L322 Range Rover System Description and Operation
AUTOMATIC TRANSMISSION – ZF 5HP24
DESCRIPTION AND OPERATION 44-2-45
Main Relay
The main relay is located inside the E-box and is identified by its blue colour. The relay is connected directly from the
battery via a 100 Amp remote fuse. The relay coil is controlled by the ECM which provides a ground for the coil when
the relay is energised.
When energised, the main relay supplies battery voltage, via fuse 1 in the engine compartment fusebox, to the EAT
ECU.
Diagnostics
The diagnostic socket is located in the fascia, in the driver's side stowage tray. The socket is secured in the fascia
panel and is protected by a hinged cover.
18 to 20
Not used
–
21
Power supply for SV's
Output
22
Temperature sensor signal
Input
23
Input shaft speed sensor supply
Output
24
Inhibitor switch contacts L2
Input
25
Not used
–
26
Ground for SV 2 solenoid
Input
27
Ground for EPRS 2
Input
28
Ground for EPRS 1
Input
29 and 30
Not used
–
31
Ignition power supply to inhibitor switch
Output
32
Not used
–
33
Input shaft speed sensor signal
Input
34
Inhibitor switch contacts L1
Input
35
Not used
–
36
CAN bus high
Input/Output
37
CAN bus low
Input/Output
38
Ground for SV 1
Input
39 and 40
Not used
–