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-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
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
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-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
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
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