ECM (page 3 of 4)

ENGINE MANAGEMENT SYSTEM - SIEMENS

DESCRIPTION AND OPERATION 18-4-11

Connector C0603 Pin Details

Connector C0604 Pin Details

Connector C0606 Pin Details

Pin No.

Description

Input/Output

1

Ignition sense

Input

2 and 3

Not used

–

4

Electronic earth

–

5

Fuel injector earth

–

6

Power stage earth

–

7

Battery power supply

Input

8

Ignition power supply

Input

9

Ignition power supply

Input

Pin No.

Description

Input/Output

1

LH bank front HO2S heater drive

Output

2 to 6

Not used

–

7

LH bank rear HO2S heater drive

Output

8 to 12

Not used

–

13

RH bank front HO2S heater drive

Output

14

LH bank front HO2S signal

Input

15

RH bank front HO2S signal

Input

16

LH bank rear HO2S signal

Input

17

Not used

–

18

RH bank rear HO2S signal

Input

19

RH bank rear HO2S heater drive

Output

20

LH bank front HO2S earth

–

21

RH bank front HO2S earth

–

22

LH bank rear HO2S earth

–

23

Main relay coil

Output

24

RH bank rear HO2S earth

–

Pin No.

Description

Input/Output

1

MAF sensor signal

Input

2

Not used

–

3

Vacuum enhancer solenoid valve – Up to 2003 model year

Output

4

Not used

–

5

CMP sensor signal

Input

6

Not used

–

7

Throttle feedback potentiometer supply

Output

8

CKP sensor signal

Input

9

Not used

–

10

Throttle feedback potentiometer 2 signal

Input

11

VIS balance valve motor drive

Output

12 to 16

Not used

–

17

MAF sensor earth

–

18

CMP sensor earth

–

19

Throttle feedback potentiometer 1 signal

Input

20

Throttle feedback potentiometer earth

–

21

CKP sensor earth

–