2009 RENAULT TWINGO check engine

38C-49
MR-413-X44-38C000$517_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Interpretation of faults
MK70 ABS
Vdiag No: 04
38C
DF250
DF251
DF252
DF253
DF254
PRESENT
OR
STOREDENGINE SPEED MULTIPLEX SIGNAL
AVERAGE EFFECTIVE TORQUE MULTIPLEX SIGNAL
TORQUE REQUEST MULTIPLEX FEEDBACK SIGNAL
CALCULATED TORQUE MULTIPLEX SIGNAL
RESISTING TORQUE MULTIPLEX SIGNAL
NOTESSpecial notes:
Although it is stored in the computer, the ABS system is not faulty.
Perform fault finding on the injection system using the diagnostic tool.
Note:
The injection computer does not always store these transient faults as quickly as the
ABS computer.
If no fault is stored in the injection computer, start the engine; if there is no fault
present, contact the Techline. After solving the injection system problem, erase
the faults from the ABS computer memory.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present when the engine is started up.
Carry out fault finding on the injection system (see MR413 Fault Finding, 13B, Diesel injection or 17B,
Petrol injection).
If the fault is still present, contact the Techline.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_DF250 / ABS_V04_DF251
ABS_V04_DF252 / ABS_V04_DF253 / ABS_V04_DF254

38C-50
MR-413-X44-38C000$517_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Interpretation of faults
MK70 ABS
Vdiag No: 04
38C
DF311
PRESENT
OR
STOREDNO BVR MULTIPLEX SIGNAL
NOTESSpecial notes:
Even though it is stored in the computer, this fault does not cause the warning lights to
come on or a fault message, because the ABS system is not faulty.
Perform fault finding on the BVR (sequential gearbox) using the diagnostic tool.
Note:
After repairing the fault in the BVR (sequential gearbox), clear the fault memory
in the ABS system.
Priority in the event of a number of faults:
Deal with fault DF152 Multiplex network first if it is present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present when the engine is started up.
Check the gearbox type configuration with the diagnostic tool, using command LC008 Gearbox type.
If the configuration is not correct, configure the gearbox type present on the vehicle using configuration command
CF079 Gearbox type.
Check the BVR (sequential gearbox) using the diagnostic tool.
Run a multiplex network test (see 88B, Multiplex).
If the fault is still present, contact the Techline.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_DF311

38C-59
MR-413-X44-38C000$846_eng.mif
V1
38C
ANTI-LOCK BRAKING SYSTEM
Fault finding - Dealing with command modes
AC003
AC004
AC005
AC006FRONT LEFT-HAND WHEEL SOLENOID VALVES
FRONT RIGHT-HAND WHEEL SOLENOID VALVES
REAR LEFT-HAND WHEEL SOLENOID VALVES
REAR RIGHT-HAND WHEEL SOLENOID VALVES
NOTESConditions of use of the command.
Ignition on, engine stopped and vehicle speed zero.
Before using the commands, check that the battery is fully charged.
The previous 4 commands allow the hydraulic check of each wheel.
Raise the vehicle in order to be able to rotate the wheels, and check that they rotate freely.
Keep the brake pedal depressed to prevent the wheel being tested from being turned by hand (do not brake so
firmly that full braking power is reached).
Select and confirm the command of the wheel being examined (e.g. Front left-hand wheel solenoid valves, etc.)
Turn the wheel concerned by hand; 5 locking/unlocking cycles should be noted on the wheel.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_AC003 / ABS_V04_AC004
ABS_V04_AC005 / ABS_V04_AC006
MK70 ABS
Vdiag No: 04
MR-413-X44-38C000$846_eng.mif

38C-60
MR-413-X44-38C000$846_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Dealing with command modes
MK70 ABS
Vdiag No: 04
38C
AC016
PUMP MOTOR TEST
NOTESConditions of use of the command.
Ignition on, engine stopped and vehicle speed zero.
Before using the command, check that the battery is fully charged.
This command is used to test the pump motor control circuit.
Select command AC016 Pump Motor Test.
The motor must run for 5 seconds.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_AC016

