light RENAULT SCENIC 2007 J84 / 2.G Anti Lock Braking System Bosch 8.0 ESP Workshop Manual

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 2V2 MR-372-J84-38C050$062_eng.mif
138C
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12ANTI-LOCK BRAKING SYSTEM
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding procedure applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type
Fault finding procedures (this manual):
–Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu-Schéma (CD-ROM), paper.
Type of diagnostic tools
–CLIP
Special tooling required
3. RECAP
Procedure
To perform fault finding on the vehicle's computers, switch on the ignition in fault finding mode.
Proceed as follows:
–vehicle's card in reader;
–press and hold the Start button (longer than 5 seconds) with start-up conditions not present,
–connect the diagnostic tool and perform the required operations.
To cut off + after ignition feed, proceed as follows:
–disconnect the diagnostic tool,
–press the Start button twice briefly (less than 3 seconds),
–ensure that the + after ignition feed has been cut off by checking that the computer indicator lights on the instrument
panel have gone out. Vehicle(s): MEGANE II, SCENIC II
Function concerned: ESPName of computer: ESP 8.0
Vdiag No.: 08, 09, 0A, 0B, 11 and 12
Special tooling required
Multimeter
Elé. 1681 Universal bornier
Note:
The left and right-hand xenon bulb computers are supplied when the dipped headlights are lit. Therefore fault
finding can only be carried out on them after the ignition has been switched on in fault finding mode (forced + after
ignition feed) and the dipped headlights have been switched on.
ESPBOSCH_V08_PRELI /ESPBOSCH_V09_PRELI /ESPBOSCH_V0A_PRELI/
ESPBOSCH_V0B_PRELI /ESPBOSCH_V11_PRELI/ESPBOSCH_V12_PRELI
MR-372-J84-38C050$062_eng.mif

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 5V2 MR-372-J84-38C050$062_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
4. FAULT FINDING PROCEDURE (continued)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring harness may temporarily remove the cause of a fault.
Electrical measurements of voltage, resistance and insulation are generally correct, especially if the fault is not
present when the analysis is made (stored fault).
Visual inspection
Look for damage under the bonnet and in the passenger compartment.
Carefully check the fuses, insulators and wiring harness routing.
Look for signs of oxidation.
Tactile inspection
While manipulating the wiring harness, use the diagnostic tool to note any change in fault status from stored to
present.
Make sure that the connectors are properly locked.
Apply light pressure to the connectors.
Twist the wiring harness.
If there is a change in status, try to locate the source of the fault.
Inspection of each component
Disconnect the connectors and check the appearance of the clips and tabs, as well as the crimping (no crimping on
the insulating section).
Make sure that the clips and tabs are properly locked in the sockets.
Check that no clips or tabs have been dislodged during connection.
Check the clip contact pressure using an appropriate model of tab.
Resistance check
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to + 12 V or to another wire.
If a fault is detected, repair or replace the wiring harness.

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 7V2 MR-372-J84-38C050$186_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12ANTI-LOCK BRAKING SYSTEM
The ESP system on this vehicle incorporates the following functions:
–The ABS (anti-lock braking system). The main functions of the ABS system are electronic front and rear braking
distribution (EBD) by controlling rear wheel slip, and preventing the wheels from locking by controlling the slipping
of all four wheels.
–MSR (engine torque control). Traction control on the driven wheels under no load by limiting the engine braking.
–ASR (traction control). It limits skidding of the drive wheels during starting or acceleration phases by limiting the
engine torque and braking the wheel(s) which are skidding.
–ESP (electronic stability program). Electronic stability program limiting oversteer or understeer by braking certain
wheels and controlling the engine torque.
–CSV (understeer control). Specific control of situations involving pronounced understeer by significant vehicle
braking in conjunction with a specific dynamic stability program.
–AUTOMATIC LIGHTING OF HAZARD WARNING LIGHTS. Generation on the CAN network, for the UCH, of a
request for switching on the hazard warning lights in case of braking causing a very hard deceleration (according
to the legislation of the country).
–AUTOMATIC BRAKE LIGHTS SWITCH-ON. In the event of understeer control (CSV only), the ESP computer
switches on the brake lights, via a relay, to give warning of severe deceleration generated by the system (according
to national legislation).
The system also supplies the other computers with information on the vehicle speed via a wire connection for the
xenon bulbs, the radio and the electric sunroof, and via the multiplex network for the other computers. The ABS/ESP
computer provides the odometry for the instrument panel and navigation aid over the multiplex network.
IDENTIFICATION
From the outside, two factors distinguish an ABS unit from an ABS/ESP unit:
–The size of the units (the ABS/ESP unit is bigger than the ABS) unit. The ABS unit has 8 solenoid valves
and the ABS/ESP unit has 12.
–The number of computer tracks (the ABS computer has 26 tracks and the ABS/ESP computer has
46 tracks).
MR-372-J84-38C050$186_eng.mif

