Fault Code Guide

Connector B1 Forward Chassis Harness Pinouts
Connector Pin Signal Name Signal Type
B1-A — —
B1-B Module Wake-Up Signal
Digital Input/
Output
B1-C Spare Digital Input 4 Digital Input
B1-D — —
B1-E Ground Power Ground
B1-F Fuel/Water Sensor Ignition Power Digital Output
B1-G Ground Signal Ground
B1-H J1587+ Datalink Datalink
03/31/2004
EFGH
ABCD
GH JK
ABCD
LM
EF
HJK
ABCD
LM
EF
NP
HGF
SRPN
ED
MLK
CB
J
A
ABCD
B12B11B10B9B8B7B6B5B4B3B2B1
A12A11A10A9A8A7A6A5A4A3A2A1
B12B11B10B9B8B7B6B5B4B3B2B1
A12A11A10A9A8A7A6A5A4A3A2A1
1
2
3
4
5
6
7
f543868
G
HGFE
NOTE: Pins shown are viewed toward the BHM or wire insertion end of the harness connector.
1. B1, Forward Chassis Harness
2. B2, Engine Harness
3. B3, Frontwall Harness
4. B4, Frontwall Harness
5. B5, Dash Harness
6. B6, Dash Harness
7. B7, Dash Harness
Fig. 3, Bulkhead Module With Pinout Assignments and Harness Connections
Bulkhead Module 54.12
Specifications
Business Class M2 Workshop Manual, Supplement 10, September 2006400/2