Range Rover P38
AIR CONDITIONING
13
DESCRIPTION AND OPERATION
Connector/
Pin No.
Description
Input/Output
C261 (up to
99MY)
C1597 (from
99MY)
1
RH temperature servo feedback reference voltage (-)
Input
2
Distribution servo feedback reference voltage (-)
Input
3
Not used
-
4
Distribution servo feedback reference voltage (+)
Output
5
RH temperature servo feedback reference voltage (+)
Output
6
Distribution servo voltage (+/-)
Input/Output
7
RH temperature servo feedback
Input
8
LH temperature servo feedback
Input
9
RH temperature servo voltage (+/-)
Input/Output
10
RH temperature servo voltage (+/-)
Input/Output
11
LH temperature servo voltage (+/-)
Input/Output
12
LH temperature servo voltage (+/-)
Input/Output
13
LH temperature servo feedback reference voltage (-)
Input
14
LH temperature servo feedback reference voltage (+)
Output
15
Distribution servo feedback
Input
16
Distribution servo voltage (+/-)
Input/Output
In-car temperature sensor
The in-car temperature sensor provides the ATC ECU
with an input of interior air temperature. The sensor is
integrated into the inlet of an electric fan, which is
installed behind a grille in the centre of the fascia,
immediately below the clock. The fan runs
continuously, while the A/C system is on, to draw air
through the grille and across the sensor.
Ambient air temperature sensor
The ambient temperature sensor provides the ATC
ECU with an input of external air temperature. Up to
VIN 381430, the sensor is installed in the LH air inlet
housing. From VIN 381431, the sensor is installed in a
bracket attached to the LH chassis rail, behind the
front bumper and immediately in front of the
condenser.