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 8V2 MR-372-J84-38C050$186_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
FAULT FINDING WARNING LIGHT ILLUMINATION STRATEGY for Mégane II ph1 and Scénic II ph 1.
*ASR: Traction controlInstrument panel warning lightInstrument panel message
Meaning
MEGANE II SCENIC II
Brake faults ABS ESPSERVICE STOPESP/ASR*
not workingESP/ASR*
not working,
faulty brakingElectronic braking
regulation and ABS
and ESP not working.
ABS ESP SERVICEESP/ASR*
not workingESP/ASR*
not working
check ABSESP and ABS function
not working.
ESP SERVICEESP/ASR*
not workingESP/ASR*
not workingESP function not
working, Electronic
Braking Distribution
and anti-lock braking
system working
ESPASR*
disconnectedASR*
disconnected–ESP disconnection
button registered
OR
–ESP temporarily
disconnected after
disconnection of the
battery.
Brake faults
flashing at
2 Hz.ABS
flashing at
2 HzESP
flashing at
2 HzNo message No messageABS computer is in
fault finding mode.
Brake faultsABS faults
flashing at
8 HzESP
flashing at
8 HzSTOP No message No messageVehicle parameters
and tachometric index
not programmed.
Brake faults ABSESP
flashing at
8 HzSERVICE STOP No message No messageVehicle parameters
not programmed.
ABS faults
flashing at
8 HzNo message No messageTachometric index not
programmed.
ESP
flashing at
8 HzNo message No messageESP being regulated.
ASR* being regulated.
MSR being regulated.
Note:
The STOP warning light is always accompanied by a single audible warning (1 beep).

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 9V2 MR-372-J84-38C050$186_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
FAULT FINDING WARNING LIGHT ILLUMINATION STRATEGY for Mégane II ph 2 and Scénic II ph 2.
*ASR: Traction controlInstrument panel warning lightInstrument panel message
Meaning
MEGANE II
PH2SCENIC II
PH2
Brake faults ABS ESP SERVICE STOP Braking faultElectronic braking
regulation and ABS
and ESP not working.
ABS ESP SERVICE Check the ABSESP and ABS function
not working, electronic
braking regulation in
backup.
ESP SERVICE Check the ESPESP function not
working, electronic
braking regulation
operational and ABS
in backup.
ESPTRACTION CONTROL
DEACTIVATED
1
–ESP/ASR*
disconnection
button registered
OR
–ESP/ASR*
temporarily
disconnected after
disconnection of the
battery.
Brake faults
flashing at
2 Hz.ABS
flashing at
2 HzESP
flashing at
2 HzNo messageESP computer in fault
finding mode.
Note:
1: On Mégane Sport, this message is replaced by "ASR/ESP off".
The STOP warning light is always accompanied by a single audible warning (1 beep).

