Rennlist

A good puzzle...

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Original source

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHA good puzzle...

Leading reported evidence

Reconnect two halves

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
Today, I accessed the 2 pin connector for the frunk latch, cleaned it, and reconnected the two halves.
Original post Read captured discussion
A good puzzle...

Frequently discussed work

Reconnect trick

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 · Original poster
I couldn't recreate yesterdays dc/reconnect trick that turned it on.
Original post Read captured discussion
A good puzzle...

Read full discussion summary

Leading evidence: 'Reconnect two halves' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'micro switch in the front trunk latch' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Reconnect trick' (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 · 5 captured posts examined · 0 partial discussions

Compare 3 other evidence results

micro switch in the front trunk latch

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect a cause: 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.

Suspected cause
Probably the micro switch in the front trunk latch
Original post Read captured discussion
A good puzzle...

Reconnect trick

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 · Original poster
I couldn't recreate yesterdays dc/reconnect trick that turned it on.
Original post Read captured discussion
A good puzzle...

Test negative side of the bulb carrier

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
Put a multimeter on the bulb carrier and a solid ground to make sure it is always getting 12V+, then test the negative side of the bulb carrier to make sure it's getting a switched ground when hood is open.
Original post Read captured discussion
A good puzzle...

Frequently discussed actions (3)

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

Reconnect trick

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 · Original poster
I couldn't recreate yesterdays dc/reconnect trick that turned it on.
Original post Read captured discussion
A good puzzle...

Reconnect two halves

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
Today, I accessed the 2 pin connector for the frunk latch, cleaned it, and reconnected the two halves.
Original post Read captured discussion
A good puzzle...

Test negative side of the bulb carrier

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
Put a multimeter on the bulb carrier and a solid ground to make sure it is always getting 12V+, then test the negative side of the bulb carrier to make sure it's getting a switched ground when hood is open.
Original post Read captured discussion
A good puzzle...

Reported and suspected causes (1)

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

micro switch in the front trunk latch

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect a cause: 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.

Suspected cause
Probably the micro switch in the front trunk latch
Original post Read captured discussion
A good puzzle...

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.

5 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: 20261027T150039Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

First, I did read the owners manual cover to cover. I just got the car, and the trunk light didnt work. The engine bay light does. Today, I accessed the 2 pin connector for the frunk latch, cleaned it, and reconnected the two halves. The light went on immediately. Yay! I laid my phone, recording video, in the trunk and closed it to verify the light goes out. Upon re-opening the trunk, the light remained out. I'm not sure any of the switches/components in the system are defective. Is there some quirk in the security system programming I don't know about? 2003 C4S Thanks in advance.

POST 2Original post

close the trunk completely shut then try opening it again. light should turn on.

POST 3Original post

The bulb carrier has a constant 12V+ connection and a switched ground signal that is sent to it by the CLU when the latch microswitch is triggered. Put a multimeter on the bulb carrier and a solid ground to make sure it is always getting 12V+, then test the negative side of the bulb carrier to make sure it's getting a switched ground when hood is open.

POST 4Original post

Probably the micro switch in the front trunk latch

POST 5 / ORIGINAL POSTEROriginal post

Quotes source post: 13706917

Probably, but I can't find it. You have to remove the latch? BTW, Today I hooked up a multimeter to battery ground, and probed both bulb wires. Each had 12V ! Whaaaa? I couldn't recreate yesterdays dc/reconnect trick that turned it on. The bulb is still good. Why couldn't they just stick with the old plunger type switch...

This is a source reference. Confirm exact model applicability in the original material.