BMW 5251 Service Manual page 451

-.
-
Fuel Injection
I
68
1
/
Not used
Table d. Bosch M5.2 ECM pin assignments
I I
I
69
1
input
I
AIC system standby signal (> 10 V)
1
Heating and AIC control module
Pin
57
58
59
60
61
62
63
64
65
66
67
Type
input
input
input
input
I
70
72
73
74
Componentlfunction
Not used
Not used
Heated thermostat (characteristic map, cooling)
Programming voltage input (voltage value)
Signal input Evaporative emission valve
Not used
Fuel pump relay (ground)
Not used
Not used
Not used
Not used
75
76
77
78
79
80
Note
Characteristic map, cooling
Data llnlc connector
Evaporative emission valve
Fuel pump relay
71
1
ground
I
Control module ground
I
Ground splice
input
input
81
input
input
input
input
output
Not used
I
Knock sensor signal
Not used
Not used
Coolant temperature
82
1 I
Not used
83
I I
Knock sensor
Dual temperature swltch
Not used
Heated oxygen sensor signal (voltage 0.1-1.0 V)
Heated oxygen sensor signal (voltage 0.1-1.0 V)
Crankshaft position sensor signal (speed and
position, AC voltage)
Right rear wheel speed signal
TD signal (engine speed)
85
I I I
Heated oxygen sensor
II
behind catalytic converter
Heated oxygen sensor I behind catalytic converter
Cranitshaft positionlrpm sensor
ABSIASC control module
TD signal splice
84
1 /
Not used
1
output
88
86
1
input-output
1
CAN-Bus high
I
Transmission conlrol module (AGS)
input-output
Injection signal
input-output
Integrated instrument cluster control module (IKE)
CAN-Bus low Transmission control module (AGS)
Data linlc TxD Data link connector