300Tdi Discovery
86
ELECTRICAL
4
DESCRIPTION AND OPERATION
BUILT IN TEST PROCEDURE
The built in test procedure is accessed as follows:
1. Starting conditions: ignition off, doors unlocked,
bonnet [hood] switch depressed.
2. Carry out instructions 3 to 7 within 8 seconds.
3. Release bonnet [hood] switch.
4. Switch ignition ON.
5. Lock doors.
6. Switch ignition OFF.
7. Switch ignition ON.
If alarm is correctly accessed, horn will sound and
LED will flash. The following checks can be made:
8. Open and close any door or tailgate - LED will
light.
9. Depress bonnet [hood] switch - hazards will
flash.
10. Check engine cranking is disabled. Do not turn
off ignition.
11. Check ultrasonic by operating handset, LED will
emit one 5 second flash, and will flash if interior
is disturbed.
NOTE: If ECU is new born mode any
handset of the right frequency will work. If
not an initialised handset is required see
Handset Initialisation.
12. Turn OFF ignition or press handset to end test
procedure. Horn will sound as before to indicate
end of test mode.
