Page 42 of 138

21B-42
MR-413-X44-21B000$413.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No.: 04
21B
DF076
PRESENT
OR
STOREDCLUTCH CONTROL
1.DEF: Clutch inconsistency upon gear change
NOTESPriorities when dealing with a number of faults:
In the event of a number of faults, deal with faults DF068 Clutch position sensor
circuit, DF071 Clutch solenoid valve circuit and DF254 Clutch temperature.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present following harsh use of the clutch (prolonged hold on a
hill, PR095 Clutch temperature ≥ 248˚C).
Special notes:
Fault warning light comes on,
When PR095 Clutch temperature ≥ 248˚C, the buzzer is activated.
Check that the clutch is not slipping by performing a road test, driving with a low load and then up or down an
incline.
If the clutch slips, pull away several times with a low load and check if PR096 Clutch progressivity changes.
If the fault is still present, replace the clutch (see MR 411 Mechanical, 21B, Sequential gearbox).
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_DF076
Page 43 of 138

21B-43
MR-413-X44-21B000$413.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No.: 04
21B
DF077
PRESENT
OR
STOREDGEARBOX CONTROL
1.DEF: Impossible to engage or disengage a gear
NOTESPriorities when dealing with a number of faults:
If DF069 Selection position sensor circuit and/or DF070 Engagement position
sensor circuit is stored, deal with them first.
Special notes:
Fault warning light comes on.
Improper use of lever when the vehicle is stationary may lead to this fault.
Check that the selector lever is correctly clipped onto the hydraulic unit by looking through the inspection flap
(see MR 411 Mechanical, 21B, Sequential gearbox).
Check if the water in the gearbox oil is due to condensation.
Replace the oil if necessary (see MR 411 Mechanical, 21B, Sequential gearbox, Electric pump assembly oil:
Specifications).
If it is difficult to select gears, especially reverse gear, apply the interpretation of PR018 Hydraulic pressure.
Clear the computer fault memory.
Carry out the programming procedure for the Hydraulic unit - gearbox kit (without clutch) or Clutch or
gearbox + Clutch (see Replacement of components).
If the fault is still present, this means there is an internal mechanical fault with the gearbox, contact Techline.
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_DF077
Page 63 of 138

21B-63
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF181
PRESENT
OR
STOREDGEAR SELECTION IMPOSSIBLE
1.DEF : Impossible to select gear
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after an engine start attempt and an attempt to engage a
gear.
Special note:
–Fault warning light comes on.
–Neutral engaged immediately.
Check that there are no engagement or selection sensor faults.
If faults associated with these components are present, deal with these first.
Check that the selection control lever is correctly clipped to the hydraulic unit (see MR 411, 21B, Sequential
gearbox).
Carry out the necessary repairs.
Check that there is no water in the sequential gearbox oil.
Repair if necessary.
Clear the computer fault memory using command RZ001 "Stored fault(s)".
Carry out the programming procedure for the "Hydraulic unit - gearbox kit (without
clutch) or Clutch or gearbox + Clutch" (see "Replacement of components").
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_DF181
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 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 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
Page 73 of 138
21B-73
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF258
PRESENT
OR
STOREDRAPID LOSS OF HYDRAULIC PRESSURE
1.DEF : Rapid loss of pressure
NOTESSpecial note:
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_DF258
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