Service vehicle light??? car acting strange
05-04-2011, 09:43 AM
#1
Service vehicle light??? car acting strange ok, my car 2001 ws6 sat all winter we redid the whole stereo system and all done professionally. Battery died a few times from sitting over the winter.
problem,
car now is acting weird, the ABS INOP light goes on and the pedal has like a pop to it
also the TCS switch is flikering then turns it self on (i have the SLP TCS REverse module) and the car develops a bad stumble when trying to accelerate...now this seems to come and go.
Tried scanning at Autozone and the scanner shows nothing cus there are no SES lights just a Service Vehicle light
and the headlights flip up now everytime i hit the key fob, (i need to replace a headlight motor) but this was going on before the above issues
i checked the grounds to the battery, found one a little loose tightened it and still no change, load tested the battery and it shows a little weak but not bad and the alt shows as charging fine with the load tester
any thoughts???? what sets off the Service Vehicle light and how do i scan it?
problem,
car now is acting weird, the ABS INOP light goes on and the pedal has like a pop to it
also the TCS switch is flikering then turns it self on (i have the SLP TCS REverse module) and the car develops a bad stumble when trying to accelerate...now this seems to come and go.
Tried scanning at Autozone and the scanner shows nothing cus there are no SES lights just a Service Vehicle light
and the headlights flip up now everytime i hit the key fob, (i need to replace a headlight motor) but this was going on before the above issues
i checked the grounds to the battery, found one a little loose tightened it and still no change, load tested the battery and it shows a little weak but not bad and the alt shows as charging fine with the load tester
any thoughts???? what sets off the Service Vehicle light and how do i scan it?
Last edited by thechef; 05-04-2011 at 09:48 AM.
05-04-2011, 12:08 PM
#2
Batteries are easy to replace and probably necessary at this point. I've chased many a problem like you're having and it all came down to the battery. Replace that first, then you can further trace down the culprit if it's still around.
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2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
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2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
05-04-2011, 12:28 PM
#3
TECH Fanatic
If its not the battery it sounds like your BCM is freaking out. I would remove the TCS reverse just until you get everything sorted out. Aftermarket stuff always makes diagnostics harder. Oh, and you can get the code scanned by autozone, just don't buy any parts till you have the circuit actually checked out. (i.e. if you have a MAF code don't just buy a MAF until its diagnosed as bad).
05-04-2011, 01:16 PM
#4
If its not the battery it sounds like your BCM is freaking out. I would remove the TCS reverse just until you get everything sorted out. Aftermarket stuff always makes diagnostics harder. Oh, and you can get the code scanned by autozone, just don't buy any parts till you have the circuit actually checked out. (i.e. if you have a MAF code don't just buy a MAF until its diagnosed as bad).
I was thinking of just doing the battery anyways and going from there
how do i reset the BCM?
