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RSV4 ABS
CAUTION! IF THERE IS A GROUND CONNECTION COMING FROM THE CONTROL UNIT, MAKE
SURE THAT DURING THE TEST THE CONTROL UNIT IS GROUND CONNECTED TO THE CIR-
CUIT.
VOLTAGE check
Check goal: this control is to check if a cable is energised, i.e. if it receives power supply from the
battery or the control unit.
Tester: set the tester on the direct current symbol and place the tester red probe on the cable being
inspected and the black probe on the vehicle ground connection (or on the battery - terminal).
CAUTION
IN CASE OF TEMPORAL MALFUNCTIONING, CARRY OUT ALL DUE CHECKS LOOKING FOR
FAULT BY MOVING SLIGHTLY THE CABLE HARNESS BEING INSPECTED.
Immobiliser
System components
Function
detects the transponder code in the key and sends
it to the instrument panel
Level in electrical circuit diagram:
Immobilizer
Location:
•
on the vehicle: in the ignition switch as-
sembly
•
connector: two-way, black, inside the
bow
Electrical specifications
•
14 Ohm
Pin out
not significant
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING,
CAREFULLY READ THE GENERAL TROUBLESHOOTING
CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGIN-
NING OF THE CHECK AND CONTROL SECTION IN THE
ELECTRICAL SYSTEM CHAPTER.
INSTRUMENT PANEL: ERRORS
DSB 01 Immobilizer fault
•
key code read but not recognised
Error cause
Electrical system
ELE SYS - 147
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