82A-2V1 MR-376-X76-82A000$010.mif
82A
SVT
Vdiag No.: 04
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding method applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type
Fault finding procedures (this document):
– Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu - Schéma.
Type of diagnostic tools
– CLIP + multiplex line sensor
Special tooling required
3. SAFETY INSTRUCTIONS
Safety rules must be observed during any work on a component to prevent any material damage or personal injury:
– check the battery voltage to avoid incorrect operation of computer functions,
– use the proper tools.
– It is forbidden to carry out a road test with the diagnostic tool in dialogue with the ECU because the ABS
and Electronic Brake Distribution functions are deactivated. Braking pressure is identical on both axles of
the vehicle (risk of a spin under heavy braking).
*VLL — Very Long LifeVehicle(s): LOGAN, SANDERO, DUSTER,
MEGANE II ph1 and ph2, SCENIC II, MASTER II
ph2 and ph3, THALIA 2/SYMBOL 2, CLIO II F6,
KANGOO VLL*Computer name: SVT
Function concerned: Anti-Theft Tracking UnitVdiag No.:04
Special tooling required
Diagnostic tool
Multimeter
Elé. 1681 Universal bornier
SVT_V04_PRELI
ENGINE IMMOBILISER
Fault finding – Introduction
82A-31
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the faults from the computer memory using command RZ001 Fault memory.
V1 MR-376-X76-82A000$110.mif
82A
SVT
Vdiag No.: 04
ALP1 NO DIALOGUE WITH THE COMPUTER
NOTESSwitch on the vehicle + after ignition feed.
Use the Wiring Diagrams Technical Note for LOGAN, SANDERO, DUSTER,
MEGANE II ph1 and ph2, SCENIC II, MASTER II ph2 and ph3, THALIA 2/SYMBOL
2, CLIO II F6, KANGOO VLL.
Ensure that the diagnostic tool is not the cause of the fault by using it to establish dialogue with a
computer on another vehicle. If the diagnostic tool is not causing the fault and dialogue cannot be established
with any other computer on the same vehicle, it may be that a faulty computer is disrupting the fault finding line.
Use a process of successive disconnections to locate this computer.
Check the battery voltage, component code 107, and perform the necessary operations to obtain the correct
voltage (12 V < X < 15 V).
Check the condition of the fuses in the passenger compartment fuse and relay box, component code 260 for
MEGANE II ph1 and ph2, SCENIC II, KANGOO VLL or component code 1016 for LOGAN, SANDERO, DUSTER,
MASTER II ph2 and ph3, THALIA 2/SYMBOL 2, CLIO II F6.
Check the connection of the anti-theft tracking unit connector, component code 2186.
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
SVT_V04_ALP001
ENGINE IMMOBILISER
Fault finding – Fault finding chart
