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Old 07-15-2010, 03:25 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 20,111
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by 540iman View Post
If they all don't test as such, replace that one.
Bill's right. In addition, he has posted a most-sensible summary of the rationale of testing the sensors ... even down to listing the "thought process" involved in determining good versus bad sensor test (contrasted with a bad multi-meter setup).

Anyway, I don't know why I do these things, but I unboxed my pristine electrical Bently, headed over to pages ELE-15 to ELE-18 (for DSC) and to pages ELE-21 to ELE-27 (for ASC), listing in text what the wiring diagrams showed me.

ELE-15, ABS/Traction Control, ABS/DSC control module (A65), (1 of 4):
Pin 1 ABS/DSC control module, A65 = 4.0 BR --> X1106
Pin 2 ABS/DSC control module, A65 = 4.0 VI --> X27 F108 50A
Pin 3 ABS/DSC control module, A65 = 2.5 SW/GN --> Pin 2 of M118 Precharge pump
Pin 4 ABS/DSC control module, A65 = 2.5 SW/BR --> Pin 1 of M118 Precharge pump, X1656
Pin 5 ABS/DSC control module, A65 = 2.5 BR --> X1106
Pin 6 ABS/DSC control module, A65 = 2.5 RT/SW --> Pin 60 of X10015 F30 25A
Pin 8 ABS/DSC control module, A65 = 0.5 BL/WS/GE --> Pin 5 of B75 Yaw sensor
Pin 9 ABS/DSC control module, A65 = 0.5 BL/WS/GE --> Pin 2 of B75 Yaw sensor
Pin 10 ABS/DSC control module, A65 = 0.5 WS/BL/GE --> Pin 1 of B75 Yaw sensor
Pin 21 ABS/DSC control module, A65 = 0.5 SW/RT/GE --> Pin 6 of B75 Yaw sensor
Pin 23 ABS/DSC control module, A65 = 0.75 RT/SW --> Pin 62 of X10015 F31 10A
Pin 39 ABS/DSC control module, A65 = 0.5 WS/GE --> Pin 3 of B75 Yaw sensor

ELE-15, ABS/Traction Control, ABS/DSC control module (A65), (2 of 4):
Pin 11 ABS/DSC control module, A65 = 0.35 WS/VI --> X183
Pin 41 ABS/DSC control module, A65 = 0.5 BR/SW/GE --> Pin 4 of X1653 B75 Yaw sensor
Pin 12 ABS/DSC control module, A65 = 0.5 RT --> Pin 1 of X114, B2 Left front speed sensor
Pin 28 ABS/DSC control module, A65 = 0.5 BL/RT --> Pin 2 of X114, B2 Left front speed sensor
Pin 13 ABS/DSC control module, A65 = 0.5 BL/WS --> Pin 2 of X376, B4 Left rear speed sensor
Pin 29 ABS/DSC control module, A65 = 0.5 WS --> Pin 1 of X376, B4 Left rear speed sensor
Pin 15 ABS/DSC control module, A65 = 0.5 BL/GE --> Pin 2 of X113, B1 Right front speed sensor
Pin 16 ABS/DSC control module, A65 = 0.5 GE --> Pin 1 of X113, B1 Right front speed sensor

