21B-83
MR-413-X44-21B000$649.mif
V2
SEQUENTIAL GEARBOX
Fault finding - Interpretation of statuses
Vdiag No: 04
21B
ET013
GEAR ENGAGED
STATUS
DEFINITIONThis status ET013 indicates the gear engaged and corresponds to the gear displayed
on the instrument panel:
●1: 1st
●
2: 2nd
●
3: 3rd
●
4: 4th
●
5: 5th
●
N: Neutral
●R: Reverse
NOTESNone
Engine stopped, ignition on
Check the specification of status ET013 each time the gear lever is moved:
●Gears 1st to 5th: push the lever forwards for the next gear up and backwards for the next gear down and
check how status ET013 changes each time the gear lever moves.
●Position N (neutral): when status ET013 is "1", push the lever to the right and check that status ET013 is
"N".
●Gear R (reverse): check status ET013 changes to "R" after depressing the brake pedal, pushing the lever to
the right and then to the rear.
If status ET013 is not correct, refer to the interpretation of faults DF069 "Selection position circuit" and DF070
"Engaging position sensor circuit".
AFTER REPAIRCarry out another fault finding check on the system.
Deal with any other faults.
Clear the stored faults.
BVRJH1_V04_ET013
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 -122
MR-413-X44-21B000$885.mif
V2
Vdiag No: 04SEQUENTIAL GEARBOX
Fault finding - Interpretation of commands21B
ACTUATORS (Continued)
SETTINGSAC014 "Clutch solenoid valve"
This command enables the clutch solenoid valves to be operated to perform a listening
check or to test their supply.
AC015 "Engagement solenoid valves"
This command enables the engagement solenoid valves to be operated to perform a
listening check or to test their supply.
AC016 "Selection solenoid valves"
This command enables the selection solenoid valves to be operated to perform a listening
check or to test their supply.
AC017 "Display"
This command enables the display integrity to be checked by searching through all the data
available relating to the sequential gearbox.
AC019 "Return gearbox to neutral"
This command returns the gearbox to neutral.
AC024 Sequential actuator control
This command enables all sequential gearbox switches to be operated in order to check that
they are working.
AC028 "Engage reverse gear"
This command enables reverse gear to be engaged.
AC081 "Discharge pressure accumulator"
This command enables pressure in the hydraulic circuit to be discharged. The handbrake
must be applied when using this command.
VP001 "Write VIN"
This command permits manual entry of the vehicle's VIN into the computer.
Use this command each time the computer is replaced or (re)programmed.
Note:
When replacing or reprogramming a computer, use command AC007 Hydraulic unit pump rehabilitation
before carrying out parameter VP008 Program selection/engagement ranges.
VP008 "Program selection/engagement ranges"
This command enables the gears to be programmed.
Use this command when:
–replacing the electrohydraulic unit, the clutch or the gearbox,
–replacing or reprogramming the computer,
–replacing the engagement position sensor and the selecting position sensor,
–replacing the engagement, selection or clutch solenoid valves.
–replacing the reservoir, accumulator or pump only.
