21B-45
MR-413-X44-21B000$413.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No.: 04
21B
DF080
PRESENT
OR
STOREDBATTERY VOLTAGE
1.DEF: Battery undervoltage
NOTESSpecial notes:
–Fault warning light comes on.
Use the Wiring Diagrams Technical Note for New TWINGO.
Check that the sequential gearbox supply fuse is correctly positioned and in good condition in the passenger
compartment fuse box.
Measure the battery voltage and check the charging circuit (see Technical Note 6014A, Charging circuit
check).
Repair if necessary.
Ensure that the battery and its connections are in good condition (condition and tightness of the terminals).
Check the engine earths on the vehicle.
Repair if necessary.
Check the connection and condition of the connectors of components 1016 and 119.
If the connectors are faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the connectors; otherwise, replace the wiring.
Check the continuity and insulation of the connections between:
●Connection code BP39,
●Connection code AP4,
between components 119 and 1016.
●The two connections N between component 119 and the chassis earths MC-12A and MC-12B.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_DF080
