
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

21B-62
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF180
PRESENT
OR
STOREDHYDRAULIC PUMP
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared as present if:
–The pump is switched off for 10 seconds.
–If the oil pressure is less than the starting value.
Special note:
–Fault warning light comes on.
Use the Wiring Diagrams Technical Note for New TWINGO.
Check for + AVC on connection BP36 of component 762.
If there is no + AVC, check fuse F1 30A on component 597.
If the fuse is correct, check the continuity of connection BP36 between components 762 and 597.
If the fuse is not correct, check the insulation to earth of connection BP36 between components 762 and 597.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
wiring: precautions for repair), repair the wiring, otherwise replace it.
Check the connection and condition of the connectors of components 724, 119 and 762.
Also check the connection and condition of the 24-track intermediate connector located on the hydraulic unit.
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 M between component 724 and earth MS-99E,
●Connection code 5AE between components 762 and 724,
●Connection code 5AF between components 119 and 762.
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.
Case of excessive pump operation:
–Internal or external leak in the circuit. For an external leak, locate the leak and repair if necessary. If there is an
internal leak, replace the hydraulic unit (see MR 411, Sequential gearbox, Electro-hydraulic unit: Removal -
Refitting).
If the fault is still present, replace the accumulator (see MR 411, Sequential gearbox, Pressure accumulator:
Removal - Refitting).
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_DF180

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

21B-67
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF232
DF233
DF234
PRESENT
OR
STOREDCOMPUTER
1.DEF : Internal electronic fault
NOTESSpecial note:
–fault warning light comes on.
Use the Wiring Diagrams Technical Note for New TWINGO.
Check the condition and position of the sequential gearbox fuses in the engine compartment and in the
passenger compartment.
Check the connection and condition of the 52-track connector of component 119.
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check for + AVC on connection BP39 and for + after ignition feed on connection AP4 on the 52-track connector
of component 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.
Check the insulation, continuity and the absence of interference resistance on the following connection:
●Connection code N of earths MC - 12B and MC - 12A.
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.
Clear the computer fault memory using command RZ001 "Stored fault(s)".
Switch off the ignition.
Switch on the ignition again and carry out a new check using the diagnostic tool.
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_DF232 / BVRJH1_V04_DF233 / BVRJH1_V04_DF234

21B-68
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF251
PRESENT
OR
STOREDGEARBOX INPUT SPEED
1.DEF : Signal incoherence
2.DEF : Signal Absent
NOTESPriorities when dealing with a number of faults:
If fault DF254 Clutch temperature 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:
The fault can only be cleared from the memory using the diagnostic tool after a
road test where the vehicle speed signal is detected by the computer.
If fault DF254 Clutch temperature is present, the buzzer may sound.
Use the Wiring Diagrams Technical Note for New TWINGO.
Check the connection and condition of the connectors of components 119 and 1060.
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 that the sensor is correctly fitted on the sequential gearbox.
Engine running at idle speed and vehicle stopped, check the gearbox input engine speed sensor and the engine
speed sensor are operating correctly:
●PR006 Engine speed,
●PR014 "Gearbox input speed".
Check the continuity and insulation of the following connections:
●Connection code 5DA,
●Connection code 5DB,
between components 1060 and 119.
If the connections are faulty, check the connection and condition of intermediate connector R235 located on the
hydraulic unit.
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.
Check that the gearbox input speed sensor resistance between connections 5DA and 5DB of the sensor are
equal to 470 Ω ± 94 Ω.
If the fault is still present, replace the sensor (see MR 411, 21B, Sequential gearbox, sequential gearbox
engine speed sensor: Removal - Refitting).
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_DF251

21B-69
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF252
PRESENT
OR
STOREDPUMP RELAY
1.DEF : Relay jammed
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after a road test.
Special note:
–all gear changes are inhibited,
–fault warning light comes on,
–automatic mode is inhibited.
Use the Wiring Diagrams Technical Note for New TWINGO.
After switching on the ignition, check that the PR018 “Hydraulic pressure” is between 40 bar and 50 bar.If this
is not the case, apply the interpretation for fault DF166 “Pressure sensor circuit”.
If the checks described in DF166 "Pressure sensor circuit" are correct and that PR018 "Hydraulic pressure"
indicates a lower pressure than that measured previously following activation of the pump motor, replace the
pressure sensor (see MR 411, 21B, Sequential gearbox, Solenoid valve unit: Removal - Refitting).
Disconnect the relay and check that there is no continuity between connections BP36 and 5AE of component
762.
Replace the relay if it is not correct.
Check the continuity and insulation of the following connection:
●Connection code 5AE,
Between components 724 and 762.
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.
Check for the absence of + 12 V on connection 5AE of component 762.
Check the continuity and insulation of the following connection:
●Connection code 5AF,
Between components 119 and 762.
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_DF252

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

21B-77
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF265
PRESENT
OR
STOREDCOMPUTER
1.DEF : Main relay fault (integrated in the computer)
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after a road test.
Special note:
–all gear changes are inhibited,
–automatic mode is inhibited.
Check the condition and connection of the earths on both connections N of component 119.
Check the condition and position of the sequential gearbox fuses in the engine compartment and in the
passenger compartment.
Check the condition and connection of the connectors for component 119.
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check for + AVC on connection BP39 of component 119.
If the + AVC is absent, check the insulation to earth and the continuity of the following connection:
●Connection code BP39,
between components 119 and 1016.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
wiring: precautions for repair), repair the wiring, otherwise replace it.
Check for + after ignition feed on connection AP4 of component 119.
If the + after ignition feed is absent, check the insulation to earth and the continuity of the following
connection:
●Connection code AP4,
between components 119 and 1016.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
wiring: precautions for repair), repair the wiring, otherwise replace it.
Clear the computer fault memory using command RZ001 "Stored fault(s)", exit the fault finding and switch off the
ignition.
Carry out another check using the diagnostic tool.
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_DF265