Hi all bimmers, Have u try b4 the Hidden Onboard Computer Functions? If not, check it out below, very useful and interesting! :top:Hidden Onboard Computer FunctionsThere are a number of "secret" OBC functions which can be enabled to display raw data output on the digital odometer. Some are found during standard operation (e.g. average fuel economy), but many others are unique to the "hidden" mode (e.g. engine speed or vehicle speed). Note: these functions will work on ALL US-spec E46 cars, even early 323/325 models which are technically not equipped with the OBC option. The OBC is in fact installed and operative in every E46; as an option, it can be "retrofitted" (activated) by installing the OBC-style turn signal stalk and activating the appropriate trigger during an ECU reflash. The better dealership service departments will know how to do this. Instructions to access the hidden OBC functions: 1. Hold Trip Reset (on left side of OBC) while turning ignition key to on position 1.2. OBC should show "Test" ... "0"3. Depress Trip Reset from "0" to "19.0" and stay after release trip. This is to unlock all the features for testing. If miss the number, keep press trip reset until the number start from "0" again.4. Wait for display to show "Off" then "on", then "off" again and so on. U got to depress trip reset for 1/4 second and release it while "off" is on board.5. With no delay press Trip Reset several times to select one of the following function below and release it and stay for activate function. For instance, u press till stop at function 4, so OBC will show "0", then "1", then "2", then "3", then "4",...then "7" after successfully activate the fuction, the "7" will change to "7.0". BMW E46 On-Board Computer (OBC) Hidden Codes 1. example description 1 Car Engine and cluster data 1.0 46nnn Chassis nr/VIN serial number (last 5 digits) 1.1 4nnn K-number 1.2 690236 Cluster Part # 1.3 045210 Coding (04)/diagnosis (52)/bus index (10) 1.4 1200 Week (12)/year of manufacture (2000) 1.5 09_160 Hardware (09) and software # (16.0) of cluster 1.6 Not used 1.7 04__44 CAN-version (04) **-revision index (44) -- 2 (test) Cluster System Test - Activates the gauge drivers, indicators and LEDs to confirm function -- 3 SI Data 3.0 1098 Used fuel in liters since last SI (Service Inspection) 3.1 0231 Periodic inspection days; elapsed days (since last SI) -- 4 Momentary Consumption 4.0 0145+ Instant fuel consumption - 0145=14.5 liters/100km 4.1 0018 Instant fuel consumption - 0018=1.8 l/Hour -- 5 Distance Gone Consumption 5.0 082 Average mileage; 082=8.2 liters/100km 5.1 0536 Calc. km to refuel (momentary distance to go) -- 6 Fuel Level sensor inputs in liters 6.0 109330+ Fuel level averaged; Left half sensor input=10.9 liters; Right sensor input=33.0 liters 6.1 0439+ Total tank level averaged; vlgs 6.0: 10.9+33.0=43.9 liters 6.2 0442+ Indicated value (44.2) and tank phase -- 7 Temperature and Speed 7.0 021+ Coolant/Engine temperature (2.1C) 7.1 130 Ambient/Outside temperature - chg met 5 pts. 125/130/135 7.2 + Engine speed / Current RPMs 1/min 7.3 + Vehicle speed / Current Speed in km/hour -- 8 Input value in HEX form 8.0 1d0+ System voltage ADC-Value Hex code 8.1 26C33C+ ADC Values HG left/HG right 8.2 0000 ADC Value brake degradation sensor (000=o.k.) 8.3 18C ADC Value outside temperature -- 9 Battery 9.0 140 Battery Voltage - 140 = UB 14.0v 9.1 242013+? 9.2 074_78+? 9.3 0011+? -- 13 GonG Gong Test -- 15 Status cluster I/O-ports (bit codes) 0=low; 1=high 1st-belt contact, seat belt fastened=0; 2) ignition lock contact, key inserted=0; 3) door contact, door open=0; 4) clock button pressed=0; 5) SI reset=0, for reset=0; 6) EGS transmission failure=0 Status Digital Outputs (bits) 0=inactive, 1=active 1) Gong output; 2) Brake warning lamp; 3) Low fuel warning lamp; 4) EGA lamp; 5) seat belt lamp; 6) manipulation dot -- 19 Lock Status; unlocks functions in range 3-18 19.0 L-On/L-Off Unlock: press button when "L-Off" 21 Software Reset; reset OBC settings 00 End of testEnjoy the test. :top:
Hidden Onboard Computer Functions
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Tried the hidden OBC function just now. Was a bit stumble after step 4... I realized that after depressing it for ~1/4 sec during Off, the screen would back to show the Reset screen with function number again. So that was correct and just cycle to the desire function number to view the data.
A bit disappointed because the instant fuel consumption data is missing, but at least the average mileage is there.
4.0 Instant fuel consumption - 0000= liters/100km
4.1 Instant fuel consumption - 0000= l/Hour
-- 5 Distance Gone Consumption
5.0 Average mileage; 091=9.1 liters/100km
How could the coolant temperature be so long?
7.0 Coolant/Engine temperature; 103 = 10.3C in M'sia?
7.1 130 Ambient/Outside temperature - chg met 5 pts; 345 = ??
A bit disappointed because the instant fuel consumption data is missing, but at least the average mileage is there.
4.0 Instant fuel consumption - 0000= liters/100km
4.1 Instant fuel consumption - 0000= l/Hour
-- 5 Distance Gone Consumption
5.0 Average mileage; 091=9.1 liters/100km
How could the coolant temperature be so long?
7.0 Coolant/Engine temperature; 103 = 10.3C in M'sia?
7.1 130 Ambient/Outside temperature - chg met 5 pts; 345 = ??
viewfinder;335265 said:
Ok, I just found that instant fuel consumption can be test while our car is running, to do that, just start engine n go, u can activate the hidden OBC while driving by depress the reset pin and wait till test screen appear, than u can test whatever current speed, current rpm, instant fuel consumption and so on but be caution while driving for this testing!
7.0 Coolant/Engine temperature; 103 = 10.3C in M'sia? I tested it every morning engine sure cold, meter shown 030 = 3.0C, this result is accepted and while engine running, the temp oso increase, I tested for few day, the max temp I collected was 114=11.4C and normal temperature is 110. So I hoped u can test and compare my results whether tally or not.
7.1 130 Ambient/Outside temperature - chg met 5 pts; 345 = 34.5C for environment temperature .=
