Service Ride Control codes - ZR-1 Net Registry Forums

4CamJon · 06-02-2015

When I started my car this morning the SRC stayed on and didn't go out. I put about 70 miles on the car with multiple stops and keys cycles and it still didn't go off. One of my mechanics at work has a GM TechII scanner so we checked the codes and it give a 13 and 14 code the first time and then we cleared it and it came back on with a 13 code the second time. The car is a 91 with 47,000 miles on it and I have had no issues until now. I don't have a FSM so I am looking for a few answers on the codes and a couple of suggestions or pointers on what to do next. Thanks in advance for any help you can give.

Jon

RussMcB · 06-03-2015

Those codes point towards the shock actuators (see below). They are successfully passing their startup tests.

The easy things to check:

I'd take the actuators off the top of the shock and check two things: 1) see if you can turn the top shock rod by hand (or with pliers very gently) to see if it takes a lot of effort to rotate them. 2) See how far the gear is sticking up above the outer ring's teeth. IIRC it should be about a 1/4" (but you should confirm).

Last week when I was working on mine I Googled and found an informative article written by Hib: http://www.corvetteactioncenter.com/tech/c4/fx3/

Good luck.

12 = Start of sequence
13 = Left rear time out
14 = Right Front time out
21 = Left Front time out
22 = Right Rear time out
31 = Left Front out of position
32 = Right Front out of position
33 = Left Rear out of position
34 = Right Rear out of position

06-02-2015	#1
4CamJon Join Date: May 2014 Location: Plymouth, MN Posts: 62	Service Ride Control codes When I started my car this morning the SRC stayed on and didn't go out. I put about 70 miles on the car with multiple stops and keys cycles and it still didn't go off. One of my mechanics at work has a GM TechII scanner so we checked the codes and it give a 13 and 14 code the first time and then we cleared it and it came back on with a 13 code the second time. The car is a 91 with 47,000 miles on it and I have had no issues until now. I don't have a FSM so I am looking for a few answers on the codes and a couple of suggestions or pointers on what to do next. Thanks in advance for any help you can give. Jon

06-03-2015	#2
RussMcB Join Date: Jan 2015 Location: Marietta, GA USA Posts: 1,160	Re: Service Ride Control codes Those codes point towards the shock actuators (see below). They are successfully passing their startup tests. The easy things to check: I'd take the actuators off the top of the shock and check two things: 1) see if you can turn the top shock rod by hand (or with pliers very gently) to see if it takes a lot of effort to rotate them. 2) See how far the gear is sticking up above the outer ring's teeth. IIRC it should be about a 1/4" (but you should confirm). Last week when I was working on mine I Googled and found an informative article written by Hib: http://www.corvetteactioncenter.com/tech/c4/fx3/ Good luck. 12 = Start of sequence 13 = Left rear time out 14 = Right Front time out 21 = Left Front time out 22 = Right Rear time out 31 = Left Front out of position 32 = Right Front out of position 33 = Left Rear out of position 34 = Right Rear out of position __________________ Russ McBride, [COLOR="Red"]Car Sold 8/2020[/COLOR] #1635, Marietta, GA USA, 1991 ZR-1, #766 (bought 1/1/2015) MS3-Pro, OBX, SW X-Pipe, Borla, Hurst, SLP, Goodyear F1 GS-D3, Kenwood. HOTB 2016Q3 [IMG]http://zr1.net/forum/picture.php?albumid=316&pictureid=2873[/IMG] [IMG]http://zr1.net/forum/picture.php?albumid=336&pictureid=2985[/IMG]