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V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of parameters
Vdiag No: 04
21B
PR106
PR107
PR152
PR153
PR154EFFECTIVE ENGINE TORQUE
NO REDUCTION ENGINE TORQUE
ANTICIPATED ENGINE TORQUE
SLOW TORQUE SETPOINT
FAST TORQUE SETPOINT
PARAMETER
DEFINITIONThis parameters indicate the value of the torque supplied by the engine in Nm.
NOTESNone
Engine stopped, ignition on
PR106 = 0 Nm
PR107 = 0 Nm
PR152 = 0 Nm
PR153 = 0 Nm
PR154 = 0 Nm
In the event of a fault, carry out a multiplex network test (see 88B, Multiplexing).
Run fault finding on the injection system (see 17B, Petrol injection).
AFTER REPAIRCarry out another fault finding check on the system.
Deal with any other faults.
Clear the stored faults.
BVRJH1_V04_PR106 / BVRJH1_V04_PR152 / BVRJH1_V04_PR154
BVRJH1_V04_PR107 / BVRJH1_V04_PR153
Page 118 of 138
21B-118
MR-413-X44-21B000$767.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of parameters
Vdiag No: 04
21B
PR145
ENGINE COOLANT TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the coolant temperature in ˚C.
NOTESNone
Engine stopped, ignition on
PR145 = 20 ˚C in default mode
Compare the value of parameter PR145 with the value measured by the coolant temperature sensor in the
domain of the injection computer (see 17B, Petrol injection).
If not correct, run a multiplex network test (see 88B, Multiplex).
AFTER REPAIRCarry out another fault finding check on the system.
Deal with any other faults.
Clear the stored faults.
BVRJH1_V04_PR145
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21B-119
MR-413-X44-21B000$767.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of parameters
Vdiag No: 04
21B
PR148
CLUTCH CLOSED POSITION
PARAMETER
DEFINITIONThis parameter indicates the position of the clutch in mm.
NOTESNone
Engine stopped, ignition on
PR148 = 576 mm (new clutch)
In the event of a fault, consult the interpretation of fault DF068 “Clutch position sensor circuit”.
AFTER REPAIRCarry out another fault finding check on the system.
Deal with any other faults.
Clear the stored faults.
BVRJH1_V04_PR148
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V2
21B
SEQUENTIAL GEARBOX
Diagnostic - Fault finding chart
ALP 1 No dialogue with the sequential gearbox computer
NOTESSpecial notes:
Only consult this customer complaint after a complete check with the diagnostic
tool.
Use the Wiring Diagrams Technical Note for New TWINGO.
Try to establish dialogue with a computer on another vehicle to make sure that the diagnostic tool is not faulty. If
the tool is not causing the fault and dialogue cannot be established with any other computer on the same vehicle,
it may be that a faulty computer is disrupting the CAN diagnostic line.
Use a process of successive disconnections to locate this computer.
Check the voltage of the battery and carry out the operations necessary to obtain a voltage which is to
specification (9.5 V < battery voltage < 17.5 V).
Check the presence of and condition of the Sequential Gearbox fuses on the passenger compartment fuse box
(7.5 A and 20 A).
Check that the computer connector is properly connected and check the condition of its connections.
Check the sequential gearbox earths (good condition, not corroded, tightness of the earth bolt above the
hydraulic unit).
Check that the supply to the computer is correct:
–Earth on the N connections of the 52-track connector.
–+ AVC on connection BP39 of the 52-track connector.
–+ after ignition feed on connection AP4 of the 52-track connector.
Check that the power supply to the diagnostic socket is correct:
–+ AVC on connection BP19.
–Earth on connections MAM and NAM.
If dialogue has still not been established after these checks, contact the Techline.
AFTER REPAIRClear the computer fault memory. Switch off the ignition and wait 20 seconds.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_ALP1
MR-413-X44-21B000$944.mif
Vdiag No: 04
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21B -127
MR-413-X44-21B000$944.mif
V2
SEQUENTIAL GEARBOX
Diagnostic - Fault finding chart
Vdiag No: 04
21B
ALP 2Cannot select a forward or reverse gear when stationary
Impossible to select N
Impossible to start engine with gear engaged, even with brake
pedal depressed
NOTESSpecial notes:
Only consult this customer complaint after a complete check with the diagnostic tool.
