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YOUR RESEARCHDiagnostcis codes - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Use a/c panel display illum
Performed · outcome unconfirmed
No successful repair reported for this finding.
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Performed · outcome unconfirmed · Original poster
58 & 58d voltage) - used for A/C panel display illum.
Diagnostcis codes - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Use a/c panel display illum' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run time in seconds (255 max.)(=0xff)' (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.
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Suggestion · Original poster
30c - Engine run time in seconds (255 max.)(=0xff)
Diagnostcis codes - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Set until moving
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Suggestion · Original poster
When not moving, the instrument cluster OBC temp display retains it's last setting until moving.
Diagnostcis codes - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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Generation: 20261026T135432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Ciao
may be someone has already posted this but... i thik is useful.
To access diagnostics:
Hold down the Recirculating & Air up buttons for 5 seconds. The + - buttons go up and down through the list of "c" codes. The center vent button switches the left display between the "c" code and its actual value. Press the Auto button to exit.
0c - ERL
1c - Oil Temp?
2c - Inside temp. Sensor mounted in the aspirator assembly at the side of the dash.
3c - Outside temp. Sensor located inside the air inlet of the A/C unit.
4c - Outside temp. Sensor located in front grill of the radiator. The data is fed to the Climatronic from the instrument cluster. When not moving, the instrument cluster OBC temp display retains it's last setting until moving. This is to prevent heat emanating from the radiator affecting the temp. sensor. The A/C unit uses the lower of the two outside air temp values in determining fresh-air temp.
5c - Outside temp. (matches with OBC outside temp display)
6c - Coolant temp.
7c - Footwell discharge temp.
8c - Sun sensor (dash top)
9c - Sun sensor.
10c - Passenger compartment fan speed.
11c - Passenger compartment fan voltage.
12c - Temperature mix Flap command 1=COLD, 100=HOT
13c - Temperature mix Flap position
14c - Central Flap command
15c - Central Flap position
16c - Footwell/Defrost Flap command
17c - Footwell/Defrost Flap position
18c - Recirculation Valve command 1=OFF, 100=RECIRC
19c - Recirculation Valve position (feedback)
20c - Vehicle speed in kph, updating only once per second. (real speed, not speed+safety margin as in the speedometer)
21c - Engine RPM in hundreds. This too only updates once per second.
22c - ?
23c - ?
24c - Sun sensor, exterior lights switch & panel lights control (term. 58 & 58d voltage) - used for A/C panel display illum.
25c - ?
26c - ?
27c - ?
28c - Fan speed?
29c - ?
30c - Engine run time in seconds (255 max.)(=0xff)
31c - Timing counter
32c - Displays test
33c - Software version? Mine states 3.4
34c - ?
35c - Outside temp. from inlet sensor (filtered?)
36c - temp?
Hi from Italy
Bibendum
It appears my C codes for temp readings are a combination of F and C? For example the outside temp readings are obviously Centigrade, whereas the Oil Temp readings... being in the 200 degree range at operating levels, must be "F"... does that make sense?
This is a source reference. Confirm exact model applicability in the original material.