38C-61
MR-413-X44-38C000$846_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Dealing with command modes
MK70 ABS
Vdiag No: 04
38C
AC153
AC154
AC155
AC156BLEED FRONT LEFT-HAND WHEEL
BLEED FRONT RIGHT-HAND WHEEL
BLEED REAR LEFT-HAND WHEEL
BLEED REAR RIGHT-HAND WHEEL
NOTESConditions of use of the command.
Ignition on, engine stopped and vehicle speed zero.
Before using the commands, check that the battery is fully charged.
These 4 commands should only be used if you observe lengthening of the brake pedal travel during a road test
with ABS regulation (the system should have been bled in advance using the conventional procedure).
See ALP8.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_AC153 / ABS_V04_AC154
ABS_V04_AC155 / ABS_V04_AC156

38C-62
MR-413-X44-38C000$846_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Dealing with command modes
MK70 ABS
Vdiag No: 04
38C
AC195
VEHICLE SPEED SIGNAL
NOTESConditions of use of the command.
Ignition on, engine stopped and vehicle speed zero.
Before using the command, check that the battery is fully charged.
This command is used to generate a speed other than 0 mph at the computer's vehicle speed wire output
(connection 47F) for users of that signal (radio, sunroof).
This command has no visible effect on the dashboard speedometer needle.
–Radio: Turn on the radio and make sure that the Adjust volume as a function of speed function is active.
Run command AC195. During the command, you should notice the volume of the sound increase and then
decrease. (See 86A, radio).
–Sunroof: This command has no visible effect on the sunroof. This command changes the activation threshold
of the anti-pinch system (the energy required to close the sunroof varies with vehicle speed due to aerodynamic
constraints). (See 87D ELECTRIC WINDOWS - SUNROOF).
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_AC195

38C-63
MR-413-X44-38C000$846_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Dealing with command modes
MK70 ABS
Vdiag No: 04
38C
AC196
HAZARD WARNING LIGHT ACTIVATION REQUEST
NOTESConditions of use of the command.
Ignition on, engine stopped and vehicle speed zero.
Before using the command, check that the battery is fully charged.
This command sends a hazard warning light activation request to the UCH (Passenger compartment connection
unit) to test their operation in the event of emergency braking (depending on UCH, Passenger Compartment
Connection Unit configuration).
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_AC196

38C-65
MR-413-X44-38C000$940_eng.mif
V1
38C
ANTI-LOCK BRAKING SYSTEM
Fault finding - Fault Finding Chart
ALP 1 No dialogue with the ABS computer
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Check that the diagnostic tool is not causing the fault by trying to establish dialogue with a computer on another
vehicle. If the tool is not at fault, and dialogue cannot be established with any other computer on the same vehicle,
the cause could be a faulty computer interfering on the multiplex network.
Check the battery voltage and carry out the necessary operations to obtain the correct voltage (9.5 V < Battery
voltage < 17.5 V, see MR411 Mechanical systems, 16A, Starting-charging).
Run fault finding on the multiplex network, using the diagnostic tool (see MR413 Fault finding, 88B, Multiplex).
Check the condition and position of the 15A and 20A fuses in the engine fuse and relay box.
Check the condition and position of the F10 5 A fuse in the Passenger compartment fuse box.
Consult section 81C, Fuses.
Check the connection and condition (possible damage to the wiring) of the connector of component 1094.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
Check that the supply to the computer is correct:
●Connector of component 1094 disconnected, check the insulation and continuity of connection MAH
of component 1094 (tightness, oxidisation etc.).
●Connectors of component 1094 and R107 disconnected, check the insulation and continuity of
connection AP5 between component 1094 and intermediate connector R107.
●Check the insulation and continuity of connection AP5 between intermediate connector R107 and
component 1016.
●Connectors of component 1094 and R67 disconnected, check the insulation and continuity of
connections BP8 and BP14 between component 1094 and intermediate connector R67.
●Check the insulation and continuity of connections BP8 and BP14 between intermediate connector R67
and component 597.
If the connection or connections are faulty (see Technical Note 6015A, Electrical wiring repair, Wiring:
Precautions for repair), repair the connectors or wiring, otherwise replace the wiring.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_ALP1
MK70 ABS
Vdiag No: 04
MR-413-X44-38C000$940_eng.mif