C5 Neutral Position Sensor/Wire (Manual Trans)
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Instructor
Joined: Jun 2013
Posts: 128
Likes: 16
From: Pinellas Park FL
C5 Neutral Position Sensor/Wire (Manual Trans)
I am researching on how the C5 Manual Trans detects when it's in Neutral.
I've been talking with the creators of Auto-Blip and looking to change the way that it detects when to activate. Currently it detects when the brakes is pressed and also when the clutch is pressed in.
After speaking to them, I may be able to change the what it looks for when it activates the auto-blip and that's what the car detects neutral.
But I have failed to find the circuit on where that is located.
Does anyone know where the Neutral Position Sensor wire is located or how the circuit works for the sensor?
I've been talking with the creators of Auto-Blip and looking to change the way that it detects when to activate. Currently it detects when the brakes is pressed and also when the clutch is pressed in.
After speaking to them, I may be able to change the what it looks for when it activates the auto-blip and that's what the car detects neutral.
But I have failed to find the circuit on where that is located.
Does anyone know where the Neutral Position Sensor wire is located or how the circuit works for the sensor?
Drifting
Joined: Mar 2013
Posts: 1,496
Likes: 353
From: Little Rock Arkansas
Yeah I believe it does not. The only switch would be the reverse switch, which if memory serves me correct there is a lockout that is speed controlled via pins to keep the car from inadvertently going from fifth to reverse at speed (it's not a full physical lockout).
The function of the "neutral switch" in effect is in the clutch pedal itself, albeit it's a different function on the C5. Located there is a clutch pedal position sensor. That sensor primarily deals with the electronic cruise control function to detect neutral (and was subject of some subsequent C6 recalls in particular which carried ill-adjusted sensors).
The clutch pedal position sensor sends a signal to the PCM. The other PCM item the CAGS feature (the skip-shift from 1st to 4th) while PCM controlled is not transmission controlled. CAGS utilizes the acceleration values stored in the PCM relative to the actual driving speed of the car to determine when to apply the CAGS solenoid to prevent 2nd and 3rd gear selections. Otherwise I can't surmise there wouldn't be a real logical way for CAGS to work as it's supposed to activate based on perceived driving condition of the car. The only physical part would be the shift solenoid itself.
There are no other electrical functions I can think of other than the aforementioned items; it's all mechanical. I think what you're trying to do is not possible with a Borg-Warner/Tremec T-56 nor any of it's later variants and if anything a properly developed heel-and-toe technique would be better anyways and is not difficult to do as the relatively low rev window for shift points is easy to maintain.
The function of the "neutral switch" in effect is in the clutch pedal itself, albeit it's a different function on the C5. Located there is a clutch pedal position sensor. That sensor primarily deals with the electronic cruise control function to detect neutral (and was subject of some subsequent C6 recalls in particular which carried ill-adjusted sensors).
The clutch pedal position sensor sends a signal to the PCM. The other PCM item the CAGS feature (the skip-shift from 1st to 4th) while PCM controlled is not transmission controlled. CAGS utilizes the acceleration values stored in the PCM relative to the actual driving speed of the car to determine when to apply the CAGS solenoid to prevent 2nd and 3rd gear selections. Otherwise I can't surmise there wouldn't be a real logical way for CAGS to work as it's supposed to activate based on perceived driving condition of the car. The only physical part would be the shift solenoid itself.
There are no other electrical functions I can think of other than the aforementioned items; it's all mechanical. I think what you're trying to do is not possible with a Borg-Warner/Tremec T-56 nor any of it's later variants and if anything a properly developed heel-and-toe technique would be better anyways and is not difficult to do as the relatively low rev window for shift points is easy to maintain.
