Planet-9

987.1 Reverse switch harness location

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7 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCH987.1 Reverse switch harness location

Leading reported evidence

Disconnect but missing

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
While that went well the backup lights aren't functioning and I found that the wiring to the reverse switch was not only disconnected but missing.
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987.1 Reverse switch harness location

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Leading evidence: 'Disconnect but missing' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect but missing' (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.

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1 matching discussions · 7 captured posts examined · 1 partial discussions

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Replace by the previous owner

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
that had the clutch replaced by the previous owner.
Original post Read captured discussion
987.1 Reverse switch harness location

Repair wire harnesses, easy peezy)

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 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.

Suggestion
Can source a new switch plug with pigtail and can splice it into an existing broken harness (spent my career in electronics and much of that time was designing/building/repairing wire harnesses, easy peezy).
Original post Read captured discussion
987.1 Reverse switch harness location

Replace clutch

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
Someone forgot to plug the connector back into the switch when re-installing the tranny after changing the clutch.
Original post Read captured discussion
987.1 Reverse switch harness location

Frequently discussed actions (4)

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

Disconnect but missing

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
While that went well the backup lights aren't functioning and I found that the wiring to the reverse switch was not only disconnected but missing.
Original post Read captured discussion
987.1 Reverse switch harness location

Repair wire harnesses, easy peezy)

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
Can source a new switch plug with pigtail and can splice it into an existing broken harness (spent my career in electronics and much of that time was designing/building/repairing wire harnesses, easy peezy).
Original post Read captured discussion
987.1 Reverse switch harness location

Replace by the previous owner

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
that had the clutch replaced by the previous owner.
Original post Read captured discussion
987.1 Reverse switch harness location

Replace clutch

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
Someone forgot to plug the connector back into the switch when re-installing the tranny after changing the clutch.
Original post Read captured discussion
987.1 Reverse switch harness location

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.

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

Planet-9: 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: 20261026T181445Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

This is going to be an odd one. Recently purchased a 2006 Cayman S that had the clutch replaced by the previous owner. While that went well the backup lights aren't functioning and I found that the wiring to the reverse switch was not only disconnected but missing. Pulling my hair out trying to find it. Figured the best place is to start at the source and work my way back to the switch plug. Wondering if anyone here knows where it sources from (engine bay?).

POST 2Original post

Yeah, tracing it back is the only thing I can tell you to do. Start at the top of the transmission. It may be stick up there somewhere. Hopefully it's not pinched between the bell housing and engine block. Because that would SUUUUUUCK.

POST 3Original post

Even that I can deal with. Can source a new switch plug with pigtail and can splice it into an existing broken harness (spent my career in electronics and much of that time was designing/building/repairing wire harnesses, easy peezy). But need a source to work with! Not sure if the signal lead comes from the rear body control module under the driver seat or from under the dash. Believe the other switch lead goes to chassis ground.

POST 4Original post

i don't know much about that switch, but maybe this wiring diagram will help you figure it out.

POST 5Original post

Thanks! I found this schematic last night and started poking about the left side of the engine bay. Really need to get it up on a lift to do this right.

POST 6Original post

The reverse light switch is on the right (passenger) side of the transmission housing, underneath the shift cable.

POST 7Original post

That part I know. What's missing is the electrical connector and associated harness. Someone forgot to plug the connector back into the switch when re-installing the tranny after changing the clutch. Can't find the doggone plug and harness!

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