"Service ASR" & 'Service ABS" lights - Page 2 - ZR-1 Net Registry Forums

Hib Halverson · 12-19-2013

If the Service ASR and ABS lights are coming on, codes are stored in the EBTCM.

Your scanner will not read them so you need to look at this article to see how to get them.

"Pull" the codes and report back.

92whiteZ · 12-22-2013

Thanks everyone.

Hib - will read your article and report back.

its strange to me that it is only under hard braking where the body pitches forward. still think i have air stuck somewhere in the system. the MC is full and clear.

Hib Halverson · 12-25-2013

My gut feeling is what's turning those lights on is unrelated to brake hydraulics.

I'd get the codes then diagnose per the Service Manual.

I'm going to guess there's a wires/connections problem somewhere.

92whiteZ · 01-02-2014

Ok. Finally got back and looked at the trouble codes. 77 ignition cycles ago it threw a code 71. 2 ignition cycles ago it threw a code 83.

71 is an internal malfunction of the EBTCM
83 is low brake fluid.

My m/c is 1/2 way full. Will top it off. The code 71 is obviously much more of a concern. I will say the lights only come on during heavy braking or acceleration as I believe the body movement uncovers the fluid sensor in the m/c. Hopefully topping off the m/c will take care of it. ..

Cleared all the codes. I am using a Tech 1a for reading them. How did I ever survive without one!? Definitely a "must have" item for diagnosis.

Any additional advice/thoughts?

92whiteZ · 01-02-2014

Oh and I did put dielectric grease in the spark plug boots just to check that off the list too.

92whiteZ · 01-03-2014

Looks to have been just slightly low fluid. Topped it off and put some miles on it. No lights. All appears to be well. Thx for all the advice everyone.

12-19-2013	#11
Hib Halverson Join Date: Jun 2005 Location: CenCoast California Posts: 899	Re: "Service ASR" & 'Service ABS" lights If the Service ASR and ABS lights are coming on, codes are stored in the EBTCM. Your scanner will not read them so you need to look at this article to see how to get them. "Pull" the codes and report back. __________________ Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878

12-22-2013	#12
92whiteZ Join Date: Sep 2013 Location: Los Angeles, CA Posts: 122	Re: "Service ASR" & 'Service ABS" lights Thanks everyone. Hib - will read your article and report back. its strange to me that it is only under hard braking where the body pitches forward. still think i have air stuck somewhere in the system. the MC is full and clear.

12-25-2013	#13
Hib Halverson Join Date: Jun 2005 Location: CenCoast California Posts: 899	Re: "Service ASR" & 'Service ABS" lights My gut feeling is what's turning those lights on is unrelated to brake hydraulics. I'd get the codes then diagnose per the Service Manual. I'm going to guess there's a wires/connections problem somewhere.

01-02-2014	#14
92whiteZ Join Date: Sep 2013 Location: Los Angeles, CA Posts: 122	Re: "Service ASR" & 'Service ABS" lights Ok. Finally got back and looked at the trouble codes. 77 ignition cycles ago it threw a code 71. 2 ignition cycles ago it threw a code 83. 71 is an internal malfunction of the EBTCM 83 is low brake fluid. My m/c is 1/2 way full. Will top it off. The code 71 is obviously much more of a concern. I will say the lights only come on during heavy braking or acceleration as I believe the body movement uncovers the fluid sensor in the m/c. Hopefully topping off the m/c will take care of it. .. Cleared all the codes. I am using a Tech 1a for reading them. How did I ever survive without one!? Definitely a "must have" item for diagnosis. Any additional advice/thoughts?

01-02-2014	#15
92whiteZ Join Date: Sep 2013 Location: Los Angeles, CA Posts: 122	Re: "Service ASR" & 'Service ABS" lights Oh and I did put dielectric grease in the spark plug boots just to check that off the list too.

01-03-2014	#16
92whiteZ Join Date: Sep 2013 Location: Los Angeles, CA Posts: 122	Re: "Service ASR" & 'Service ABS" lights Looks to have been just slightly low fluid. Topped it off and put some miles on it. No lights. All appears to be well. Thx for all the advice everyone.