air condition RENAULT TWINGO RS 2009 2.G Chasiss ESP Service Manual

38C-72
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$130.mif
38C
Bosch 8.1 ESP
Vdiag No.: 05
ET017BRAKE PEDAL
NOTESSpecial notes:
Only carry out the checks if the PRESSED and RELEASED statuses are inconsistent
with the pedal position.
Use the Wiring Diagram Technical Note for New Twingo.
"Released" STATUS Brake pedal depressed.
If the brake lights are working:
With the connectors of components 1094, 160, intermediate union R107 and component 119 disconnected
(depending on equipment), check the continuity of connection 65A between components 160 and 1094.
If the connection is faulty (see Technical Note 6015A, Electrical wiring repair, Wiring: Precautions for repair),
repair the wiring, otherwise replace it.
If the brake lights are not working:
–Check the condition, fitting and the adjustment of component 160 as well as the conformity of the bulbs.
–Remove (see MR 411, Mechanical, 37A, Mechanical component control, Brake light switch: Removal -
Refitting) and test the operation of component 160:
Continuity between tracks Insulation between tracks
Switch engaged
(Brake pedal released)AP10 and 5A AP10 and 65A
Switch released
(Brake pedal depressed)AP10 and 65A AP10 and 5A
Replace component 160 if necessary.
Check the condition and position of fuse F5 (15A) (see 81C, Fuse box).
Check for +12 V after ignition feed on connection AP10 of component 1016 to the earth MAH.
With intermediate connector R107 and component 160, 1281 and 1081 disconnected (depending on equipment):
–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.
ESP_V05_ET017
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of statuses

38C-74
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$130.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of statuses38C
Bosch 8.1 ESP
Vdiag No.: 05
ET017
CONTINUED 2
STATUS "DEPRESSED": Brake pedal released.
–Check the condition, fitting and adjustment of component 160 as well as the conformity of the bulbs.
–Remove (see MR 411, Mechanical, 37A, Mechanical component control, Brake light switch: Removal -
Refitting) and test the operation of component 160:
Continuity between tracks Insulation between tracks
Switch engaged
(Brake pedal released)AP10 and 5A AP10 and 65A
Switch released
(Brake pedal depressed)AP10 and 65A AP10 and 5A
Replace component 160 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.
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 connection is faulty (see Technical Note 6015A, Electrical wiring repair, Wiring: Precautions for repair),
repair the wiring, otherwise replace it.
If these checks do not reveal any faults:
Perform a complete check of component 645 using the diagnostic tool.
Perform a visual inspection of components 172, 173, 639 present on connections 65A and AP10 (short circuit to
earth).
Replace the component(s) if necessary:
See MR 411 Mechanical, Rear lighting, Rear wing lights, Removal - Refitting for components 172 and 173.
See MR 411 Mechanical, Rear lighting, High level brake light, Removal - Refitting for component 639.

38C-75
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$130.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of statuses38C
Bosch 8.1 ESP
Vdiag No.: 05
ET023ESP ON/OFF BUTTON
NOTESSpecial notes:
Apply the checks only if the PRESSED and RELEASED statuses are not consistent
with the position of the ESP on/off button (RS version only)
Use the Wiring Diagram Technical Note for New Twingo.
PRESSED STATUS
Connector of component 1106 disconnected and without action on the component.
Check that there is no continuity between connections MAM and 4AQ of component 1106.
Otherwise, replace component 1106.
Check the connection and condition (possible wiring damage) of the connectors of components 1106, 1094.
Check the connection and condition (possible wiring damage) of intermediate union R107.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
Connector of components 1106 and 1094 and intermediate union R107 disconnected,
Check the insulation of connection 4AQ between component 1106 and intermediate union R107.
Check the insulation of connection 4AQ between intermediate union R107 and component 1094.
If the connection is faulty (see Technical Note 6015A, Electrical wiring repair, Wiring: Precautions for repair),
repair the wiring, or replace it.
If the fault is still present, contact the Techline.
ESP_V05_ET023

38C-76
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$130.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of statuses38C
Bosch 8.1 ESP
Vdiag No.: 05
ET023
CONTINUED
RELEASED STATUS
Connector of component 1106 disconnected and with action on the component.
Check for continuity between connections MAM and 4AQ of component 1106.
Otherwise, replace component 1106.
Check the connection and condition (possible wiring damage) of the connectors of components 1106 and 1094.
Check the connection and condition (possible wiring damage) of intermediate union R107.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
Connector of components 1106 and 1094 and intermediate union R107 disconnected,
check the continuity of connection MAM between component 1106 and the chassis earth (tightness,
oxidation, etc.),
check the continuity of connection 4AQ between component 1106 and intermediate union R107,
check the continuity of connection 4AQ between intermediate union R107 and component 1094.
If the connection or connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
If the fault is still present, contact the Techline.