Pin 16 (without IKE) = 0.5 GE --> J5, Pin 16 of X11175

ELE-15, ABS/Traction Control, ABS/DSC control module (A65), (3 of 4):
Pin 18 ABS/DSC control module, A65 = 0.35 GE/WS --> X10184 --> X10184 --> Pin 24 of X991, A53 Control module, headlight vertical aim control
Pin 18 ABS/DSC control module, A65 = 0.35 GE/WS --> X10184 --> X1310 --> Pin 11 of X1312, A112 Control module, navigation
Pin 19 ABS/DSC control module, A65 = 0.35 GE/GN --> Pin 22 of X60004, A6000 DME control module
Pin 25 ABS/DSC control module, A65 = 0.75 WS/BL --> Pin 1 of X1654, B76 Pressure sensor
Pin 26 ABS/DSC control module, A65 = 0.75 BL/WS --> Pin 2 of X1654, B76 Pressure sensor
Pin 42 ABS/DSC control module, A65 = 0.75 SW/VI --> Pin 3 of X1654, B76 Pressure sensor
Pin 17 ABS/DSC control module, A65 = 0.35 GR/SW --> J5, Pin 15 of X16, A2 Instrument cluster
Pin 24 ABS/DSC control module, A65 = 0.5 GE/SW --> X18836
Pin 40 ABS/DSC control module, A65 = 0.5 GE/BR --> X18835
Pin 27 ABS/DSC control module, A65 = 0.5 SW/GE --> Pin 16 of X1869, A169 Switching center

ELE-15, ABS/Traction Control, ABS/DSC control module (A65), (4 of 4):
Pin 30 ABS/DSC control module, A65 = 0.5 BL/GN --> Pin 2 of X377, B3 Right rear speed sensor
Pin 31 ABS/DSC control module, A65 = 0.5 GN --> Pin 1 of X377, B3 Right rear speed sensor

Pin 34 ABS/DSC control module, A65 = 0.5 BR/RT --> X1101
Pin 35 ABS/DSC control module, A65 = 0.35 GE/RT, X1746 --> Pin X10183 --> Pin 30 of X945, A80 EDC control module
Pin 35 ABS/DSC control module, A65 = 0.35 GE/RT, X1746 --> X10183 --> Pin 1 of X131- --> Pin 10 of X1312, A112 Control module navigation
Pin 32 ABS/DSC control module, A65 = 0.35 BL/RT --> X181
Pin 36 ABS/DSC control module, A65 = 0.35 BR/GN/GE, X1746 --> X1123

ELE-21, ABS/Traction Control, ABS/ASC Power, (1 of 1):
Pin 1 ABS/ASC control module, A52 = 4.0 BR --> X1106
Pin 5 ABS/ASC control module, A52, X1170 = 2.5 BR --> X1106
Pin 2 ABS/ASC control module, A52 = 4.0 RT --> X27, F108 25A
Pin 6 ABS/ASC control module, A52 = 2.5 RT/SW --> Pin 60 X10015, F30 25A
Pin 23 ABS/ASC control module, A52 = 0.75 RT/WS --> Pin 62 X10015, F31 10A
Pin 11 ABS/ASC control module, A52, X1170 = 0.35 WS/VI --> X183, Pin 20 of X6002

ELE-25, ABS/Traction Control, ABS/ASC rear wheel speed sensors, (1 of 1):
Pin 31 ABS/ASC control module, A52 = 0.5 GN --> Pin 1 of B3 Right rear speed sensor
Pin 30 ABS/ASC control module, A52 = 0.5 BL/GN --> X377, Pin 2 of B3 Right rear speed sensor
Pin 29 ABS/ASC control module, A52 = 0.5 WS --> Pin 1 of B4 Left rear speed sensor
Pin 13 ABS/ASC control module, A52, X1170 = 0.5 BL/WS --> X376, Pin 2 of B4 Left rear speed sens
or


ELE-27, ABS/Traction Control, ABS/ASC front wheel speed sensors, (1 of 1):
Pin 16 ABS/ASC control module, A52 = 0.5 GE --> Pin 1 of B1 Right front speed sensor
Pin 15 ABS/ASC control module, A52 = 0.5 BL/GE --> X113, Pin 2 of B1 Right front speed sensor
Pin 12 ABS/ASC control module, A52 = 0.5 RT --> Pin 1 of B2 Left front speed sensor
Pin 28 ABS/ASC control module, A52, X1170 = 0.5 BL/RT --> X114, Pin 2 of B2 Left front speed sensor


After all that, I'm not sure what value this adds to the general picture.
To help, can someone decipher what all that cryptic stuff above from the wiring diagram actually means to us?

Last edited by bluebee; 07-16-2010 at 11:32 PM.
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