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The BMW E39's onboard electronics are pretty advanced for its time, and still surpasses many present day cars.
Here, I show you a few hidden diagnostic functions hidden inside the instrument cluster on-board computer.
The E39 had two grades of instrument clusters, and the one in my car is commonly known as the High OBC, which is the higher of two instrument cluster variants available.
Timestamps by Test:
- 02:00 - Test Nr. 1 - Vehicle Info
- 03:34 - Test Nr. 2 - Instrument Sweep Test
- 04:06 - How to Unlock
- 04:54 - Test Nr. 3 - Fuel used and days since last service
- 05:42 - Test Nr. 4 - Current fuel consumption
- 05:58 - Test Nr. 5 - Average fuel consumption
- 06:53 - Test Nr. 6 - Fuel level reading
- 07:34 - Test Nr. 7 - Coolant temp, engine speed, ambient temp
- 08:30 - Test Nr. 8 - Vehicle speed (actual vs displayed)
- 08:57 - Test Nr. 9 - Battery voltage
- 09:16 - Test Nr. 10 - Domestic market
- 10:17 - Test Nr. 11 - Einheit numbers
- 10:29 - Test Nr. 12 - Average speed, ETA
- 11:10 - Test Nr. 13 - Warning sounds
- 11:29 - Test Nr. 14 - Diagnostic fault codes
- 12:10 - Test Nr. 15
- 12:25 - Test Nr. 16
- 12:31 - Test Nr. 17
- 12:41 - Test Nr. 18
- 12:49 - Test Nr. 19 - Lock
- 12:55 - Test Nr. 20 - KVBR (Fuel consumption correction)
- 13:12 - Test Nr. 21 - Reset
- 13:30 - Test: Battery voltage when starting car
- 14:21 - Test: Readings with car on the move
From the BMW UK forum (forum.bmw5.co...., was able to obtain the meaning behind the Test 14 fault codes:
01 Fuel consuming signal from engine control unit faulty
02 Fuel consuming signal (ti-II) from engine control unit faulty
03 Road signal from ABS/ASC/DSC control unit faulty
04 RPM (tD) from engine control unit faulty
05 Coolant temperature sensor faulty
06 Temperature sensor
07 Outside temperature sensor
08 Fuel level sensor 1 (Fuel pump side)
09 Fuel level sensor 2 (without fuel pump)
10 Tension to high at the power supply
11 EGS signal disturbed
12 Power supply Pin 15
13 Power supply Pin R
14 Service Interval Display (SAI) Reset
15 Pressure Switch
16 Gong Sound (T1)
17 Gong Sound (T2)
18 Gong Sound (T3)
19 Current too high in the instrument cluster
20 Internal error in the LCM module
21 Internal error (IKE)
22 Vehicle speed signal (Tacho-A)
23 Instrument cluster -Bus (I-Bus)
24 Body-Bus (K-Bus)
25 Error during activation of the instrument in the instrument cluster
26 Undefined error
27 Internal Error
28 I-BUS error
29 Power Supply
30 Power Supply
31 Power Supply
32 Power Supply
33 K-BUS
34 Oil Pressure Control Light
35 Reverse gear recognition
3E Error by activation display
3F Instrument cluster current too high
44 Oil pressure switch
87 Body-Bus (K-Bus)
88 (I-Bus)
8B Gong Ton (T3)
8C Power supply Term. R
8D EGS Data lead disturbed
8F Power supply
90 Power supply terminal 15
91 Gong Ton (T2)
92 Gong Ton (T1)
BC Brake fluid level
BD Electronic brake power
BE LCM internal error
BF Instrument Cluster Internal Error
C1 ABS/ASC/DSC Signal(Tacho)
C3 RPM signal from DME control unit
C6 Output PIN 6 (Code EWS)
C7 Fuel tank sensor 1 (fuel pump side)
CD Fuel consumption signal DME 1
CE Outside temperature sensor
CF Service Interval Display (SIA) Reset
D3 Coolant temperature sensor
D5 Oil temperature sensor
D7 Fuel tank sensor 2 (without fuel pump)
DA Fuel consumption signal DME 2
F0 CAN-Bus off
F4 CAN Identification missing
F5 CAN Identification missing (ASC)
F6 CAN Identification missing (DME)
F7 CAN Identification missing (DME)
F8 CAN Identification missing (DME)
F9 CAN Identification missing (DME)
FA CAN Identification missing (EML)
FB CAN Identification missing (EGS)
FC CAN Identification missing
FD CAN Identification missing
The following sources served as reference in the making of this video:
- mr-fix.info/bmw...
- forum.bmw5.co.u...
- forum.bmw5.co.u...
- www.bimmerforu...!
Digressing, follow the link to this Google Form to order the cornflake cookies seen at the end of the video: goo.gl/forms/G...
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