Page 65 of 138

21B-65
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF187
PRESENT
OR
STOREDPROGRAMMING
1.DEF : Programming not carried out or inconsistent
2.DEF : Values outside the limits
3.DEF : Configuration/Initialisation
NOTESSpecial note:
–Fault warning light comes on.
–Impossible to start the engine.
Program the gears with command VP008 Program selection/engagement ranges.
Check that the solenoid valves are operating correctly using commands AC015 Engagement solenoid valves
and AC016 Selection solenoid valves.
Check the correct positioning of the actuators.
Repair if necessary (see MR 411, 21B, Sequential gearbox, Actuator module: Removal - Refitting).
If the fault is still present, apply the interpretation of faults DF072 Engagement solenoid valve 1 circuit, DF073
Engagement solenoid valve 2 circuit, DF074 Selection solenoid valve 1 circuit and DF075 Selection
solenoid valve 2 circuit.
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_DF187
Page 66 of 138
21B-66
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF188
PRESENT
OR
STOREDSYSTEM OPERATION
NOTESPriorities when dealing with a number of faults:
Apply the interpretation of other faults first.
Special note:
–warning light comes on,
–neutral engaged immediately,
–engine stops immediately.
This fault appears following an electronic and mechanical inconsistency on the sequential system.
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_DF188
Page 67 of 138

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
Page 68 of 138

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
Page 69 of 138

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
Page 70 of 138

21B-70
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF254
PRESENT
OR
STOREDCLUTCH TEMPERATURE
1.DEF : Clutch overheating
NOTESPriorities when dealing with a number of faults:
Deal with other faults declared present first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present when the clutch is used under severe conditions
(prolonged holding on a hill).
Special note:
–Instrument panel displays: “Sequential gearbox overheating”
–Fault warning light comes on.
–An engine speed wire fault or incorrect multiplex line value (speed equals 0) may
increase the occurrence of this fault.
Clear the stored fault and check that the clutch is not slipping by performing a road test, pulling away with a low
load then up or down an incline.
If the clutch slips, proceed in the following way:
–Pull away several times with low load and check parameter PR096 Clutch progressivity.
–If the fault is still present, replace the clutch.
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_DF254
Page 71 of 138

21B-71
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF256
PRESENT
OR
STOREDERRATIC GEAR JUMPING
1.DEF : Erratic gear jumping
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the previous gear has been engaged.
Special note:
Fault warning light comes on following erratic gear disengagement and after the
previous gear has been engaged.
Check that there are no engagement or selection sensor faults.
Repair if necessary.
Check that the selection control lever is correctly clipped onto the hydraulic unit.
Carry out the necessary repairs (see MR 411 Mechanical, 21B, Sequential gearbox, Electro-hydraulic unit,
Removal - Refitting).
Check that there is no water in the gearbox oil.
Repair if necessary.
Clear the faults using command RZ001 "Stored fault(s)".
Reprogram VP008 Program selection/engagement ranges.
Check there are no other faults by carrying out a road test.
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_DF256
Page 72 of 138
21B-72
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF257
PRESENT
OR
STOREDSLOW LOSS OF HYDRAULIC PRESSURE
1.DEF : Slow loss of pressure
NOTESSpecial note:
Fault warning light comes on.
Small internal leak: replace the hydraulic unit or clutch solenoid valve (see MR 411 Mechanical, 21B, Sequential
gearbox, Electro-hydraulic unit: Removal - Refitting).
Slow external leak: repair or replace the component concerned (see Replacement of components).
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_DF257