38C-78
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$150.mif
38C
Bosch 8.1 ESP
Vdiag No.: 05
Tool command Diagnostic tool title Comments
RZ001Fault memory This command is used for clearing the computer's stored faults
RZ011Sensor offsetsThis command reinitialises programming of the ESP sensors.
Run this command each time an operation required the steering
wheel angle to be programmed or following any operation on the
axle assemblies.
Also run this command when the combined sensor has been
removed or replaced
SC001Check target teethThis command tests the condition of the teeth on each wheel.
Select the command SC001 and follow the instructions.
The test result should indicate 48 teeth.
SC006Bleed the hydraulic unit and
brake circuitsThis command should only be used if an abnormally long brake
pedal travel is noted during a road test with ABS control (the
system must have been bled beforehand by the usual method).
Select command SC006 and follow the instructions given by the
diagnostic tool.
AC003Front left-hand wheel solenoid
valvesSee the interpretation of command (see Interpretation of
commands).
AC004Front right-hand wheel
solenoid valvesSee the interpretation of command (see Interpretation of
commands).
AC005Rear left-hand wheel solenoid
valvesSee the interpretation of command (see Interpretation of
commands).
AC006Rear right-hand wheel solenoid
valvesSee the interpretation of command (see Interpretation of
commands).
AC013Wheel speed sensor supply
testSee the interpretation of command (see Interpretation of
commands).
AC016Pump motor testSee the interpretation of command (see Interpretation of
commands).
AC187Brake light activation relaySee the interpretation of command (see Interpretation of
commands).
AC195Vehicle speed signalSee the interpretation of command (see Interpretation of
commands).
AC196Hazard warning light activation
requestSee the interpretation of command (see Interpretation of
commands).
ANTI-LOCK BRAKING SYSTEM
Fault finding – Command summary table

38C-79
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$160.mif
38C
Bosch 8.1 ESP
Vdiag No.: 05
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.
The previous four 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 (do not brake so firmly that
full brake 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 to see it go through several locking/unlocking cycles.
ESP_V05_AC003/ESP_V05_AC004/ESP_V05_AC005/ESP_V05_AC006
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of commands

38C-80
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$160.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of commands38C
Bosch 8.1 ESP
Vdiag No.: 05
AC013WHEEL SPEED SENSOR SUPPLY TEST
NOTESConditions of use of the command.
Ignition on, engine off.
This command is used to test the supply to every wheel speed sensor.
Select command AC013 and check for 12 V between:
–connections 4T and 4S of component 150,
–connections 4H and 4G of component 151,
–connections 4E and 4C of component 153,
–connections 4N and 4M of component 152.
ESP_V05_AC013

38C-81
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$160.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of commands38C
Bosch 8.1 ESP
Vdiag No.: 05
AC016PUMP MOTOR TEST
NOTESConditions of use of the command.
Ignition on, engine off.
This command is used to test the pump motor control circuit.
Select the command AC016.
Engine operation must be audible.
ESP_V05_AC016

38C-82
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$160.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of commands38C
Bosch 8.1 ESP
Vdiag No.: 05
AC187BRAKE LIGHT ACTIVATION RELAY
NOTESConditions of use of the command.
Ignition on, engine off.
This command is used to test brake light activation by the ESP when controlling oversteer with sharp deceleration.
ESP_V05_AC187

38C-83
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$160.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of commands38C
Bosch 8.1 ESP
Vdiag No.: 05
AC195VEHICLE SPEED SIGNAL
NOTESConditions of use of the command.
Ignition on, engine stopped and vehicle speed zero.
This command is used to generate a speed other than 0 mph (0 km/h) at the computer's vehicle speed wire output
(connection 47F) for users of that signal (radio, sunroof, power-assisted steering).
This command has no visible effect on the dashboard speedometer needle.
Radio: Switch on the radio and check that the "adjustment of volume according to speed" function is active
(see 86A, radio).
Run the command AC195. During the command, you should hear the volume of the sound increase and then
decrease.
Variable electric power-assisted steering: Start the vehicle then return to the conditions of use of the command.
Turn the steering wheel from lock to lock using command AC195, to note a variation in the assistance level.
ESP_V05_AC195