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Another ABS/PSM Failure

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHAnother ABS/PSM Failure

Leading reported evidence

Install between the positive and negative lead

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed
You probably need a resistor installed between the positive and negative lead on the 3rd brake light.
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Another ABS/PSM Failure

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Leading evidence: 'Install between the positive and negative lead' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install between the positive and negative lead' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Replace by an led one

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster
The original 3rd brake light was eliminated and replaced by an LED one on the tail.
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Another ABS/PSM Failure

Frequently discussed actions (2)

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Install between the positive and negative lead

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
You probably need a resistor installed between the positive and negative lead on the 3rd brake light.
Original post Read captured discussion
Another ABS/PSM Failure

Replace by an led one

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster
The original 3rd brake light was eliminated and replaced by an LED one on the tail.
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Another ABS/PSM Failure

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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

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POST 1 / ORIGINAL POSTEROriginal post

OK here's my story, I just picked up my car today from the body shop where a new front bumper cover and a Duck tail were fitted. The original 3rd brake light was eliminated and replaced by an LED one on the tail. I start it up and immediately the ABS/PSM lights come on and the dash tells me "Danger Will Robinson drive straight to the repair shop" All quite frightening, I call my mechanic and he says get the codes read and of course it is not showing any codes (at least on a standard OBD2 reader) I mentioned that this forum indicated it could have something to do with the brake light and change over to LED but he said the ABS looks for input from the brake light switch but he doesn't think it monitors the lights themselves? It just seems like a strange coincidence that it fails at the same time I do these modifications. Any suggestions before I take it into the shop?

POST 2Original post

My understanding is that the LED brake light is the problem. You probably need a resistor installed between the positive and negative lead on the 3rd brake light. Memory says 6 OHM/50W resistor, but that may be for going to full LED's on the tail end.

POST 3 / ORIGINAL POSTEROriginal post

Thanks DB Joe...I put a the 6 OHM/50W resistor on the 3rd Brake light (Which is from a 997) and started her up. And Voila! no more warning lights

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