Bosch 5.2 Ecm Pin Assignments Up To 911 997) - BMW 5251 Service Manual

130-59
Fuel Injection
: - -
- i .
Evaporative emissions
1.
control diagram (M5.2.1)
i 1
i
I
@
1. ECM
r . = . : - : ,
2.
Purge valve
3.
Leak detection pump (LDP)
4. Liquid vapor separator
5.
Purge canister
6. Filter
Bosch
M5.2 ECM
pin assignments
(M62 up
to
911997)
Tabled. Bosch M5.2 ECM pin assignments
I ' 1 - 1 .
. .
-
4
1
output
/
Cyl. 4 fuel injection valve
I
Cyl. 4 fuel injection valve (cycled ground)
Pin
1
2
3
i
I I
7
/
output
I
Cyl. 6 fuel injection valve
I
Cyl. 6 fuel injection valve (cycled ground)
Type
output
output
output
I I
,
8
1
output
I
Malfunction indicator light (MIL) (USA only)
I
lliumlnated for exhaust gas related diagnostic trouble code
5
Component/function
Oxygen sensor heater signal
Idle speed control -closing winding
Cvl. 1 fuel iniection valve
Note
DME heated oxygen sensor 1 splice
idle speed control valve (cycled ground)
Cvl. 1 fuel iniection valve lcvcled around)
6
1
ground
I
Fuel injection valve ground
1
Ground
output
9
Not used
Not used
11
12
1 3
Cyl. 5 fuel injection valve
10
1
input
I
Electronic immobilizer (EWS)
/
Electronic immobilizer (EWS) control unit
input
Heated oxygen sensor signal
Cyl. 5 fuel injection valve (cycled ground)
output
input
input
16
Start signal Starter relay
N C compressor signal
Terminal 50 signal
Knock sensor signal
1 7
1
ground
I
Hot film mass air flow (MAF) sensor ground
I
Hot film mass air flow (MAF) sensor ground
output
Heating and A/C control module
Ignition switch
Knock sensor
Intake air temperature intake air temperature sensor (voltage value)