Continued ABS/Stability Control Woes
#22
#23
#25
Nick,
Not sure if you had done a reseat of the front sensors, but that often produces a temporary fix. Made permanent (sometimes) by taking some stress off of the wiring/connectors for those sensors.
The solder joints in the module, front sensor connectivity, the battery ... these probably account for 80+ percent of the faults.
It's good to have codes of course, but if you get one pointing to a front sensor, it's more likely to be the wiring/connector than the sensor itself.
Not sure if you had done a reseat of the front sensors, but that often produces a temporary fix. Made permanent (sometimes) by taking some stress off of the wiring/connectors for those sensors.
The solder joints in the module, front sensor connectivity, the battery ... these probably account for 80+ percent of the faults.
It's good to have codes of course, but if you get one pointing to a front sensor, it's more likely to be the wiring/connector than the sensor itself.
Last edited by Dennis07; 12-21-2014 at 07:45 PM. Reason: clarity
#26
#27
Hey guys
Dennis, I have re-seated the sensors and put slack into the wiring. It helped for maybe half a day, then it started up again.
Funny thing is that this all started a couple of months ago after the wire to the left front sensor broke off in my hand when I went to clean the sensor. I cleaned up the end of the wire, added a new electrical connector and thought I was done with it.
Also, since the most recent re-solder (one week ago), she'll be fine for 4-5 start cycles and then the lights come on while sitting still. They are always coming on while sitting still.
Knowing which 2 pins, wolfpck1, would be valuable info
Nick
Dennis, I have re-seated the sensors and put slack into the wiring. It helped for maybe half a day, then it started up again.
Funny thing is that this all started a couple of months ago after the wire to the left front sensor broke off in my hand when I went to clean the sensor. I cleaned up the end of the wire, added a new electrical connector and thought I was done with it.
Also, since the most recent re-solder (one week ago), she'll be fine for 4-5 start cycles and then the lights come on while sitting still. They are always coming on while sitting still.
Knowing which 2 pins, wolfpck1, would be valuable info
Nick
#28
Nick,
A stubborn one, this.
Suggestion: start the car and see if you can induce a fault by wiggling the wiring leading to that left front sensor.
Also --- 'scuse me if this has been covered -- do we know what kind of shape your battery is in? I'm thinking this may be in play because when the car is stopped ... that's when voltage tends to be lowest. Marginal batteries do trigger these kinds of faults.
A stubborn one, this.
Suggestion: start the car and see if you can induce a fault by wiggling the wiring leading to that left front sensor.
Also --- 'scuse me if this has been covered -- do we know what kind of shape your battery is in? I'm thinking this may be in play because when the car is stopped ... that's when voltage tends to be lowest. Marginal batteries do trigger these kinds of faults.
#29
#30
#31
#32
We'd like to see at least 12.5+ Volts. Let us know the temperature where the car spends the night too.
Corrected for temperature, the rest voltage is one of the most accurate measures possible of a sealed lead-acid battery's state of charge. But it can't be done "on the spot" because it requires the 8+ hour rest interval.
Last edited by Dennis07; 12-22-2014 at 02:31 PM. Reason: clarity
#33
#36
Ok, guys.
The car was parked overnight in the driveway with the temps approx 40-45*F.
The multimeter showed 12.38V before start up. The ABS/SCF lights did not come on upon start up and I drove her about 5 miles.
Parked back in the driveway, I had to raise and lower the top with the engine off to repair a window/gasket seal (water leak with heavy rain yesterday). Upon the next start up, the lights came on.
Battery Issue?
Nick
The car was parked overnight in the driveway with the temps approx 40-45*F.
The multimeter showed 12.38V before start up. The ABS/SCF lights did not come on upon start up and I drove her about 5 miles.
Parked back in the driveway, I had to raise and lower the top with the engine off to repair a window/gasket seal (water leak with heavy rain yesterday). Upon the next start up, the lights came on.
Battery Issue?
Nick
#37
#39
It's sure a candidate.
The good news is, you've already checked the battery. With a rest voltage of 12.38, it will almost certainly fail any sensible "load test" that a drive-in place can offer (they're not standardized). Your measurement indicates it's at about 1/2 of original capacity. (Did you use a charger on it the night before?)
Of course, another test couldn't hurt.
ABS fault or no, you might want to consider a change out, especially going into winter.
(If you don't mind humoring me, I'd still be interested in the results of the "sensor wire wiggle" test.)
Happy Holidays to you too!
The good news is, you've already checked the battery. With a rest voltage of 12.38, it will almost certainly fail any sensible "load test" that a drive-in place can offer (they're not standardized). Your measurement indicates it's at about 1/2 of original capacity. (Did you use a charger on it the night before?)
Of course, another test couldn't hurt.
ABS fault or no, you might want to consider a change out, especially going into winter.
(If you don't mind humoring me, I'd still be interested in the results of the "sensor wire wiggle" test.)
Happy Holidays to you too!
Last edited by Dennis07; 12-23-2014 at 04:03 PM. Reason: clarity and .... grammar, dummy!