wiring RENAULT TWINGO 2009 2.G Chasiss ABS Owner's Manual

38C-46
MR-413-X44-38C000$517_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Interpretation of faults
MK70 ABS
Vdiag No: 04
38C
DF230
PRESENT
OR
STOREDFRONT LEFT-HAND WHEEL SPEED
1.DEF: Vehicle speed sensor signal consistent
NOTESPriorities when dealing with a number of faults:
Deal with fault DF006 Front left wheel speed sensor circuit first if it is present.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present during a road test (in excess of 12 mph (20 km/h)
for 2 minutes).
Check the condition of the axle assemblies (impacts, damage, etc.) and the conformity and good condition of the
tyres.
Check that the braking system (condition of brake pads, sealing, sticking, bleed, bearing clearance, etc.) is in
good condition.
Visually inspect the condition of the target (for clogging, metallic contamination, bearing grease, etc.) and clean
using compressed air if necessary.
If there is a lot of grease on the target, contact the Techline.
Check that the wheel speed sensor mounting is in good condition.
Check the conformity of the target (condition, number of teeth = 48) using the special command SC001 Check
target teeth.
If there is non-conformity, replace the target.
Check the connection and condition (possible damage to the wiring) of the connector of component 1094.
Check the connection and condition (possible damage to the wiring) of the connector of component 153.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
Check for a voltage of approximately 12 V between the two connections of the connector of component 153 near
component 1094.
If a 12 V feed is not present, contact the Techline.
If all the checks are in order, swap the 2 front wheel speed sensors. Clear the computer fault memory.
Switch off the ignition. Switch the ignition back on and carry out a road test.
If a fault, which was initially registered as DF230 front left-hand wheel speed has become present DF229 front
right-hand wheel speed, replace the wheel speed sensor (see MR411 Mechanical systems, 38C, Wheel
speed sensor: Removal - Refitting).
If the fault stays on the same side, the target is faulty, replace the active sensor bearing.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_DF230

38C-47
MR-413-X44-38C000$517_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Interpretation of faults
MK70 ABS
Vdiag No: 04
38C
DF231
PRESENT
OR
STOREDREAR RIGHT-HAND WHEEL
1.DEF: Vehicle speed sensor signal consistent
NOTESPriorities when dealing with a number of faults:
Deal with fault DF027 right rear wheel speed sensor circuit first if it is present.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present during a road test (in excess of 12 mph (20 km/h)
for 2 minutes).
Check the condition of the axle assemblies (impacts, damage, etc.) and the conformity and good condition of the
tyres.
Check that the braking system (condition of brake pads, sealing, sticking, bleed, bearing clearance, etc.) is in
good condition.
Visually inspect the condition of the target (for clogging, metallic contamination, bearing grease, etc.) and clean
using compressed air if necessary.
If there is a lot of grease on the target, contact the Techline.
Check that the wheel speed sensor mounting is in good condition.
Check the conformity of the target (condition, number of teeth = 48) using the special command SC001 Check
target teeth.
If there is non-conformity, replace the target.
Check the connection and condition (possible damage to the wiring) of the connector of component 1094.
Check the connection and condition (possible damage to the wiring) of the connector of component 150.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
Check for a voltage of approximately 12 V between the two connections of component 150 near
component 1094.
If a 12 V feed is not present, contact the Techline.
If all the checks are in order, swap the 2 rear brake drums. Clear the computer fault memory.
Switch off the ignition. Switch the ignition back on and carry out a road test.
If the fault initially declared as DF231 "rear right-hand wheel speed" has become DF232 "rear left-hand wheel
speed" present, replace the complete drum (see MR411 Mechanical systems, 33A, Rear axle component).
If the fault remains on the same side, replace the speed sensor (see MR411 Mechanical systems, 38C Wheel
speed sensor, Removal - Refitting).
Important, do not forget to refit the drums to the correct wheels.
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_DF231

