Freelander System Description and Operation
AUTOMATIC GEARBOX - JATCO
DESCRIPTION AND OPERATION
44-37
Diagnostics
A diagnostic socket allows the exchange of information between the EAT ECU and TestBook/T4. The diagnostic
socket is located behind the centre console, in the passenger footwell.
1 Diagnostic socket
The diagnostic socket is connected to the EAT ECU on an ISO 9141 K Line. The system uses a 'P' code diagnostic
strategy and can record faults relating to gearbox operation. The codes can be retrieved using TestBook/T4 or any
diagnostic tool using Keyword 2000 protocol.
Diagnostic Trouble Codes (DTC)
The following table lists P codes, affected components and fault description.
The diagnostics related to diagnostic trouble codes introduced by ECD3 are disabled on vehicles built prior to the
ECD3 compliance date.
JATCO P Code Table
P Code
Applicabili
ty
Component
Correct Operation /
Value
Description of Fault and
Rectification Action
P0702
All
GND return (sensor earth)
–
Short circuit to battery –
Check wiring and
connections
P0705
All
Selector and inhibitor switch
input
Selected range 12V
Other ranges 0V
Multiple signal or No signal
– Check wiring and
connections – Renew
turbine sensor
P0710
All
ATF temperature sensor
Refer to Fluid
Temperature Sensor –
Fluid temperature sensor
resistance values table
Signal out of range – Check
wiring and connections –
Check sensor resistance –
Renew transmission
harness assembly/sensor