RENAULT TWINGO RS 2009 2.G Chasiss ESP Owners Manual

38C-91
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP5Unexpected ABS operation at low speed and with slight pedal
pressure
NOTESOnly address this customer complaint after a complete check with the diagnostic tool.
Important: ABS regulation is sensitive on slippery surfaces (ice, wet cobbled
streets, etc.).
Brake pedal vibrations associated with the reactions of the system may be felt in
particular circumstances, such as:
–Crossing speed bumps.
–Tight cornering with lifting of the inside rear wheel.
These vibrations also may be linked merely to activation of the Braking distributor
function, when the pressure on the rear axle is limited.
Check the conformity of the mechanical components (see MR 411, Mechanical,
30A, General information, Brake, Specifications).
If the fault is not one of the situations indicated above, check the correct connection of the wheel speed sensors,
the air gap between these sensors and the magnetic targets.
Refer to the interpretation of fault DF063 Wheel speed consistency.
ESP_V05_ALP5

38C-92
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP6 Unexpected ABS system intervention on a poor road surface
NOTESOnly address this customer complaint after a complete check with the diagnostic tool.
Check the conformity of the mechanical components (see MR 411, Mechanical,
30A, General information, Brake, Specifications).
On poor road surfaces it is normal to feel hesitation and vibrations of the pedal as well grating which is more
significant than on good surfaces.
This gives the impression of a variation in efficiency, but this should be considered normal.
ESP_V05_ALP6

38C-93
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP7Unexpected ABS operation when using special equipment
(car phone, CB, etc.)
NOTESOnly address 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 was correctly installed without modification of the original wiring, in particular that of
the ABS/ESP.
Connections to earth and to the ABS/ESP supply are forbidden.
ESP_V05_ALP7

38C-94
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP8Lengthening of the brake pedal travel following a regulation
phase (with an irregular pedal when entering the regulation
phase)
NOTESOnly address this customer complaint after a complete check with the diagnostic tool.
Check the conformity of the mechanical components (see MR 411, Mechanical,
30A, General information, Brake, Specifications).
Bleed the primary hydraulic circuit (see MR 411, Mechanical, 30A, General information, Brake circuit,
Bleeding).
After the operation, carry out a road test with ABS regulation.
If the fault is still present:
Carry out an After-Sales bleed using command SC006 Bleed hydraulic unit and brake circuit.
After the operation, carry out a road test with ABS regulation.
If the fault is still present:
Bleed the primary hydraulic circuit again (see MR 411, Mechanical, 30A, General information, Brake circuit,
Bleeding).
After the operation, carry out a road test with ABS regulation.
If the customer complaint is particularly pronounced, and bleeding the circuit does not improve matters, replace
component 1094 (see MR 411, Mechanical, 38C, Hydraulic brake unit, Removal - Refitting).
ESP_V05_ALP8

38C-95
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP9 Spongy pedal
NOTESOnly address this customer complaint after a complete check with the diagnostic tool.
Check the conformity of the mechanical components (see MR 411, Mechanical,
30A, General information, Brake, Specifications).
Bleed the primary hydraulic circuit (see MR 411, Mechanical, 30A, General information, Brake circuit,
Bleeding).
After the operation, carry out a road test with ABS regulation.
If the fault is still present:
Carry out an After-Sales bleed using command SC006 Bleed hydraulic unit and brake circuit.
After the operation, carry out a road test with ABS regulation.
If the fault is still present:
Bleed the primary hydraulic circuit again (see MR 411, Mechanical, 30A, General information, Brake circuit,
Bleeding).
After the operation, carry out a road test with ABS regulation.
If the customer complaint is particularly pronounced, and bleeding the circuit does not improve matters, replace
component 1094 (see MR 411, Mechanical, 38C, Hydraulic brake unit, Removal - Refitting).
ESP_V05_ALP9

38C-96
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP10 Brake pedal vibration
NOTESOnly address this customer complaint after a complete check with the diagnostic tool.
Check the conformity of the mechanical components and in particular check that the
brake discs are not warped.
It is normal that the brake pedal vibrates during ABS regulation or braking pressure distribution on the front and
rear axles ("braking compensator" function).
ESP_V05_ALP10

