INJECTION
Injection fault warning light
17
PRINCIPLE FOR ILLUMINATION OF INJECTION FAULT WARNING LIGHT ON INSTRUMENT PANEL
• Vehicles not equipped with the immobiliser function:
When the ignition is switched on, the warning light illuminates constantly for 3 seconds , then extin-
guishes.
• Vehicles with immobiliser function deactivated:
When the ignition is switched on, the injection warning light illuminates constantly for 3 seconds and
then extinguishes.
When the doors are unlocked, the red immobiliser light, which was previously flashing, extin-
guishes.When ignition is switched on, it illuminates for 3 seconds , then extinguishes.
• Vehicles with immobiliser function activated:
When the ignition is switched on, the computer does not recognise the code, and stops the engine from
starting. The injection warning light remains illuminated for 3 seconds and then extinguishes.
Before the ignition is switched on, the red immobiliser light flashes. On switching the ignition on, it
flashes more rapidly.
If a fault is detected in the immobiliser system whilst the engine is running, the injection warning light
flashes in the engine speed range between idle speed and 1 500 rpm approximately .
• Fault in a component of the injection system
The warning light is illuminated if a fault has been detected in:
- the pressure sensor,
- the vehicle speed,
- the throttle potentiometer,
- the idle speed regulation stepping motor.
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INJECTION
Immobiliser function
17
This vehicle is fitted with a 2nd generation immobiliser system.
REPLACING THE INJECTION COMPUTER
All computers are supplied uncoded, but are capable of being programmed with a code.
When replacing the computer, the vehicle code must be programmed in and then a check must be made to
ensure that the immobiliser system is operational.
To do this, it is sufficient to carry out the following operations:
- turn the ignition on for a few seconds and turn it off again,
- remove the key to guarantee the immobiliser function.
CHECKING THE IMMOBILISER FUNCTION
Remove the key from the ignition switch. After 10 seconds the red immobiliser warning light will flash.
For special notes on testing an injection computer (test part), refer to section 82: "Immobiliser".
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INJECTION
Computer configuration depending on gearbox type17
The screen will display :
COMPUTER CONFIGURATION DEPENDING ON GEARBOX TYPE (MANUAL GEARBOX OR AUTOMATIC
TRANSMISSION)
Each time the injection computer is replaced, it must be programmed with the type of gearbox (manual or
automatic) which is fitted in the vehicle. The computers are designed to function with either type of gearbox.
Method for configuring the computer
Connect the
XR25
Select S8
Switch on the ignition
Enter D13 then
For vehicles fitted with manual gearbox :
Enter G50* 2*
For vehicles fitted with automatic transmission :
Enter G50* 1*
if the configuration has not been made
To ensure that the computer has memorised the data correctly, switch the ignition back on , using fault fin-
ding fiche n° 27; the fault bargraph
20 LH should be extinguished, whilst the 19 LH or RH status bargraph
should be illuminated.
then if the configuration is complete
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