Car will not start after tuning

SonicVQ · 05-11-2021, 06:04 PM

Quote:

Originally Posted by ShadowJester6

I don't know if I mentioned it before, but I've done that test as well.

Crap!! I was hoping for better news.

The next step is to view what the BCM "sees" for the clutch pedal position.
Luckily, this doesn't require a Consult III+, but just a a cheap OBD scanner ($20), OBD Fusion ($7-14) and their $14 OEM Diagnostic add on.

With this app, you can connect to the BCM and view the clutch pedal switch status. You have checked the switches, BUT that doesn't mean the BCM sees the required criteria to crank/start the engine.

Here is a screen shot from my G37 Sport (6 speed manual) with the clutch pedal on the floor and fully released.

Any interest in pursuing this?

ShadowJester6 · 05-11-2021, 08:24 PM

Quote:

Originally Posted by SonicVQ

Crap!! I was hoping for better news.

The next step is to view what the BCM "sees" for the clutch pedal position.
Luckily, this doesn't require a Consult III+, but just a a cheap OBD scanner ($20), OBD Fusion ($7-14) and their $14 OEM Diagnostic add on.

With this app, you can connect to the BCM and view the clutch pedal switch status. You have checked the switches, BUT that doesn't mean the BCM sees the required criteria to crank/start the engine.

Here is a screen shot from my G37 Sport (6 speed manual) with the clutch pedal on the floor and fully released.

Any interest in pursuing this?

I need to check my setup up to see about the cruise control, but I have done that test with the clutch interlock. Using a laptop and the tuning software, I can watch the clutch switch being toggled in real time. So as far as the clutch interlock is concerned, the ECU and BCM both see that the switch is working as intended, which is part of my previous thoughts about the DTC being thrown actually being a generic error.

I'll report back when I check out the cruise control switch through OBD. I don't know if the app I'm using or the tuning software I have tracks that. If not, I'll look into the app that you have.

ShadowJester6 · 05-12-2021, 09:49 PM

Well, car is still an expensive but useless hunk of metal and plastic.

Verified that the both clutch switches (interlock and cruise control) toggle as expected through tuning software.

Also verified that the U1000 and B26E8 codes keep returning after resetting ECU while I was in there.

I tried different variations of unplugging the cruise control switch and jumping the clutch interlock. No change as expected.

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05-12-2021, 09:49 PM	#3 (permalink)
ShadowJester6 Base Member Join Date: Dec 2015 Location: Oregon Posts: 23 Drives: '13 370z NISMO - MT Rep Power: 11	Well, car is still an expensive but useless hunk of metal and plastic. Verified that the both clutch switches (interlock and cruise control) toggle as expected through tuning software. Also verified that the U1000 and B26E8 codes keep returning after resetting ECU while I was in there. I tried different variations of unplugging the cruise control switch and jumping the clutch interlock. No change as expected.