Has anyone ever had this sensor fail?   I was playing around with an SSM2 tool and after running a diagnostic on my brake system, it returned this message:

 

42 - G sensor high friction detected

 

The only reference I can find for this code on NASIOC is the "How to read brake codes" thread, but it doesn't go into any more detail than how to pull and decode the codes.  Is this one of those codes that will show up when the car is turned off but goes away when you are driving?

Anybody replace their G-sensor before?

If you rub the belly of the car just right you might find the G-sensor 

Now that's a reach, 987687.  (But very funny!!!) 

High friction detected?

Maybe it got some dust in it somehow?

 

Is the ABS light on? Might just be a code that pops up when certain tests are performed?

No ABS lamp.  Heck, I don't even know where the G-sensor mounts on a GD or what it looks like.  Guess I'll have to ask at the dealer...

There's a Yaw/roll sensor under the center console IIRC. That may be what this code refers to, but I'm not positive of that.

If the lamp works, but isn't normally lit, and the ABS system works normally, I wouldn't worry about it.

@GeneralDisorder You ever run into this before?

just doing a general search, there's more info on it as a definition for an idle switch or TPS-related code if it is a '42' blink-code.

 

here's a FSM page about it; https://legacygt.com/forums/showthread.php/check-engine-code-42-217170.html

but, if OBDII - P0042 is an oxigen sensor heater circuit.

 

what car?

Edited April 22, 20196 yr by 1 Lucky Texan

This code was pulled using a SSM2 in the "Brake" diagnostics.  This isn't an engine related code, this came straight from the ABS computer.

ah,  that definition seems to be voltage-related in some posts - maybe check connections and ground wires?

found this;

 

 

and https://www.subaruoutback.org/forums/66-problems-maintenance/29113-abs-code-42-a.html

I don't get a lamp for this code, but noticed a code for the brake system last time I had the SSM2 hooked up, pulled the code and it was "42 - G sensor high friction detected."

Did a quick read of those threads.  I'll look for a rusty relay, but I'm not missing a tone ring and the code "42" appears to have been given a different function in the 2002 WRX compared to the threads you linked to, which mention "low voltage" as pertaining to code 42.

I have never had that come up on any car I've scanned. Very strange. 

GD

Its the G sensor under the center console in the center of the car. It measures the acceleration/deceleration of the car. Its reading high, you did something to scare all the G's out of it.

^^^ what he said

 

 

 

There may be some kind of calibration required if the unit is replaced - maybe the FSM has info on that?

I'll have to look into the FSM, I don't think the module has ever been replaced, we've owned the car since new.  We did have the ABS reflashed with the updated code all those years ago, which I'm regretting now, noticing how even the slightest lockup will send the ABS system into convulsions...

So this has absolutly nothing to do with the telephone shaped dent in the front of the car

1 hour ago, 1 Lucky Texan said:

^^^ what he said

 

 

 

There may be some kind of calibration required if the unit is replaced - maybe the FSM has info on that?

I cant get a straight answer on that. But the first step would be to unplug it then replug it in and see if thats enough action to clean the contacts.

1 hour ago, nipper said:

So this has absolutly nothing to do with the telephone shaped dent in the front of the car

Car's too loud, they'd hear me coming.