Honda Bmw 5 Service Manual

-. - 
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...

130-62 
Fuel Injection 
Bosch M5.2.1 
ECM pin assignments 
(M62 from 911 997 to 911 998) 
Table  e. Bosch  5.2.1 ECM pin assignments 
i I I 
5 1 I Not  used 
I 
I I 
Note 
I I I 
7 lln~ut l~erminal 30 voltage supply I Fuse 
F4 
Description 
Pin 
Ground point right-hand drive 
Ground connector 
X6460 
I I I 
Signal 
Connector 
X60001 
Ground 4  1 
2 
3 Ground 
Ground point right-hand drive 
Ground connector 
X6460 6 
8 
9 1 
2 
3 
4 
5 
Not  used 
Not used 
Not  used 
- 
6 
7 
8 
9 
10 11 
12 
Ground...

Fuel lnjection 
Table e. Bosch 5.2.1 ECM pin assignments 
Pin 
Isignal 1 Description 1 Note 
Connector 
X60003 
1 
2 
3 
4 
5 
6 
7  8 
9  10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
ate alr empe 
Output 
Output 
Output 
Ground 
Ground 
Output 
Output  Input 
Input 
Input 
Ground 
22 
23 
24 
25 
26 
27 
28 
29 
30 
Injection  signal 
Injection  signal 
Signal, evaporative emission valve 
Not used 
Not used 
Ground  for electronic components 
Not  used 
Not used 
Hot film mass air flow sensor ground...

- 
Fuel Injection 
Table e. Bosch 5.2.1 ECM pin assignments 
Pin 
I~iqnal 1 Description 1 Note 
I  I I 
46 llnput ICrankshaft position sensor Icrankshaft positionlrpm sensor 
38 
39 
40 
41 
42 
43 
44 
45 Ground  Input 
Output 
Output 
Output 
Output 
Ground 
47 
48 
49 
50 
51 
Not  used 
I Not used 
52 
Shield,  knock sensor 
Oil level 
- thermal 
Injection signal 
injection  signal 
Idle speed control - opening winding 
Idle speed control - closing winding 
Not  used 
Ground 
Ground 
-- Ground...

Fuel Injection 
Table Pin 
24 
25 
26 
27 
28 
29 
30 
31 
32 
33 
34 
35 
36 
37 
38 
39 
40 
1 
2 
3 
4 
5 
6 
7 
8 
9 
e.  Bosch 5.2.1 
Signal 
Input 
Input 
Ground 
Output  Input- output 
Output 
Input- output 
Input- output 
Output 
Connector 
X60005 
Output 
Output 
Output 
Output 
Ground 
Output 
Output 
Output 
Output 
ECM pin  assignments 
Description 
Not  used 
Not used 
Voltage supply,  terminal 
15 
Not used 
Not used 
Compressor ON signal  from engine control module 
(DME) 
Ground 
Not...

Fuel Injection 
When system faults are detected, a diagnostic  trouble code 
(DTC)  is stored  in the  engine  control module  (ECM). The MIL 
also illuminates 
if an emissions-related  fault is detected. 
When  faults arise,  or 
if the malfunction indicator lamp  (MIL) is 
illuminated,  begin troubleshooting  by connecting  BMW ser- 
vice  tester 
DISplus, MoDiC, GTl or equivalent  scan tool. The 
capabilities  of OBD 
II software has  the potential  to save hours 
of  diagnostic  time and to help...

130-67 
Fuel Injection / 
ME 7.2 system  overview 
The Bosch  ME 7.2 system  is used on  1999 - 2002 540i mod- 
els. 
1 4 The  ME 7.2 enaine control  module (ECM). located on the 
l and  a combined total of 134  pins. 
--__-- 1 I. 9 pin  connector 
12 3 4 5 2  24 pin connector 
0lliC;nii, 3. 52 pin connector 
4.  40 pin connector 
5. 9 pin connector 
The  ME 7.2 system has  the following functions  or capabilities: 
Electronic throttle control (EDK) integrates idle  and cruise 
control functions.  ECM...

130-68 
Fuel Injection 
0 
4 The ME 7.2 uses  a non-return  fuel rail. The fuel pressure  reg- 
ulator is  integrated  into the fuel  filter. 
I iY.,lii,in 
4 The M62 TU engine  uses a continuously variable VANOS 
system  at each intake camshaft. This system enhances  en- 
gine  performance  and reduces tailpipe emissions. Both  cam- 
shafts  are adjusted simultaneously within 
20 (maximum)  of 
the camshafts  rotational axis. This equates  to a maximum 
span of 
40°crankshaft rotation. 
regulalor from...

-- 
Fuel Injection I 
The PWG  potentiometers provide DC voltage  signals as in- 
put to the  ME 7.2 control  module for throttle and idle  control 
functions. Potentiometer signal 
1 is the primary signal, poten- 
tiometer 2  is used  for a plausibility  cross-check. 
1. Potentiometer 1 ground 
2.  Potentiometer 
1 power 
3. Potentiometer 2 ground 
4. Potentiometer 2 power 
5. Potentiometer 1 signal to  ECM 
6. Potentiometer 2 signal to ECM 
If  errors are detected between potentiometer 
1 and  2, the...

130-70 
Fuel Injection 
ECM relay 
-- 
CAUTION- 
Relay positions can vary Be sure  to confirm relay position  by 
identifying  the wiring  in the 
socl(et using  the wiring diagrams 
in ELE Electrical  Wiring Diagrams. 
Working  in right  rear  of engine compartment: 
Release interior ventilation filter cover latch 
(A) and  re- 
move cover. 
Release plastic  locking tab 
(B). 
Rotate  duct inward  (arrow)  to unlock from bulk  head and 
remove  duct. 
Release spring 
loclt (C) to  remove lower filter...