Porsche Club GB

CDR23 removal

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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 RESEARCHCDR23 removal

Leading reported evidence

Install main car battery

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
My CDR23 head unit has stopped working after I re-fitted the main car battery.
Original post Read captured discussion
CDR23 removal

Frequently discussed work

Check fuse e6, just in case

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'll check fuse E6, just in case, before I start taking the head unit out.
Original post Read captured discussion
CDR23 removal

Read full discussion summary

Leading evidence: 'Install main car battery' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check fuse e6, just in case' (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 2 other evidence results

Check fuse e6, just in case

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'll check fuse E6, just in case, before I start taking the head unit out.
Original post Read captured discussion
CDR23 removal

Reconnect power supply

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
It should connect without a problem when you reconnect the power supply.
Original post Read captured discussion
CDR23 removal

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.

Check fuse e6, just in case

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'll check fuse E6, just in case, before I start taking the head unit out.
Original post Read captured discussion
CDR23 removal

Install main car battery

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
My CDR23 head unit has stopped working after I re-fitted the main car battery.
Original post Read captured discussion
CDR23 removal

Reconnect power supply

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
It should connect without a problem when you reconnect the power supply.
Original post Read captured discussion
CDR23 removal

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.

Porsche Club GB: 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: 20261026T103553Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

My CDR23 head unit has stopped working after I re-fitted the main car battery. Main fuses are OK but I suspect that the in-line fuse in the unit has gone. Camtune say this is easy to check, but I don't have the keys to unlock the head unit and remove it. Are they keys easily available or do I need to hold on for 3 weeks until she's at Camtune for the service? If I do get the unit out, is there anything I need to take care over to make sure the unit and car handshake properly when the power is reconnected? John

POST 2Original post

They are Becker keys. You find them on eBay occasionally, but they only a few quid from a Becker dealer (so I'm told). Photo courtesy of Renntech: Edit: Just found these on eBay (£3.50 inc postage): http://cgi.ebay.co.uk/CT22BE01-Becker-Car-Stereo-Radio-Release-Removal-Keys_W0QQitemZ330199460549 The CDR23 is coded to your DME, so there are no radio codes to worry about. It should connect without a problem when you reconnect the power supply.

POST 3Original post

the keys are also available from Halfords about £2.00 and they worked fine on mine - again select the ones for Becker when you are re-fitting take care with the plastic sticker which is in the depression on the left hand side of the unit as you look at it, since if this isnt present the alarm will think the radio has been stolen and bleep at you every time you set it! pm me if you have any problems Jon

POST 4Original post

I had a similar problem, have a read it may help you out. www.porscheclubgbforum.com/tm.asp?m=329873&mpage=1&key=&#334686

POST 5 / ORIGINAL POSTEROriginal post

Thanks everyone. I'll check fuse E6, just in case, before I start taking the head unit out. Cheers, John

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