21B-77
MR-413-X44-21B000$472.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of faults
Vdiag No: 04
21B
DF265
PRESENT
OR
STOREDCOMPUTER
1.DEF : Main relay fault (integrated in the computer)
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,
–automatic mode is inhibited.
Check the condition and connection of the earths on both connections N of component 119.
Check the condition and position of the sequential gearbox fuses in the engine compartment and in the
passenger compartment.
Check the condition and connection of the connectors for 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 of component 119.
If the + AVC is absent, check the insulation to earth and the continuity of the following connection:
●Connection code BP39,
between components 119 and 1016.
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 for + after ignition feed on connection AP4 of component 119.
If the + after ignition feed is absent, check the insulation to earth and the continuity of the following
connection:
●Connection code AP4,
between components 119 and 1016.
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.
Clear the computer fault memory using command RZ001 "Stored fault(s)", exit the fault finding and switch off the
ignition.
Carry out another 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_DF265
21B-80
MR-413-X44-21B000$649.mif
V2
21B
SEQUENTIAL GEARBOX
Fault finding - Interpretation of statuses
ET003
ET004
BRAKE LIGHT SWITCH (OPENING)
STOP LIGHT SWITCH (CLOSURE)
STATUS
DEFINITIONThese statuses indicate the position of the brake pedal.
NOTESUse the Wiring Diagrams Technical Note for New TWINGO.
Engine stopped, ignition on
–Brake pedal released: ET003: "Closed" and ET004: "Open".
–Brake pedal depressed: ET003: "Open" and ET004: ''Closed".
If the statuses do not correspond with the position of the brake pedal, perform the following fault finding
procedure.
Electrical check of the sensor
Check the condition of the 15 A fuse of the brake light switch located on component 1016.
Check the brake light switch is correctly positioned on the brake pedal.
Check the condition and correct connection of component 160.
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 the + after ignition feed on both connections AP10 of component 160.
If there is no + after ignition feed, check the continuity and insulation to earth of the two connections AP10
between components 160 and 1016.
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.
Pedal released:
Check the continuity between connections AP10 (track 4) and 5A of component 160.
Check the insulation between connections AP10 (track 2) and 65A of component 160.
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 one of these checks is incorrect, replace the brake light switch (see MR 411 Mechanical, 83D Cruise control,
Brake light switch: Removal - Refitting).
AFTER REPAIRCarry out another fault finding check on the system.
Deal with any other faults.
Clear the stored faults.
BVRJH1_V04_ET003 / BVRJH1_V04_ET004
MR-413-X44-21B000$649.mif
Vdiag No: 04
21B-81
MR-413-X44-21B000$649.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of statuses
Vdiag No: 04
21B
ET003
ET004
CONTINUED
Check the condition and correct connection 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 the continuity of connection 65A between components 119 and 160.
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 insulation to + 12 V of the following connections:
●Connection code 65A between components 160 and 119.
●Connection code 65A between components 160 and 645.
●Connection code 65A between components 160 and 172.
●Connection code 65A between components 160 and 173.
●Connection code 65A between components 160 and 639.
●Connection code 65A between components 160 and 1094.
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, 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 REPAIRCarry out another fault finding check on the system.
Deal with any other faults.
Clear the stored faults.
21B-84
MR-413-X44-21B000$649.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of statuses
Vdiag No: 04
21B
ET027
DRIVER'S DOOR OPEN
STATUS
DEFINITIONStatus ET027 indicates the position of the opening elements by the specifications
"CLOSED " and "OPEN".
NOTESUse the Wiring Diagrams Technical Note for New TWINGO.
Engine stopped, ignition on
CLOSED: Driver's door closed
OPEN: Driver's door open
In the event of a fault, refer to the fault finding procedure below.
Electrical check of the sensor
Check the connection and condition of the connectors of components 140, 1016 and 119 as well as the driver's
door intermediate connector.
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 connection H24 between components 119, 1016 and 140.
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, carry out fault finding on the UCH (see 87B, Passenger compartment connection
unit).
AFTER REPAIRCarry out another fault finding check on the system.
Deal with any other faults.
Clear the stored faults.
BVRJH1_V04_ET027
21B-85
MR-413-X44-21B000$649.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of statuses
Vdiag No: 04
21B
ET028
HANDBRAKE
STATUS
DEFINITION"Engaged": the handbrake lever is raised.
"Released": the handbrake lever is in rest position.
NOTESUse the Wiring Diagrams Technical Note for New TWINGO.
Engine stopped, ignition on
Status ET028 indicates the position of the handbrake lever:
●"Engaged": the handbrake lever is raised.
●"Released": the handbrake lever is in rest position.
If status ET028 is incorrect, apply the procedure below.
Electrical check of the sensor
Run a multiplex network test (see 88B, multiplex).
Check the condition of the connections of component 156 and check that they are correctly connected.
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.
Remove the handbrake switch.
Press the handbrake switch and check the insulation between connection 27A and earth.
If there is resistance, replace the handbrake switch.
Release the handbrake switch and check the continuity between the same connections.
If there is no continuity, replace the handbrake switch.
Check the condition of the connections of component 247 and check that they are correctly connected.
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 the continuity and the earth insulation on connection 27A between components 247 and 156.
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 a fault finding of the instrument panel (see 83A, Instrument panel).
AFTER REPAIRCarry out another fault finding check on the system.
Deal with any other faults.
Clear the stored faults.
BVRJH1_V04_ET028
21B-86
MR-413-X44-21B000$649.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of statuses
Vdiag No: 04
21B
ET030
ACCELERATOR PEDAL POSITION
STATUS
DEFINITION"PL": the accelerator pedal is in the "no load" position.
"Intermediate": the accelerator pedal is in the intermediate position.
"PF": the accelerator pedal is in the "full load" position.
NOTESUse the Wiring Diagrams Technical Note for New TWINGO.
Engine stopped, ignition on
Status ET030 is a multiplexed signal supplied by the injection computer.
This status ET030 indicates the position of the accelerator pedal, check the conformity of the status by depressing
the accelerator pedal:
●PL: pedal in rest position
●Intermediate: pedal in an intermediate position
●PF: pedal in full load position
If status ET030 is incorrect, apply the procedure below.
Electrical check of the sensor
Check the positioning of the accelerator pedal potentiometer on the accelerator pedal.
Check that nothing inhibits the movement of the pedal (floor carpet etc.).
Check the condition of the connections of component 921 and check that they are correctly connected.
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.
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_ET030
21B -107
MR-413-X44-21B000$767.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of parameters
Vdiag No: 04
21B
PR008
COMPUTER SUPPLY VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the sequential gearbox computer supply voltage value
expressed in V.
NOTESUse the Wiring Diagrams Technical Note for New TWINGO.
Engine stopped, ignition on
PR008 ≈ 12 V
The computer supply voltage value must be close to the battery voltage.
Electrical check of the component
Check that the sequential gearbox supply fuse is correctly positioned and in good condition in the engine
compartment connection unit.
Check the engine earths on the vehicle are in good condition.
Repair if necessary.
Measure the battery voltage and check the charge circuit (see Technical Note 6014A, Charge circuit check).
Check the connection and condition of the connections of component 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 of the following connections:
●Connection code BP39,
●Connection code AP4,
between components 1016 and 119.
●Connection code N (2 connections) between earths MC-12A and MC-12B and 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.
AFTER REPAIRCarry out another fault finding check on the system.
Deal with any other faults.
Clear the stored faults.
BVRJH1_V04_PR008
21B -126
MR-413-X44-21B000$944.mif
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