Range Rover P38
19
FUEL SYSTEM
NEW RANGE ROVER
34
DESCRIPTION AND OPERATION
Connector 2 (C0635):
This connector contains 24 pins and is primarily used for the Heated Oxygen (HO
2
S) Sensor’s control and earth.
An output to a heater circuit in each HO
2
S sensor is also required; this is to assist in heating the tip of the sensors
to enable closed loop fuelling to be implemented quickly after cold starting.
ECM pin details for Connector C0635:
Pin No.
Description
Input/Output
Voltage
1
HO
2
S sensor heater RH bank -
downstream
Output drive
PWM 12 - 0V
2
Not used
-
-
3
Not used
-
-
4
Not used
-
-
5
Not used
-
-
6
Not used
-
-
7
HO
2
S sensor heater LH bank -
downstream
Output drive
PWM 12 - 0V
8
HO
2
S sensor RH bank - downstream
Ground signal
0V
9
HO
2
S sensor LH bank - upstream
Ground signal
0V
10
HO
2
S sensor RH bank - upstream
Ground signal
0V
11
HO
2
S sensor LH bank - downstream
Ground signal
0V
12
Not used
-
-
13
HO
2
S sensor heater RH bank -
upstream
Output drive
PWM 12 - 0V
14
HO
2
S sensor RH bank - downstream
Input signal
Analogue 0 -
5V
15
HO
2
S sensor LH bank - upstream
Input signal
Analogue 0 -
5V
16
HO
2
S sensor RH bank - upstream
Input signal
Analogue 0 -
5V
17
HO
2
S sensor LH bank - downstream
Input signal
Analogue 0 -
5V
18
Fuel pump relay
Output drive
Switch to
ground
19
HO
2
S sensor heater LH bank - upstream
Output drive
PWM 12 - 0V
20
Not used
-
-
21
Not used
-
-
22
Not used
-
-
23
Main relay output
Output drive
Switch to
ground
24
Not used
-
-
