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Old 12-24-2019, 04:11 PM   #1
Cesar_h07
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Join Date: Sep 2018
Location: Indiana
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2018 WRX
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Default 2018 WRX No Response when turning key to crank engine at random times.

I want to find out if anyone else has experienced this issue and found the cause.

I drive a 2018 wrx manual with a stage 2 tune from modern automotive performance that I have had for a year and a half. I got the car brand new and have put on about 11,500 miles.

Sometimes when I try to start the car and turn the key to on all my accessories turn on without issue and I get the Subaru chimes but when I turn the key to crank the engine I get absolutely no response. I usually cycle the key on and off and press and depress the clutch pedal multiple times until it actually responds and starts cranking. When it does crank, the engine starts without issue. This doesnít happen every time I try to start it but it happens randomly. As I recall itís happened from time to time ever since Iíve had it but itís happening a little more frequently over the past few months. Itís happened through several tunes and even the stock calibration if I remember right.

Iíve observed that this happens most frequently after leaving it in gear when I park and has never happened from a completely cold start. For example itís most likely to occur if I park at a grocery store, run in to get something quickly, and come back to turn the car on.

Has anyone else experienced this?
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Old 12-24-2019, 04:26 PM   #2
Cougar4
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Power isn't getting to the ignition switch like it should, at least in the START position. Since some accessories are turned off in the START mode the trouble could also be just within the START circuit. First thing you should do is clean the battery connections. You may have to reset some memory things after you disconnect the battery and reconnect it. Checking for power to the dash fuses while in the START mode may help determining that the trouble is within the starter circuit though some fuse will not have power to them when in the START position. If the trouble is in the starter circuit then you will need to check for a problem with the safety switches used for the starter.
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Old 01-14-2020, 11:28 PM   #3
Cesar_h07
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So it turns out itís because I wasnít pushing the clutch pedal ALL the way to the floor, like pushing until the floor stops you. Itís weird because it doesnít always need to be all the way to the floor, just pushed in as far as my short legs allowed. It kinda makes sense that it happened more often when I left it in gear.
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Old 02-16-2020, 11:11 PM   #4
Zirkhan
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2018 Impreza Hatch
Magnetite Gray Metallic

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My 2018 Impreza is doing the same thing but it just randomly stopped starting and I can't get it to crank even with the clutch pressed all the way to the floor. It has a new battery and the battery is working. Only has 20k on it so I don't see how it could be the starter. I had my wife turn it over while I listened under the hood and the only noise I heard came from somewhere around the throttle body.
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Old 02-17-2020, 02:58 PM   #5
Mulder
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15 WRX/05 GTO

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Well it could be the starter, however unlikely on a 2018. But in order to narrow it down you need to do the proper troubleshooting before throwing parts at it.
The clutch switch could be the problem, it can be tested with a meter to see if it's closing when the pedal is fully depressed. It can also be temporarily bypassed with a wire or cliplead across the terminals, if the car then starts you have a switch that is either bad or misadjusted. Make sure you are testing the right switch, there is more than one at the clutch.
You can also connect a voltmeter or test light directly to the starter terminal and ground to see if power is getting to it when trying to crank. If you see full voltage there and have a no-crank condition then you may have a bad starter. In this case try giving it a tap with a small hammer or long bar before giving up on it, sometimes that does the trick.
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Old 02-18-2020, 09:48 PM   #6
Zirkhan
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I just ended up sending it to the dealer. It's still under warranty and I don't have time to investigate. I'll post their findings in case there's future issues and people check this thread.
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Old 02-21-2020, 06:41 PM   #7
Cougar4
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My guess is you have something going on with the safety switch.
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Old Yesterday, 09:40 PM   #8
Zirkhan
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Magnetite Gray Metallic

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Fixed. All the guy at the dealer said was "it was a signal wire to the starter that was disconnected" I've never had anything loosen itself like that... nonsense lol
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