Land Rover Workshop Service and Repair Manuals

GENERAL 

The V6 4.0 Liter engine is controlled by a Engine Control Module (ECM) manufactured by DENSO. The Engine 
Management System (EMS) controls the following: 
 

Engine fuelling  
Ignition timing  
Closed loop fuelling  
Knock control  
Idle speed control  
Emission control  
On Board Diagnostic  
Interface with the immobilisation system  
Cruise control  

ENGINE CONTROL MODULE (ECM) 

 
The ECM is located in the E-Box in the plenum area on the passenger side of the engine compartment attached to the 
bulkhead. 
 
Inputs  
 
The ECM has the following inputs: 
 

Central Junction Box  
Engine Coolant Temperature  
Brake Switch  
Manifold Absolute Pressure  
Accelerator Pedal Position 1  
Accelerator Pedal Position 2  
Throttle Position 1  
Throttle Position 2  

10

 -

Electric park brake control module

11

 -

Automatic temperature control module (ATCM)

12

 -

Universal Heated Exhaust Gas Oxygen sensor (UHEGO) and Heated Exhaust Gas Oxygen sensor 
(HEGO)

13

 -

Ignition coils

14

 -

Universal Heated Exhaust Gas Oxygen sensor (UHEGO) and Heated Exhaust Gas Oxygen sensor 
(HEGO)

15

 -

Generator

16

 -

ECM

17

 -

EGR valve/ differential pressure sensor

18

 -

Clock spring

19

 -

Cruise control switches

20

 -

Electric throttle body