Use the Wiring Diagrams Technical Note for New TWINGO.
Check the + after ignition feeds and the earths of the sequential gearbox computer.
Check the condition of the gear lever contacts and that it is operating correctly (consult the interpretation of
statuses ET043 "Lever contact No. 0", ET044 "Lever contact No. 1", ET045 "Lever contact No. 2" and
ET046 Lever contact No. 3").
Repair if necessary.
Check for the presence and condition of the brake light switch supply fuse on the passenger compartment fuse
board.
Repair if necessary.
Check that the brake light switch connector is correctly connected, check the condition of the connections as well
as those of the computer.
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 brake light switch on the pedal is correctly fitted and adjusted.
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, 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, 83D Cruise control, Brake light switch: Removal -
Refitting).
If the fault is still present, check the continuity of the following connection:
●Connection code 65A between components 160 and 119.
Also ensure the insulation to earth.
AFTER REPAIRClear the computer fault memory. Switch off the ignition and wait 20 seconds.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_ALP2
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V2
SEQUENTIAL GEARBOX
Diagnostic - Fault finding chart
Vdiag No: 04
21B
ALP 3Impossible to engage or disengage a gear
Engine can only be started if brake pedal depressed
Semiautomatic mode not possible
Engine stalls when brake pedal is depressed
NOTESSpecial notes:
Only consult this customer complaint after a complete check with the diagnostic tool.
Check the + after ignition feeds and the earths of the sequential gearbox computer.
Check that the gear lever is not jammed or damaged or even broken. Replace the lever if necessary (see MR 411
Mechanical, 21B, Sequential gearbox, Sequential gearbox selector lever: Removal - Refitting).
Apply the fault finding procedure for ET043 "Lever switch No. 0", ET044 "Lever switch No. 1", ET045 "Lever
switch No. 2" and ET046 Lever switch No. 3".
If the fault is still present, run a multiplex network test using the diagnostic tool (see 88B, Multiplex).
AFTER REPAIRClear the computer fault memory. Switch off the ignition and wait 20 seconds.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_ALP3
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V2
SEQUENTIAL GEARBOX
Diagnostic - Fault finding chart
Vdiag No: 04
21B
ALP 4Cannot access automatic mode if semi-automatic mode was
previously selected
Cannot access semiautomatic mode if automatic mode was
previously selected
Switching to automatic mode possible if restarting engine
NOTESSpecial notes:
Only consult this customer complaint after a complete check with the diagnostic tool.
Use the Wiring Diagrams Technical Note for New TWINGO.
Check the connection and condition of the connectors of components 1058 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.
Apply the interpretation of statuses ET043 “Lever switch no. 0”, ET044 “Lever switch no. 1”, ET045 “Lever
switch no. 2” and ET046 “Lever switch no. 3”.
AFTER REPAIRClear the computer fault memory. Switch off the ignition and wait 20 seconds.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_ALP4
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V2
SEQUENTIAL GEARBOX
Diagnostic - Fault finding chart
Vdiag No: 04
21B
ALP 5 No reversing lights
NOTESSpecial notes:
Only consult this customer complaint after a complete check with the diagnostic tool.
Use the Wiring Diagrams Technical Note for New TWINGO.
Check the condition of the bulbs for the reversing lights.
Replace if not correct.
Check the conformity of the supply fuse of the reversing light switch (15 A) located on the passenger
compartment fuse box.
Replace the fuse if not correct.
If, following replacement of the fuse and switching on the ignition, the fuse is not correct, check the insulation to
earth of connection AP3 between components 1016 and 155.
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.
Replace the faulty fuse.
If the fuse is correct, check the presence of + 12 V on connection AP3 of component 155.
If there is no + 12 V, check the continuity of connection AP3 between components 1016 and 155.
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 conformity of the reversing lights switch:
●Switch in rest position: insulation between connections AP3 and H66P of component 155.
●Switch depressed: continuity between connections AP3 and H66P of component 155.
Replace the reversing lights switch if not correct.
Check for the earth of the reversing light on the following connection(s):
●Left-hand drive: connection MF of component 172.
●Right-hand drive: connection MG of component 173.
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 REPAIRClear the computer fault memory. Switch off the ignition and wait 20 seconds.
Carry out a road test followed by another check with the diagnostic tool.
BVRJH1_V04_ALP5