6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHRH side rear fog light
Leading reported evidence
Run lights)
Suggestion or failed attempt
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 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
The Canadian cars have at least one different relay (for daytime running lights) but most everything else looks the same.
Leading evidence: 'Run lights)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run lights)' (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.
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 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
But if I have have to do all that and run a wire to the fuse box, I think I'd rather forget it
You would need to run a wire from this gang connector through the interior wiring harness under the passenger side door sill and then up to the fuse panel.
You would need to run a wire from this gang connector through the interior wiring harness under the passenger side door sill and then up to the fuse panel.
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.
6 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: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I understand this has been posted somewhere before, but my question is slightly different. The RH side rear fog is not functional in the US/German version of the car, but in UK they work. When you look at the rear light assembly, the socket for the RH side rear fog light is there already, with a bulb and wires going into the harness, ready to go.
My question is, rather than splicing a wire from the LH side fog light power wire to the RH side, is there a simpler way to just activate whats already there?
2002 C4S
No, not that I am aware of.
The empty light socket wiring goes to a harness on the passenger side of the car under the passemger side rear seat/side panel and to a gang connector. It stops there. You would need to run a wire from this gang connector through the interior wiring harness under the passenger side door sill and then up to the fuse panel. Finally from the fuse panel up to the light switch on the dash.
I've looked at it and it's a great deal of trouble. (IMHO of course)
Loren
Maybe its because mine is a Canadian car, but the socket I have on the RH side is not empty. It actually has a bulb and everyting in it, seeming ready to go. Its temptingly easy looking. But if I have have to do all that and run a wire to the fuse box, I think I'd rather forget it
US cars I've seen have the socket no bulb. But I've looked at the wiring for the same reason as you. My understanding is that the US and Canadian cars share the same wire harness (at least according to the Porsche Technical Manual schematics). The Canadian cars have at least one different relay (for daytime running lights) but most everything else looks the same.
It is a lot of work just to get to the connector in the back rear seat area but you are welcome to try... perhaps they did something different on the '02's?
I decided it wasn't worth my time
Not terribly bright.
In the UK they drive on the other side of the road, thus a "fog" light (only) on the right is more PC.
If you light up both "fog" lights your're going to get a lot of people assuming you're riding the brakes, some will even likely pull up alongside in traffic to tell you so.
Until rear "fog" lights become more common, or standard, in the US I don't think there is any good answer except to not use them at all.
First one I saw in the US was on a prototype ML and I thought he had a wiring flaw.
