Need help trouble shooting LTPWS light - ZR-1 Net Registry Forums

QB93Z · 02-23-2009

I need help trouble shooting a LTPWS light. I started getting the Service LTPWS light on the Driver Information Center after I swapped the rear tires and tire pressure sensors to a new set of rear wheels. So, I suspect that one or both sensors was damaged during the swap.

This is for a 1993 ZR-1.

When ever I start the car, the LTPWS light is not on. After I drive about 3-4 miles, Service LTPWS lights up, and stays on.

I want to figure out which rear wheel has the bad sensor, but I can't get a code number.

I have tried to get a a code number using a Tech 1, but it reports no DTC even though the Service LTPWS light is on.

I have also used a scan tool (DataMaster), but it reports no codes as well.

Is there something special about the way the LTPWS faults are reported? The FSM says to read the codes to tell which wheel sensor is bad, but it isn't working for me.

Any ideas?
Thanks,
Jim

02-23-2009

Possible dead receiver.

QB93Z · 02-23-2009

While this has been going on, I got a real Low Tire Pressure signal from a front tire. Is there one receiver for each wheel or one receiver for the car?

White Bullet · 02-23-2009

Quote:

Originally Posted by QB93Z

While this has been going on, I got a real Low Tire Pressure signal from a front tire. Is there one receiver for each wheel or one receiver for the car?

I believe that there is only one receiver.

GOLDCYLON · 02-23-2009

One receiver per car or LTPWS module. 4 transmittors one per wheel. Just a guess but did they but the bands back on the right wheels or cross the pair?

GrayZ · 02-23-2009

Jim, do yourself a favor and take those puppies off and put em in a
pickle jar, as a conversation piece.

Heck, even i can tell if i got a flat tire.

02-23-2009	#1
QB93Z Join Date: May 2007 Location: Westminster, Maryland Posts: 3,689	Need help trouble shooting LTPWS light I need help trouble shooting a LTPWS light. I started getting the Service LTPWS light on the Driver Information Center after I swapped the rear tires and tire pressure sensors to a new set of rear wheels. So, I suspect that one or both sensors was damaged during the swap. This is for a 1993 ZR-1. When ever I start the car, the LTPWS light is not on. After I drive about 3-4 miles, Service LTPWS lights up, and stays on. I want to figure out which rear wheel has the bad sensor, but I can't get a code number. I have tried to get a a code number using a Tech 1, but it reports no DTC even though the Service LTPWS light is on. I have also used a scan tool (DataMaster), but it reports no codes as well. Is there something special about the way the LTPWS faults are reported? The FSM says to read the codes to tell which wheel sensor is bad, but it isn't working for me. Any ideas? Thanks, Jim __________________ If it isn't fun, you aren't doing it right! 1990 Black ZR-1 - sold 1993 Quasar Blue ZR-1 1994 Competition Yellow ZR-1 1995 Dark Purple ZR-1 Maryland State Coordinator WAZOO Member

02-23-2009	#2
Jeffvette Guest Posts: n/a	Re: Need help trouble shooting LTPWS light Possible dead receiver.

02-23-2009	#3
QB93Z Join Date: May 2007 Location: Westminster, Maryland Posts: 3,689	Re: Need help trouble shooting LTPWS light While this has been going on, I got a real Low Tire Pressure signal from a front tire. Is there one receiver for each wheel or one receiver for the car? __________________ If it isn't fun, you aren't doing it right! 1990 Black ZR-1 - sold 1993 Quasar Blue ZR-1 1994 Competition Yellow ZR-1 1995 Dark Purple ZR-1 Maryland State Coordinator WAZOO Member

02-23-2009	#5
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: Need help trouble shooting LTPWS light One receiver per car or LTPWS module. 4 transmittors one per wheel. Just a guess but did they but the bands back on the right wheels or cross the pair? __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

02-23-2009	#6
GrayZ Join Date: Mar 2006 Location: Innsbrook, Missouri Posts: 1,727	Re: Need help trouble shooting LTPWS light Jim, do yourself a favor and take those puppies off and put em in a pickle jar, as a conversation piece. Heck, even i can tell if i got a flat tire.