How to clear FX3 codes? - ZR-1 Net Registry Forums

BlackbirdZ07 · 05-14-2012

I just did a search and couldn't find the details I need... Service Ride Control light in my '90 is on, and when I pulled the codes I found that ALL the codes were set. I think I may have caused that by connecting an almost discharged battery. I'd like to clear the codes and start over.

The FSM only says to ground pin C of the ALDL for two seconds and repeat twice, for a total of three groundings. I've tried doing that many times but no luck... can someone tell me exactly how to do it? I tried turning the key on with the ground in place, leaving it for two seconds, removing it, etc. so it was grounded three times. I've tried waiting for two seconds after code 12 starts flashing. I've tried turning the key on and off three times. I've tried turning the key on and then grounding it, etc.

I also tried disconnecting the battery overnight and driving the car, and nothing has cleared the codes.

GOLDCYLON · 05-14-2012

http://www.zr1netregistry.com/sixsteps.htm

Yep thats right in the FSM as stated. Do you have a Autoxray or a scanner normally those can clear out the codes as well

scottfab · 05-14-2012

Quote:

Originally Posted by BlackbirdZ07

The FSM only says to ground pin C of the ALDL for two seconds and repeat twice, for a total of three groundings. I've tried doing that many times but no luck... can someone tell me exactly how to do it?

I have done this and it works.
1. with pin C shorted to ground turn the key on ..... at this point the codes start flashing the DIC light
2. as the codes start flashing remove the short for 2 sec (I just count one, two)
3. then quickly short the pin again for 1 sec
4. then remove the short again for 2 sec
5. now short for 1 sec again
6. now remove short again for 2 sec
7. and finally short for 15 sec

The codes should clear. With some practice you can do the above without thinking. I created a push button switch for myself to do this. It is important in step 2 to remove the short AS the codes are flashing.
Good luck.

BlackbirdZ07 · 05-14-2012

Quote:

Originally Posted by scottfab

I have done this and it works.
1. with pin C shorted to ground turn the key on ..... at this point the codes start flashing the DIC light
2. as the codes start flashing remove the short for 2 sec (I just count one, two)
3. then quickly short the pin again for 1 sec
4. then remove the short again for 2 sec
5. now short for 1 sec again
6. now remove short again for 2 sec
7. and finally short for 15 sec

The codes should clear. With some practice you can do the above without thinking. I created a push button switch for myself to do this. It is important in step 2 to remove the short AS the codes are flashing.
Good luck.

Thanks... that should do it. I'll try it tonight. I do have an AutoXray, haven't used it in a long time but if this doesn't work I'll break it out and see if it'll clear the codes.

Tyler Townsley · 05-14-2012

If they reset you will have to have Bilsteen rebuild them to keep from getting the codes unless you have broken the motor gear on top of the shock.$$$$$

Tyker

scottfab · 05-15-2012

Quote:

Originally Posted by Tyler Townsley

If they reset you will have to have Bilsteen rebuild them to keep from getting the codes unless you have broken the motor gear on top of the shock.$$$$$

Tyker

The gear on top of the shock can be rebuilt cheaply and stronger than stock.
http://www.zr1netregistry.com/Old_Proj/old_proj4.htm

BlackbirdZ07 · 05-15-2012

Well, I got the codes cleared. I don't know exactly what worked, but I kept doing different things (including the procedure above) and I finally figured out that I had cleared all the codes except one: code 14, which is the right front. I think the codes were cleared but then 14 reset every time I turned the ignition on.

So I removed the actuator... shock gear and actuator looked fine, but actuator did not move when I turned the key on. Bad actuator?? To test that, I removed the actuator, disconnected the left front actuator and plugged the suspect actuator into the left front connector. Low and behold, it moved when I turned on the key... so the actuator is NOT bad. It's not getting power for some reason. Any ideas?

05-14-2012	#1
BlackbirdZ07 Join Date: Feb 2012 Location: Albuquerque, NM Posts: 34	How to clear FX3 codes? I just did a search and couldn't find the details I need... Service Ride Control light in my '90 is on, and when I pulled the codes I found that ALL the codes were set. I think I may have caused that by connecting an almost discharged battery. I'd like to clear the codes and start over. The FSM only says to ground pin C of the ALDL for two seconds and repeat twice, for a total of three groundings. I've tried doing that many times but no luck... can someone tell me exactly how to do it? I tried turning the key on with the ground in place, leaving it for two seconds, removing it, etc. so it was grounded three times. I've tried waiting for two seconds after code 12 starts flashing. I've tried turning the key on and off three times. I've tried turning the key on and then grounding it, etc. I also tried disconnecting the battery overnight and driving the car, and nothing has cleared the codes.

05-14-2012	#2
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: How to clear FX3 codes? http://www.zr1netregistry.com/sixsteps.htm Yep thats right in the FSM as stated. Do you have a Autoxray or a scanner normally those can clear out the codes as well __________________ 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 Last edited by GOLDCYLON; 05-14-2012 at 04:47 AM.

05-14-2012	#5
Tyler Townsley Join Date: May 2005 Location: Nichols, FL Posts: 615	Re: How to clear FX3 codes? If they reset you will have to have Bilsteen rebuild them to keep from getting the codes unless you have broken the motor gear on top of the shock.$$$$$ Tyker __________________ 55 Polo White (Project) 61 Jewel Blue (Sold to buy above) 66 Nassau Blue 68 Torch Red 88 ZR1 Blue 90 ZR1 White

05-15-2012	#7
BlackbirdZ07 Join Date: Feb 2012 Location: Albuquerque, NM Posts: 34	Re: How to clear FX3 codes? Well, I got the codes cleared. I don't know exactly what worked, but I kept doing different things (including the procedure above) and I finally figured out that I had cleared all the codes except one: code 14, which is the right front. I think the codes were cleared but then 14 reset every time I turned the ignition on. So I removed the actuator... shock gear and actuator looked fine, but actuator did not move when I turned the key on. Bad actuator?? To test that, I removed the actuator, disconnected the left front actuator and plugged the suspect actuator into the left front connector. Low and behold, it moved when I turned on the key... so the actuator is NOT bad. It's not getting power for some reason. Any ideas?