10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH1999 996
Leading reported evidence
Disconnect battery
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
I accidentally discovered that if you disconnect the battery, then reconnect, the displayed information reverts back to outside temperature, instead of countdown to empty.
Leading evidence: 'Disconnect battery' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect battery' (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
I accidentally discovered that if you disconnect the battery, then reconnect, the displayed information reverts back to outside temperature, instead of countdown to empty.
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
I chose using two of the blank buttons because 1, it was easier, and 2, I like the addition of usable buttons next to the climate control.
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
Some 99-00's don't have it available, the OBC needs to be activated with a Porsche scan tool, then if you don't have the additional stalk (assuming not), you can either buy the stalk and wire it to the gauge cluster, or you can use two of your blank buttons next to the climate control and wire those directly to the gauge cluster and cycle that way.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Disconnect battery
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
I accidentally discovered that if you disconnect the battery, then reconnect, the displayed information reverts back to outside temperature, instead of countdown to empty.
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
I accidentally discovered that if you disconnect the battery, then reconnect, the displayed information reverts back to outside temperature, instead of countdown to empty.
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
Some 99-00's don't have it available, the OBC needs to be activated with a Porsche scan tool, then if you don't have the additional stalk (assuming not), you can either buy the stalk and wire it to the gauge cluster, or you can use two of your blank buttons next to the climate control and wire those directly to the gauge cluster and cycle that way.
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.
10 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: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
The lower left hand lever will toggle through the OBC parameters/functions by pushing up or pulling down. Pull toward you to clear variable parameters (mpg for instance)
Some 99-00's don't have it available, the OBC needs to be activated with a Porsche scan tool, then if you don't have the additional stalk (assuming not), you can either buy the stalk and wire it to the gauge cluster, or you can use two of your blank buttons next to the climate control and wire those directly to the gauge cluster and cycle that way. Still needs to be activated regardless. If you have it activated without, it will show outside temperature, so you'll need buttons or a stalk to scroll through the OBC options.
I chose using two of the blank buttons because 1, it was easier, and 2, I like the addition of usable buttons next to the climate control.
Hmm... so mine shows the temp but has no stalk. Maybe I need to play with the blank buttons and see if they do anything.
Newb question, but is there a tech post on how to wire it in if it's not been done?
1500 miles I've driven and haven't even figured out how to program the radio!
If you're shows temp but no third stalk then it's likely activated. Empty buttons are usually next to the climate which is closest to wire to the gauge cluster, if there's blanks next to that it's probably not wired. For the most part it's pretty simple, but getting the connectors off the cluster were kind of a pain to disconnect it so you can wire.
There are writeups, and it's fairly simple. Two wires to each button, then depending on model you have to plug male connects into the back of the cluster in specific slots to function properly.
This post has some links to DIY's to wire the On Board Computer. It requires removing the instrument cluster (not to hard), and making or buying a wiring harness.
https://rennlist.com/forums/996-foru...m-buttons.html
I accidentally discovered that if you disconnect the battery, then reconnect, the displayed information reverts back to outside temperature, instead of countdown to empty. Mine does not have the OBC stalk either.
I have a "theory" as to why some 996s have an OBC lever (left hand side) and some do not.
My 996 Mk I's COA shows "On Board Computer" was ordered as an option, and it has the "OBC Lever".
So my theory is All 996s have the OBC, but only those that were ordered with that option have the OBC lever. Just a thought.....Porsche ALWAYS charges for options, sometimes a lot!
relinuca
This is more than a theory. It's true.
Early 996's had the OBC as an option. If the option was not purchased, the OBC is still there, just disabled. It can be enabled by a PIWIS or Durametric. The control for it can be added by buying the fourth stalk, or hacking a button to toggle the options. (see links above).
Later 996's had the OBC as a standard feature.
This is a source reference. Confirm exact model applicability in the original material.
