PSM Failure light came on
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From: North/Central, NJ
PSM Failure light came on
On the way to work today my PSM failure warning light came on and the light on the PSM button does not come on when I press it. Also, noticed over the last few weeks the brake pedal would not always fully return back up, maybe 10-15% depressed, like it was sticking a bit. Brakes and everything otherwise seem to work fine. Brake pads and rotors replaced about 8-10k miles ago and brake fluid(supposedly) changed about a year ago. 2005 C2 38K miles, manual, original owner since new, pretty much daily driven over the last 18 months or so.
Any thoughts or recommendation before I bringer her in? Brake fluid low? Leaking Caliper(s)? Bad brake fluid? Master Cylinder? Sensors? fuses? Are the two related / unrelated? Appreciate any input-thanks.
Any thoughts or recommendation before I bringer her in? Brake fluid low? Leaking Caliper(s)? Bad brake fluid? Master Cylinder? Sensors? fuses? Are the two related / unrelated? Appreciate any input-thanks.
RL Community Team
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From: Clemson, SC
Could be a few things that cause this
- a wheel speed sensor may have gone bad
- A wire on one of the PASM shocks may have become abrsded or chewed through by a rodent.
- Blown fuse if the light on the button doesn't work
Thread Starter
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From: North/Central, NJ
Thanks Petz. Apparently it is intermittent. When I started it yesterday for the drive home it did not come on until about halfway home. On the way to work today the warning did not come on at all and PSM lights up when pressed. Brake pedal still a bit funny. No PASM on my car so not associated with that I assume. Will take it to my Indy and throw it on the Durometric if it persists and when I get the time.
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From: Clemson, SC
Thanks Petz. Apparently it is intermittent. When I started it yesterday for the drive home it did not come on until about halfway home. On the way to work today the warning did not come on at all and PSM lights up when pressed. Brake pedal still a bit funny. No PASM on my car so not associated with that I assume. Will take it to my Indy and throw it on the Durometric if it persists and when I get the time.
How old is your battery or how long has the car sat without being driven or on a battery maintainer. The PSM warning light is the first one to go off when the battery voltage is low or you disconnect and reconnect the battery. It goes away on it's own after all the wheel speed sensors report in, so in less than 100 yards usually.
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From: Saratoga, CA
Thanks Petz. Apparently it is intermittent. When I started it yesterday for the drive home it did not come on until about halfway home. On the way to work today the warning did not come on at all and PSM lights up when pressed. Brake pedal still a bit funny. No PASM on my car so not associated with that I assume. Will take it to my Indy and throw it on the Durometric if it persists and when I get the time.
Thread Starter
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From: North/Central, NJ
OK, I misread your first post as a PASM error. Is there a light on the PSM button itelf - I thought pressing it just illuminated the PSM off light on the dash, but I don't turn mine off too often so am not 100% on this.
How old is your battery or how long has the car sat without being driven or on a battery maintainer. The PSM warning light is the first one to go off when the battery voltage is low or you disconnect and reconnect the battery. It goes away on it's own after all the wheel speed sensors report in, so in less than 100 yards usually.
How old is your battery or how long has the car sat without being driven or on a battery maintainer. The PSM warning light is the first one to go off when the battery voltage is low or you disconnect and reconnect the battery. It goes away on it's own after all the wheel speed sensors report in, so in less than 100 yards usually.
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From: Clemson, SC
Battery "feels" pretty strong on start and is about 5 years old give or take and I did have the alternator cable replaced/upgraded a while back as well. Pretty much daily driving the car so it does not sit for more than a day or so. Yes there is a light on the PSM button when pressed to be disabled.
