TPMS not activated @ PDI? Anyone?

Da.Menace · 10-19-2011, 03:30 AM

Found out today that my TPMS sensors weren't activated.. It was linked with the BCM, but its not reading anything at all (Reads 0 psi).

This is what happened today.

One of my tires was running a little bit flat, so I went ahead to check the tire, and it was under pressure (24-25psi). Then, it surprised me that even at 24-25psi, the TPMS did not trigger any kind of warning, so I got a friend to check on it. Turns out that all of my TPMS sensors was inactive.

I know that no one would purposely check if the TPMS was working or not when they first got the car, but since it happened to me, it could have happened to you too!

Just a heads up

6MT · 10-19-2011, 08:48 AM

Was your TPMS warning light on?

Da.Menace · 10-19-2011, 04:34 PM

Quote:

Originally Posted by 6MT

Was your TPMS warning light on?

at 24-25psi, no.

6MT · 10-19-2011, 04:57 PM

Quote:

Originally Posted by Da.Menace

at 24-25psi, no.

Well 24-25psi is not the normal +/- 5psi that the OEM sensor is set for. So at the required pressure (+/-5 psi), is the light on?

Da.Menace · 10-19-2011, 06:00 PM

Quote:

Originally Posted by 6MT

Well 24-25psi is not the normal +/- 5psi that the OEM sensor is set for. So at the required pressure (+/-5 psi), is the light on?

nope.

Light was not on when the tires were 35psi.
Light was not on when the tires were 24-25psi.

That's why I thought the TPMS was not working/activated.

Pharmacist · 10-19-2011, 08:58 PM

i thought they are activated from the factory? How do you know they read 0 psi? There's no display for tire pressure.

6MT · 10-19-2011, 09:45 PM

TPMS sensors always transmit their signals (unless they're defective). They need to be initialized/married to the ECU. That's what I suspect is the issue for the op.

Da.Menace · 10-20-2011, 01:26 AM

Quote:

Originally Posted by Pharmacist

i thought they are activated from the factory? How do you know they read 0 psi? There's no display for tire pressure.

Checked with those TPMS tools (Such as Autel TS401, and other one, but forgot name), and also Nissan Consult III

Quote:

Originally Posted by 6MT

TPMS sensors always transmit their signals (unless they're defective). They need to be initialized/married to the ECU. That's what I suspect is the issue for the op.

Well they are married to the BCM (Body Control Module). The tools listed all 4 of their IDs, but isnt getting any readings from them.

Anyways, it was weird enough for the sensors not to trigger an error when the tire pressure was 24-25psi.

10-19-2011, 03:30 AM	#1 (permalink)
Da.Menace Track Member Join Date: Apr 2010 Location: Canada Posts: 698 Drives: people crazy Rep Power: 16	TPMS not activated @ PDI? Anyone? Found out today that my TPMS sensors weren't activated.. It was linked with the BCM, but its not reading anything at all (Reads 0 psi). This is what happened today. One of my tires was running a little bit flat, so I went ahead to check the tire, and it was under pressure (24-25psi). Then, it surprised me that even at 24-25psi, the TPMS did not trigger any kind of warning, so I got a friend to check on it. Turns out that all of my TPMS sensors was inactive. I know that no one would purposely check if the TPMS was working or not when they first got the car, but since it happened to me, it could have happened to you too! Just a heads up __________________ Brembo :: H&R :: KW :: SPC :: Stillen

10-19-2011, 08:48 AM	#2 (permalink)
6MT A True Z Fanatic Join Date: May 2009 Location: ITU Zone 2 Posts: 22,459 Drives: Reliant Robin Rep Power: 1789	Was your TPMS warning light on? __________________ Andrew 2009 370Z Sport/Touring 6MT sold 2013 Honda Civic Si coupe D/D

10-19-2011, 08:58 PM	#6 (permalink)
Pharmacist A True Z Fanatic Join Date: May 2009 Location: Toronto, Ontario Posts: 1,249 Drives: 09 370z Sport 6MT Rep Power: 17	i thought they are activated from the factory? How do you know they read 0 psi? There's no display for tire pressure. __________________ 2009 370z Sport Touring/Nismo shift Knob/Z1 motorsports 34 row oil cooler

10-19-2011, 09:45 PM	#7 (permalink)
6MT A True Z Fanatic Join Date: May 2009 Location: ITU Zone 2 Posts: 22,459 Drives: Reliant Robin Rep Power: 1789	TPMS sensors always transmit their signals (unless they're defective). They need to be initialized/married to the ECU. That's what I suspect is the issue for the op. __________________ Andrew 2009 370Z Sport/Touring 6MT sold 2013 Honda Civic Si coupe D/D

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