LR3/Disco 3
Idle speed control
Emission control
On Board Diagnostic
Interface with the immobilisation system
The ECM outputs to the following:
Throttle Actuator
Ignition coils (x8)
Oxygen sensor heaters (4)
Fuel injectors (8)
EGR stepper motor
Variable Valve Timing Oil Valves (2)
Purge Valve
Engine Cooling Fan
Fuel pump relay
Starter Relay
Air conditioning condenser fan module
EMS Main Relay
Viscous Fan Control
Generator Control
Power Assisted Steering
Diagnostic Module Tank Leakage (DMTL) (NAS Only)
ECM Connector C0634 Pin Out Table
Pin No
Description
Input/Output
1
CAN
Input/Output
2
CAN
Input/Output
3
Generator monitor
Input
4
UHEGO Bank A ground
-
5
UHEGO Bank B ground
-
6
Not used
-
7
Not used
-
8
Not used
-
9
Not used
-
10
Not used
-
11
CKP ground
-
12
CMP sensor bank A ground
-
13
CMP sensor bank B ground
-
14
UHEGO sensor bank B signal
Input
15
Electronic throttle body ground
-
16
MAF ground
-
17
HEGO ground
-
18
Not used
-
19
Knock sensor 1 ground
-
20
Knock sensor 2 ground
-
21
Knock sensor 3 ground
-
22
Knock sensor 4 ground
-
23
Electronic throttle body 5V supply
Output
24
Fuel pump relay
Output
25
Not used
-
26
Not used
-
