from coils to Ignition switch or the ECU? can you send me the 2.4l engine controls wiring diagram? how do I fix this problem?
Sep 19, 2025 at 8:08 AM
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STRAILER
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The power to the coils (brown wire) comes from the INJ fuse in the fuse panel on the left side of the dash. Please check it out and get back to me.
Sep 19, 2025 at 10:32 AM
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JOE1953
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The INJ fuse is good. do this car have a EFI relay? because there is 0 volts at the coils and fuel Injectors.
Mar 14, 2026 at 6:53 PM
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STRAILER
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Do you have power to/through the INJ fuse?
Mar 15, 2026 at 9:48 AM
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JOE1953
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yes I have power to the INJ fuse. I check the fuses under the hood is there where the INJ fuse is?
Mar 15, 2026 at 12:50 PM
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STRAILER
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Yes, that is where the INJ fuse is. If you have power at the fuse you should have power at the coils, here is the wiring diagram so you can see how it works. Check out the images (below). Ken
Image (Click to enlarge)
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Mar 16, 2026 at 9:13 AM
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JOE1953
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look like the volts go and come. right now it show 5.06 volts at the brown wire on all four coils
Mar 16, 2026 at 10:28 AM
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STRAILER
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It sounds like you have a shorted coil, I would unplug them all and then test the voltage at the connectors. Let me know.
Mar 17, 2026 at 8:44 AM