Description - engine management (ENGINE MANAGEMENT SYSTEM - V8) (page 34 of 43)

ENGINE MANAGEMENT SYSTEM - V8

DESCRIPTION AND OPERATION 18-2-39

Should a malfunction of the component occur the following fault codes may be evident and can be retrieved by 
TestBook.

Evaporative emissions
Refer to Emissions section for description of the evaporative emissions system components.
 

 + 

 EMISSION CONTROL - V8, DESCRIPTION AND OPERATION, Evaporative Emission Control System.

Secondary air injection (NAS only)
Refer to Emissions section for description of the secondary air injection system components.
 

 + 

 EMISSION CONTROL - V8, DESCRIPTION AND OPERATION, Secondary Air Injection System.

Fuel tank pressure sensor (NAS only)
Refer to Fuel Delivery section for description of the fuel system components.
 

 + 

 FUEL DELIVERY SYSTEM - V8, DESCRIPTION AND OPERATION, Description. 

Refer to Emissions section for description of the fuel tank pressure sensor.
 

 + 

 EMISSION CONTROL - V8, DESCRIPTION AND OPERATION, Evaporative Emission Control System.

P Code

J2012 Description

Land Rover Description

P1230

Fuel pump relay malfunction

Fuel pump relay open circuit - not the fuel pump

P1231

Fuel pump relay circuit low

Fuel pump relay short circuit to battery supply - not the 
fuel pump

P1232

Fuel pump relay circuit high

Fuel pump relay short circuit to earth - not the fuel pump