38C-48
MR-413-X44-38C000$517_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Interpretation of faults
MK70 ABS
Vdiag No: 04
38C
DF232
PRESENT
OR
STOREDREAR LEFT-HAND WHEEL
1.DEF: Vehicle speed sensor signal consistent
NOTESPriorities when dealing with a number of faults:
Deal with fault DF007 Rear left-hand wheel speed sensor circuit first if it is present.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present during a road test (in excess of 12 mph (20 km/h)
for 2 minutes).
Check the condition of the axle assemblies (impacts, damage, etc.) and the conformity and good condition of the
tyres.
Check that the braking system (condition of brake pads, sealing, sticking, bleed, bearing clearance, etc.) is in
good condition.
Visually inspect the condition of the target (for clogging, metallic contamination, bearing grease, etc.) and clean
using compressed air if necessary.
If there is a lot of grease on the target, contact the Techline.
Check that the wheel speed sensor mounting is in good condition.
Check the conformity of the target (condition, number of teeth = 48) using the special command SC001 Check
target teeth.
If there is non-conformity, replace the target.
Check the connection and condition (possible damage to the wiring) of the connector of component 1094.
Check the connection and condition (possible damage to the wiring) of the connector of component 151.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
Check for a voltage of approximately 12 V between the two connections of the connector of component 151 near
component 1094.
If a 12 V feed is not present, contact the Techline.
If all the checks are in order, swap the 2 rear wheel brake drums. Clear the computer fault memory.
Switch off the ignition. Switch the ignition back on and carry out a road test.
If the fault initially declared as DF232 "rear left-hand wheel speed" has become present DF231 "rear right-
hand wheel speed", replace the complete drum. (see MR411 Mechanical systems, 33A Rear axle
components).
If the fault remains on the same side, replace the speed sensor (see MR411 Mechanical systems, 38C Wheel
speed sensor, Removal - Refitting).
Important, do not forget to refit the drums to the correct wheels.
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_DF232

38C-53
MR-413-X44-38C000$658_eng.mif
V1
38C
ANTI-LOCK BRAKING SYSTEM
Fault finding - Interpretation of statuses
ET017
BRAKE PEDAL
NOTESSpecial notes:
Only carry out the checks if the PRESSED and RELEASED statuses are inconsistent
with the pedal position.
Use the Technical Note wiring diagram for New Twingo.
STATUS
"RELEASED"
Brake pedal
depressed
If brake lights operate:
–Check the continuity of connection 65A between components 160 and 1094.
If the connector is faulty (see NT6015, Repairing electrical wiring, wiring: Precaution
for repairs), repair the connector, otherwise replace the wiring.
If the brake lights are not working:
–Check the condition, mounting and adjustment of the brake light switch and the
conformity of the bulbs.
–Remove the brake light switch and check that it is operating correctly:
Connection continuity Connection insulation
Switch pressed
(Brake pedal released)AP10 and 5A AP10 and 65A
Switch released
(Brake pedal depressed)AP10 and 65A AP10 and 5A
–Replace the switch if necessary.
Intermediate connector R107 and component 160 and 1081 disconnected:
–Check the continuity and insulation of connection AP10 between
component 1016 and intermediate connector R107.
–Check the continuity and insulation of connection AP10 between
component 160 and intermediate connector R107.
If the connector is faulty (see NT6015, Repairing electrical wiring, wiring:
Precaution for repairs), repair the connector or the 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_ET017
MK70 ABS
Vdiag No: 04
MR-413-X44-38C000$658_eng.mif

38C-54
MR-413-X44-38C000$658_eng.mif
V1
MK70 ABS
Vdiag No: 04ANTI-LOCK BRAKING SYSTEM
Fault finding - Interpretation of statuses38C
ET017
CONTINUED 1
Connectors of components 645, 172, 173, 639 and 1094, intermediate connectors
R107 and R15 and connector of component 119 (if present on the vehicle)
disconnected from connection 65A:
–Check the insulation of connection 65A between component 160 and
intermediate connector R107.
–Check the insulation of connection 65A between component 172 and
intermediate connector R107.
–Check the insulation of connection 65A between component 173 and
intermediate connector R107.
–Check the insulation of connection 65A between intermediate connectors R107
and R15.
–Check the insulation of connection 65A between component 639 and
intermediate connector R15.
–Check the insulation of connection 65A between component 645 and
intermediate connector R107.
If the connector is faulty (see NT6015, Repairing electrical wiring, wiring:
Precaution for repairs), repair the connector, otherwise replace the wiring.
–Check for + 12 V after ignition feed on connection AP10 of component 1016 to
earth MAH.
If the checks reveal no faults, carry out a check of each component associated with
connection 65A and AP10 (short circuits).
Check the condition and positioning of the F5 5A fuse (see MR411 Mechanical
systems, 81C, Fuses: 16A).
–Check the condition, mounting and adjustment of the brake light switch and the
conformity of the bulbs.
–Remove the brake light switch and check that it is operating correctly:
Connection continuity Connection insulation
Switch pressed
(Brake pedal released)AP10 and 5A AP10 and 65A
Switch released
(Brake pedal
depressed)AP10 and 65A AP10 and 5A
–Replace the switch if necessary.
Connectors of components 645, 172, 173, 639 and 1094, intermediate
connectors R107 and R15 and connector of component 119 (if present on the vehicle)
disconnected from connection 65A
–Check the insulation of connection 65A between component 160 and
intermediate connector R107.
STATUS
DEPRESSED:
Brake pedal
released
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.