38C-97
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP11 Noises from the pump, the pipes or the hydraulic unit
NOTESOnly address this customer complaint after a complete check with the diagnostic tool.
Check the conformity of the mechanical components (see MR 411, Mechanical,
30A, General information, Brake, Specifications).
Vibration of the unit: check the presence and condition of the unit mounting insulating rubber mountings.
Vibration of pipes: check that all the pipes are securely clipped in their retaining clips and that there is no contact
between pipes or between pipes and bodywork.
To identify the source of the noise, use the control commands of the solenoid valves AC003 "Front left-hand
wheel solenoid valves", AC004 "Front right-hand wheel solenoid valves", AC005 "Rear left-hand wheel
solenoid valves" and AC006 "Rear left-hand wheel solenoid valves" and of the pump AC016 "Pump motor
test".
ESP_V05_ALP11

38C-98
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP12ABS computer not detected during the multiplex network test
on CLIP
NOTESOnly address this customer complaint after a complete check with the diagnostic tool.
After the multiplex network test on CLIP, if the ABS/ESP computer is not detected, carry out the following
operations:
–Return to the home menu of the CLIP screen.
–Switch off the ignition.
–Restart the engine (+ after ignition feed).
–Repeat the multiplex network test.
–If the fault is still present, perform the fault finding described in ALP1 No dialogue with the ABS/ESP computer.
ESP_V05_ALP12

38C-99
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP 13 Faulty brake light illumination
NOTESOnly address this customer complaint after a complete check with the diagnostic tool.
Using the diagnostic tool, check the consistent status ET017 "Brake pedal" for pedal pressed and pedal
released.
If inconsistent, apply the fault finding procedure for status ET017 Brake pedal.
If the lights come on continuously, check the operation of component 1281 using command AC187 Brake light
activation relay. The brake lights must light only when the command is run.
Otherwise, with component 1281 removed, check the continuity between connections 65A and 65G of
component 1281.
If continuity is not guaranteed, replace component 1281.
ESP_V05_ALP13

38C-100
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP14 Erratic ESP regulation
NOTESOnly address this customer complaint after a complete check with the diagnostic tool.
Check that the 4 vehicle tyres are identical and in accordance with the manufacturer's recommendations (see
MR 411, Mechanical, 35A, Wheels and tyres, Tyres, Identification).
Check that the pressures of the 4 tyres conform to the manufacturer's recommendations (see MR 411,
Mechanical, 35A, Wheels and tyres, Tyre pressure, Identification).
Using the diagnostic tool, check that the vehicle version corresponds to the vehicle type.
If necessary, reconfigure the vehicle version using command VP004 Vehicle parameters to correspond to the
vehicle type.
Using parameter PR030 Tachometric index, check that the tachometric index corresponds to the vehicle type.
If necessary, reconfigure the tachometric index using command VP007 Tachometric index to correspond to the
vehicle.
Check the connection and condition (possible wiring damage) of the connector of component 1175.
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 component 1175 is properly mounted on the body and in the correct direction (the arrow must point
towards the front of the vehicle).
Calibrate component 583 using command VP003 Steering wheel angle sensor (see Configurations and
programming).
Clear the ESP sensor offsets using command RZ011 Sensor offsets.
Clear the faults from the computer using the command RZ001 "Fault memory".
Carry out a road test followed by another check with the diagnostic tool.
If the fault is still present:
–Adjust the axle geometry (see MR 411, Mechanical, 30A, General information, Front axle, Adjustment).
–Calibrate component 583 using command VP003 Steering wheel angle sensor (see Configurations and
programming).
–Clear the ESP sensor offsets using command RZ011 Sensor offsets.
–Clear the faults from the computer using the command RZ001 "Fault memory".
–Carry out a road test followed by another check with the diagnostic tool.
If the fault is still present, contact the Techline.
ESP_V05_ALP14