Hidden A/C Menu
Thread Starter
SPONSOR
Joined: Aug 2006
Posts: 4,909
Likes: 130
From: Houston
C63S
Hidden A/C Menu
Thanks to the E55 guys for this one.
Press and hold the A/C Off / EC Rest button on your C32 until a different display comes up. You'll notice that there are two digits that flash on each side of the A/C screen. If you press the Auto button on the drivers side, the numbers will increment from 00-99. I have been using the 06 code and the 01 code.
01 In-car temperature sensor.
02 Outside temperature sensor.
03 Heater core temp, left.
04 Heater core temp, right.
05 Evaporator temperature sensor.
06 Engine coolant temperature.
07 Regrigerant pressure in bar (e.g. '4' is 4 bar).
08 Refrigerant temperature.
09 Not used.
10 Heater blower control voltage (normal 08-6.0, meaning .8 to 6 volts).
11 Emissions sensor voltage (to detect atmospheric gases and recirculate interior air).
12 Sun sensor voltage (to shift airflow in car).
20 Control current for auxilliary fan (electric fan on radiator, given in milliamps or mA).
21 Engine speed (x100).
22 Road speed (km/h or mph depending on installation).
23 Battery voltage at terminal 58d (as a percentage of total voltage, e.g. 99.0 = 99%).
24 Battery voltage (e.g. 12.8 = 12.8V).
40 Climate control software version.
41 Climate control hardware version.
To exit, press the A/C Off / EC Rest button again.
Press and hold the A/C Off / EC Rest button on your C32 until a different display comes up. You'll notice that there are two digits that flash on each side of the A/C screen. If you press the Auto button on the drivers side, the numbers will increment from 00-99. I have been using the 06 code and the 01 code.
01 In-car temperature sensor.
02 Outside temperature sensor.
03 Heater core temp, left.
04 Heater core temp, right.
05 Evaporator temperature sensor.
06 Engine coolant temperature.
07 Regrigerant pressure in bar (e.g. '4' is 4 bar).
08 Refrigerant temperature.
09 Not used.
10 Heater blower control voltage (normal 08-6.0, meaning .8 to 6 volts).
11 Emissions sensor voltage (to detect atmospheric gases and recirculate interior air).
12 Sun sensor voltage (to shift airflow in car).
20 Control current for auxilliary fan (electric fan on radiator, given in milliamps or mA).
21 Engine speed (x100).
22 Road speed (km/h or mph depending on installation).
23 Battery voltage at terminal 58d (as a percentage of total voltage, e.g. 99.0 = 99%).
24 Battery voltage (e.g. 12.8 = 12.8V).
40 Climate control software version.
41 Climate control hardware version.
To exit, press the A/C Off / EC Rest button again.
Super Member
Joined: Aug 2006
Posts: 529
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2002 C32 ///AMG
I'm sure there are other cool functions that we don't know about.
Dumb question but what are you guys getting for the battery voltage?? My display flashes 06, then 1 36??
I take it 13.6 volts?????????
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Thread Starter
SPONSOR
Joined: Aug 2006
Posts: 4,909
Likes: 130
From: Houston
C63S
This is what they do at the dealer when they say "we'll take it back and hook it up to the computer"
I'm sure there are other cool functions that we don't know about.
Dumb question but what are you guys getting for the battery voltage?? My display flashes 06, then 1 36??
I take it 13.6 volts?????????
I'm sure there are other cool functions that we don't know about.
Dumb question but what are you guys getting for the battery voltage?? My display flashes 06, then 1 36??
I take it 13.6 volts?????????
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Thread Starter
SPONSOR
Joined: Aug 2006
Posts: 4,909
Likes: 130
From: Houston
C63S
Thread Starter
SPONSOR
Joined: Aug 2006
Posts: 4,909
Likes: 130
From: Houston
C63S
MBworld Guru
Joined: Apr 2002
Posts: 22,058
Likes: 18
From: Diamond Bar, CA
W206 PHEV AMG
thx to Jerry for the thread...car won't turn over...checked the voltage...9.5 volt...
suspected cause...burnt out license plate bulb caused an open loop and drain the battery...
suspected cause...burnt out license plate bulb caused an open loop and drain the battery...
MBWorld Fanatic!
Joined: Apr 2007
Posts: 6,171
Likes: 16
300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
Might be
the same system or very close,one of the members on the w210 forum,wrote this nice program,has helped a lot of our members with a/c problems
http://www.eclassbenz.com/node/27
ohlord
"GOT CODES?"
you only need to read values 1-8 and then do the error mode test and record those numbers.........
http://www.eclassbenz.com/node/27
ohlord
"GOT CODES?"
you only need to read values 1-8 and then do the error mode test and record those numbers.........
