21B-41
MR-413-X44-21B000$413.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No.: 04
21B
DF075
PRESENT
OR
STOREDSELECTION SOLENOID VALVE 2 CIRCUIT
CO.0: Open circuit or short circuit to earth
CC.1: Short circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
–engagement of any of the gears,
–the brake pedal is depressed,
–the engine is stopped.
Special notes:
–warning light comes on and automatic mode deactivated,
–if C0.0: only gear changes 1, 2, 3, 4 and reverse are authorised,
–if CC.1: only selection of reverse gear is authorised.
Use the Wiring Diagrams Technical Note for New TWINGO.
Check the connection and condition of the connectors of components 1054 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.
Check the continuity and insulation to earth and to + 12 V on the following connections:
●Connection code 5FD,
between components 119 and 1054.
●Connection code N,
between component 1054 and chassis earth N.
If the connections are faulty, check the connection and condition of the 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.
Using the diagnostic tool, run command AC016 Selection solenoid valves and check that the selection is made
correctly by carrying out a listening test.
If the selection is not made correctly, replace selection solenoid valve 2 (see MR 411 Mechanical, 21B,
Sequential gearbox, Solenoid valves: Removal - Refitting).
If the fault is still present, contact the 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_DF075
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
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
21B-44
MR-413-X44-21B000$413.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No.: 04
21B
DF078
PRESENT
OR
STOREDHYDRAULIC CONTROL
1.DEF: Signal outside lower limit
NOTESPriorities when dealing with a number of faults:
Apply the interpretation of other faults first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present during a road test.
Special note:
Improper use of the gear lever when stationary may lead to this fault.
Using the diagnostic tool, via parameter PR018 Hydraulic pressure, check that the pump is activated at 40 bar
and stops at 50 bar.
Pressure level below a pressure threshold.
Fault linked to a lack of oil (internal or external leak) or to a pump failure.
Repair or replace if necessary (see MR 411 Mechanical, 21B, Sequential gearbox, Electric pump assembly
oil: Specifications).
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 Mechanical, 21B, Sequential gearbox,
Electrohydraulic unit: Removal - Refitting).
If the fault is still present, replace the accumulator (see MR 411 Mechanical, 21B, Sequential gearbox,
Pressure accumulator: Removal - Refitting).
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_DF078
21B-46
MR-413-X44-21B000$413.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No.: 04
21B
DF082
PRESENT
OR
STOREDBRAKE LIGHTS SWITCH CIRCUIT
1.DEF: Signal incoherent
NOTESSpecial note:
Indicator light comes on if the fault is present when driving twice in succession.
Use the Wiring Diagrams Technical Note for New TWINGO.
Check for the presence, condition and correct positioning of the 15A fuse for the brake lights in the passenger
compartment fuse box.
Check the connection and condition of the connectors of components 160 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.
Check the fitting and adjustment of component 160 on the pedal assembly.
Pedal depressed:
Check the continuity between connections AP10 (track 2) and 65A of component 160.
Check the insulation between connections AP10 (track 4) and 5A of component 160.
If the checks are incorrect, replace the switch (see MR 411 Mechanical, 83D Cruise control, Brake light
switch: Removal - Refitting).
Pedal released:
Check the insulation between connections AP10 (track 2) and 65A of component 160.
Check the insulation between connections AP10 (track 4) and 5A of component 160.
If the checks are incorrect, replace the switch (see MR 411 Mechanical, 83D Cruise control, Brake light
switch: Removal - Refitting).
Check the continuity and insulation from earth of the following connection:
●Connection code 65A between components 160 and 119.
If the connection is faulty, check the connection and condition of intermediate connector R67 located near the
engine fuse and relay box.
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.
If the fault is still present, perform fault finding of the following computers:
●The UCH (see 87B, Passenger compartment connection unit).
●The injection computer (see 17B, Petrol injection).
●The ABS computer (see 38C, Anti-lock braking system).
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_DF082
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
21B-59
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF166
PRESENT
OR
STOREDPRESSURE SENSOR CIRCUIT
CO.0 : Open circuit or short circuit to earth
CC.1 : Short circuit to + 12 V
1.DEF : Signal incoherence
NOTESSpecial note:
–Fault warning light comes on.
Use the Wiring Diagrams Technical Note for New TWINGO.
CO.0/ CC.1
NOTESNone
Check the condition and position of the 30 A fuse for the pump in the engine compartment.
Repair if necessary.
Check the connection and condition of the connectors of components 119 and 1059 and 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 to earth and + 12 V on the following connections:
●Connection code 5HN,
●Connection code 5HX,
●Connection code 5AD,
between components 119 and 1059.
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, replace the oil pressure sensor on the Sequential gearbox (see MR 411, Sequential
gearbox, solenoid valve unit pressure 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_DF166
21B-60
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF166
CONTINUED
1.DEF
NOTESNone
Check the level of oil in the discharged accumulator, refer to the interpretation of command AC081 Discharge
pressure accumulator.
Check the condition and position of the 30 A fuse for the pump in the engine compartment.
Use command AC012 “Hydraulic pump relay” with the diagnostic tool and check that the pump assembly is
working. If the pump is not working, perform the necessary repairs.
If the fault is still present, replace the oil pressure sensor (see MR 411, Sequential gearbox, solenoid valve unit
pressure sensor, Removal refitting).
Switch off the ignition.
Switch on the ignition again and carry out a new check using the diagnostic tool.
Replace the pump assembly if the fault reappears (see MR 411, Sequential gearbox, pump assembly,
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.