Rennlist

Error Code P1576 (fault code 274) Cruise control readiness light

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHError Code P1576 (fault code 274) Cruise control readiness light

Leading reported evidence

Replace back in the original cluster (bad lcds)

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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
- I swapped back in the original cluster (bad lcds) with the same affect
Original post Read captured discussion
Error Code P1576 (fault code 274) Cruise control readiness light

Read full discussion summary

Leading evidence: 'Replace back in the original cluster (bad lcds)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace back in the original cluster (bad lcds)' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 3 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Replace the driver seat bottom

Performed · outcome unconfirmed

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 driver seat bottom has been replaced so the driver seat was out of the car
Original post Read captured discussion
Error Code P1576 (fault code 274) Cruise control readiness light

Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace back in the original cluster (bad lcds)

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
- I swapped back in the original cluster (bad lcds) with the same affect
Original post Read captured discussion
Error Code P1576 (fault code 274) Cruise control readiness light

Replace the driver seat bottom

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 driver seat bottom has been replaced so the driver seat was out of the car
Original post Read captured discussion
Error Code P1576 (fault code 274) Cruise control readiness light

Coverage and how to read this overview

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

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T190023Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

hey folks, working on a 2000 base cab, manual. Cruise is not working -- I could care less but I have a buyer and he would like it fixed. - cruise bulb/light in the cluster is good and will come on when the key is in pos 1 - confirmed all 4 brake lights work with new bulbs (side lenses, high mount, and spoiler mount) - the cluster in the car is NOT ORIGINAL to the car but it is from a .1 and it is a used OEM - I swapped back in the original cluster (bad lcds) with the same affect - fuse is good, same circuit as the brake lights and they work I have never had a 996 with the cruise that doesnt work. Seems like a system that always seems to work - the driver seat bottom has been replaced so the driver seat was out of the car - is there anything in the harness/module under the driver seat I need to recheck? thanks.

POST 2Original post

You need to check to see if it is activated in the DME and dash using a Porsche specific scan tool like the PIWIS or Durametric Pro.

POST 3Original post

There is a total of 4 electrical switches on the brake and clutch pedals. Either clutch or brake switches can keep the Cruise from setting. One of the switches can be faulty or out of adjustment. One possible check is to drive the car at speed and pull up on the pedals with left foot/toe while trying to activate the cruise control. Other than that you will need to be good at Electrical Diagnosis to fix...

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