38C-55
MR-413-X44-38C000$658_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Interpretation of statuses
MK70 ABS
Vdiag No: 04
38C
ET017
CONTINUED 2
–Check the insulation of connection 65A between component 172 and intermediate connector R107.
–Check the insulation of connection 65A between component 173 and intermediate connector R107.
–Check the insulation of connection 65A between intermediate connectors R107 and R15.
–Check the insulation of connection 65A between component 639 and intermediate connector R15.
–Check the insulation of connection 65A between component 645 and intermediate connector R107.
If the connector is faulty (see NT6015, Repairing electrical wiring, wiring: Precaution for repairs),
repair the connector, otherwise replace the wiring.
If the checks reveal no faults, carry out a check of each component associated with connection 65A
(internal component faults).
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.

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

38C-66
MR-413-X44-38C000$940_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Fault Finding Chart
MK70 ABS
Vdiag No: 04
38C
ALP 1
CONTINUED
Ensure that the supply to the diagnostic socket is correct:
Check the condition and position of the F12 5 A fuse in the Passenger compartment fuse box.
Consult section 81C, Fuses.
Connector of component 645 of connection BP19 disconnected:
–Check for + after ignition feed on connection BP19 of component 225.
If the + after ignition feed is not present on connection BP 19, check component 1016.
–Check connections NAM and MAM of component 225.
If the connection is faulty (see Technical Note 6015A, Repairing electrical wiring, wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If dialogue has still not been established after these checks, contact the Techline.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.

38C-67
MR-413-X44-38C000$940_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Fault Finding Chart
MK70 ABS
Vdiag No: 04
38C
ALP 2 Locking of one or more wheels
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Check the conformity of the mechanical components.
NOTESLocking of wheels on a vehicle fitted with ABS or squealing of the tyres, which feels
like locking to the customer, may be linked to normal operation of the system and
should not always be considered a fault:
–Locking is allowed below 4 mph (6 km/h) (system regulation will not be activated).
–Braking with ABS system regulation on very poor roads (significant grating).
However, if the wheel(s) is/are actually locking, lift the vehicle in order to be able to rotate the wheels and check:
–Possible inversion when connecting the speed sensors.
Using parameters PR001, PR002, PR003 and PR004, rotate the wheels slowly and check the consistency of the
results obtained.
If the value measured is zero, rotate the other wheels to confirm an electrical inversion of the sensors and repair
the wiring harness.
–Possible inversion of pipes on the hydraulic unit.
Use commands Front left wheel solenoid valves, Front right wheel solenoid valves, Rear left wheel solenoid
valves and Rear right wheel solenoid valves while depressing the brake pedal and check for 10 unlocking/locking
cycles on the wheel concerned (see Dealing with command modes). If the 10 cycles are not carried out on the
wheel tested (wheel remains locked), check whether they are carried out on another wheel (confirmation of a
reversal: repair).
If the 10 cycles are not detected on a wheel and the pipes have not been reversed, change the hydraulic unit.
Check that the sensor holder does not rotate (depending on fitting).
Check the quality of the mounting of the wheel speed sensors (correct clipping for the front wheels).
Check the conformity of the targets: condition, number of teeth = 48 (using command SC001 Check target
teeth).
If the fault is still present after these checks, replace the hydraulic unit.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_ALP2

38C-72
MR-413-X44-38C000$940_eng.mif
V1
ANTI-LOCK BRAKING SYSTEM
Fault finding - Fault Finding Chart
MK70 ABS
Vdiag No: 04
38C
ALP 7Unexpected ABS operation when using special equipment
(car phone, CB, etc.)
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Check that the equipment which is causing the fault is approved.
Check that this equipment has been correctly installed without modification to the original wiring, in particular, that
of the ABS (connections to earth and + after ignition/+ before ignition of the ABS are not permitted).
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS_V04_ALP7