Page 55 of 138
21B-55
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF146
PRESENT
OR
STOREDTORQUE NO REDUCTION MULTIPLEX SIGNAL
1.DEF : Communication disrupted
NOTESPriorities when dealing with a number of faults:
If fault DF062 Multiplex line fault is present or stored, deal with it first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after the computer fault memory has been cleared, the
ignition has been switched off and on again and the engine has been started.
Run fault finding on the injection system (see 17B, Petrol injection).
Run a multiplex network test (see 88B, Multiplex).
If no faults are present or stored, contact Techline.
AFTER REPAIRDeal with any faults detected by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_DF146
Page 56 of 138
21B-56
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF147
PRESENT
OR
STOREDINVALID ANTICIPATED TORQUE MULTIPLEX SIGNAL
1.DEF : Communication disrupted
NOTESPriorities when dealing with a number of faults:
If fault DF062 Multiplex line fault is present or stored, deal with it first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after the computer fault memory has been cleared, the
ignition has been switched off and on again and the engine has been started.
Run fault finding on the injection system (see 17B, Petrol injection).
Run a multiplex network test (see 88B, Multiplex).
If no faults are present or stored, contact Techline.
AFTER REPAIRDeal with any faults detected by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_DF147
Page 57 of 138

21B-57
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF148
PRESENT
OR
STOREDSECONDARY BRAKE CONTACT MULTIPLEX SIGNAL
1.DEF : Communication disrupted
2.DEF : Inconsistent signal
NOTESPriorities when dealing with a number of faults:
If fault DF062 Multiplex line fault is present or stored, deal with it first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after the computer fault memory has been cleared, the
ignition has been switched off and on again and the engine has been started.
Use the Wiring Diagrams Technical Note for New TWINGO.
Run a multiplex network test (see 88B, Multiplex).
Run fault finding on the injection system (see 17B, Petrol injection).
Check for the presence, condition and correct positioning of the 15A fuse for the brake lights in the passenger
compartment fuse box.
Check that the indicator light switches off quickly as soon as the brake pedal moves.
Check the connection and condition of the connectors of components 120 and 160.
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 adjustment of the brake light switch on the pedals.
Check for continuity with the pedal depressed, between connections AP10 (track 2) and 65A of component 160.
Replace the switch if necessary (see MR 411 Mechanical systems, 83D Cruise control, Brake light switch:
Removal - Refitting).
Check there is no continuity with the pedal released, between connections AP10 (track 2) and 65A of
component 160.
Replace the switch if necessary (see MR 411 Mechanical systems, 83D Cruise control, Brake light switch:
Removal - Refitting).
Ensure the insulation to + 12 V, to earth and the continuity of the following connections:
●Connection code 3MT,
●Connection code 3MS,
between components 120 and 119.
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 detected by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_DF148
Page 58 of 138

21B-58
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF150
PRESENT
OR
STOREDINSTRUMENT PANEL MULTIPLEX CONNECTION
1.DEF : No signal
NOTESPriorities when dealing with a number of faults:
If fault DF062 Multiplex line fault is present or stored, deal with it first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after the computer fault memory has been cleared, the
ignition has been switched off and on again and the engine has been started.
Use the Wiring Diagrams Technical Note for New TWINGO.
Check the connection and condition of the connectors of components 120, 119 and 247.
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.
Run a multiplex network test (see 88B, Multiplex).
If the multiplex network is correct, perform a fault finding of the instrument panel (see 83A, Instrument panel).
AFTER REPAIRDeal with any faults detected by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_DF150
Page 61 of 138

21B-61
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
* FR: frontDF175
DF176
PRESENT
OR
STORED
FRONT LEFT-HAND WHEEL SPEED MULTIPLEX SIGNAL
FRONT RIGHT-HAND WHEEL SPEED MULTIPLEX SIGNAL
1.DEF : Communication disrupted
NOTESPriorities when dealing with a number of faults:
If fault DF062 Multiplex line fault is present or stored, deal with it first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after a road test.
Special note:
–“FR left-hand wheel speed multiplex signal” = Front left-hand wheel speed
multiplex signal.
–“FR right-hand wheel speed multiplex signal” = Front right-hand wheel speed
multiplex signal.
Use the Wiring Diagrams Technical Note for New TWINGO.
Run a multiplex network test (see 88B, Multiplex).
Check the connection and condition of the connectors of components 120, 1094 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.
Run fault finding on the ABS computer (see 38C, Anti-lock braking system).
AFTER REPAIRDeal with any faults detected by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_DF175 / BVRJH1_V04_DF176
Page 64 of 138

21B-64
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF185
PRESENT
OR
STOREDNO ABS/ESP MULTIPLEX SIGNAL
1.DEF : No signal
NOTESPriorities when dealing with a number of faults:
If fault DF062 Multiplex line fault is present or stored, deal with it first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after the computer fault memory has been cleared, the
ignition has been switched off and on again and the engine has been started.
Use the Wiring Diagrams Technical Note for New TWINGO.
Perform a multiplex network test (see 88B, Multiplex).
Check the connection and condition of the connectors of components 120, 119 and 1094.
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.
If the fault is still present, run fault finding on the ABS/ESP system (see 38C, Anti-lock braking system).
AFTER REPAIRDeal with any faults detected by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_DF185
Page 76 of 138

21B-76
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF263
PRESENT
OR
STOREDINSTANTANEOUS MAXIMUM TORQUE MULTIPLEX SIGNAL
1.DEF : Communication disrupted
NOTESPriorities when dealing with a number of faults:
If fault DF062 Multiplex line fault is present or stored, deal with it first.
Run a check of the injection system (see 17B, Petrol injection).
Check the condition and connection of the connectors of components 119 and 120.
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 following connections:
●Connection code 3MS,
●Connection code 3MT,
between components 119 and 120.
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.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults detected by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_DF263
Page 79 of 138

21B-79
MR-413-X44-21B000$590.mif
V2
21B
SEQUENTIAL GEARBOX
Fault finding - Status summary table
*signal: signalTool status Diagnostic tool title
ET003Brake light switch (opening)
ET004Brake light switch (closure)
ET012Gear lever position
ET013Gear engaged
ET027Driver's door open
ET028Handbrake
ET030Accelerator pedal position
ET043Lever switch no. 0
ET044Lever switch no. 1
ET045Lever switch no. 2
ET046Lever switch no. 3
ET048Driver's door statuses detection
ET049Handbrake position recognition
ET053Vehicle speed signal* detection
ET054Pump relay control
ET055Starter relay control
ET056Clutch solenoid valve control
ET057Engagement solenoid valve 1 control
ET058Engagement solenoid valve 2 control
ET059Selection solenoid valve 1 control
ET060Selection solenoid valve 2 control
ET061Gear programming
ET062Biting point programming
ET063Solenoid valve zero point programming
ET064Clutch position programming
ET065Progressivity programming
ET086Downshift request
Vdiag No: 04
MR-413-X44-21B000$590.mif