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 10V2 MR-372-J84-38C050$186_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
FAULT FINDING WARNING LIGHT ILLUMINATION STRATEGY for Mégane II ph 2 and Scénic II ph 2.
(continued)
*MSR: Engine torque control
*ASR: Traction controlInstrument panel warning lightInstrument panel message
Meaning
MEGANE II
PH2SCENIC II
PH2
ESP
flashing at
8 HzNo messageESP being regulated.
ASR* being regulated.
MSR* being regulated.
ABS faults
flashing at
8 HzNo messageTachometric index
and/or speed at
initialisation not
programmed.
Brake faults ABS ESP
flashing at
8 HzSERVICE STOP No messageVehicle parameters
not programmed.
Brake faultsABS faults
flashing at
8 HzESP
flashing at
8 HzSTOP No messageVehicle parameters
and tachometric index
not programmed.
Vehicle parameters
and speed at
initialisation not
programmed.
Vehicle parameters
and tachometric index
and speed at
initialisation not
programmed.
Note:
The STOP warning light is always accompanied by a single audible warning (1 beep).

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 11V2 MR-372-J84-38C050$248_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12ANTI-LOCK BRAKING SYSTEM
REPLACING THE COMPUTER
When replacing the computer/pump assembly, follow this procedure:
–switch off the ignition,
–replace the computer (see MR 364 Mechanical or MR 370 Mechanical, 38C, Anti-lock braking system,
Hydraulic unit),
–enter the VIN using command VP001,
–configure the tachometric index using command VP007,
–configure the vehicle parameters with command VP004.
If Vdiag 0B, 11 or 12:
–configure the vehicle speed at initialisation with command VP032,
–inhibit or authorise the automatic brake light illumination (depending on the country's legislation)
using commands VP021 "Inhibit automatic brake light illumination" or VP022 "Authorise automatic
brake light illumination",
–enter the most recent After Sales operation date using command VP006,
–perform a road test followed by a fault reading to confirm that the system is operating correctly.
REPLACING THE COMBINED SENSOR
When replacing the combined sensor, you must erase the programming of the ESP sensors with command RZ003 (if
available).
Command RZ003 "Programming ESP sensors" is only available on Vdiag 09, 0A, 0B, 11, 12. IMPORTANT
It is imperative to check that the parameters selected match the vehicle's description.
Note:
Run this command every time the electric power steering is removed and refitted, and each time the steering wheel
angle is calibrated in the electric power steering subgroup.
MR-372-J84-38C050$248_eng.mif

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 13V2 MR-372-J84-38C050$310_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
SETTINGS (continued)
VP021: Automatic brake lights deactivation.
Use this command only in those countries where legislation prohibits the brake lights lighting
automatically without the brake pedal being depressed. Brake light activation is not authorised
with ESP control (in accordance with national legislation).
VP022: Automatic brake lights authorisation.
This command is used to reactivate automatic lighting of the brake lights by ESP intervention
after it has been inhibited by command VP021 (in accordance with national legislation).
VP023: Automatic reconnection threshold of the ESP.
If the value of PR064 is not 30 mph (50 km/h), use this command to set the automatic ESP
reconnection threshold to 30 mph (50 km/h).
VP032: Vehicle speed at initialisation.
Vehicle speed transmitted via the multiplex network when the computer is initialised.
Select "Type 1" or "Type 2" according to the information supplied by the tool.

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 14V2 MR-372-J84-38C050$372_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12ANTI-LOCK BRAKING SYSTEM
Tool faultAssociated
DTCDiagnostic tool title
DF001 50CCComputer supply
DF006 501FFront left-hand wheel speed sensor circuit
DF007 503FRear left-hand wheel speed sensor circuit
DF017 50C3Computer
DF020 50C3Tachometric index programming
DF026 500FFront right-hand wheel speed sensor circuit
DF027 502FRear right-hand wheel speed sensor circuit
DF055 50C3Vehicle parameter programming
DF063 5046Wheel speed inconsistency
DF066 5180No injection multiplex signal
DF090 5041Front right-hand wheel target
DF091 5042Front left-hand wheel target
DF092 5043Rear right-hand wheel target
DF093 5044Rear left-hand wheel target
DF097 5188No automatic transmission multiplex signal
DF126 50F4Combined sensor signal plausibility
DF152 50E6Multiplex network
DF153 50C3Multiplex network
DF186 5182No instrument panel multiplex signal
DF187 50CEBrake light activation relay circuit
DF188 50C6Brake light switch circuit
DF189 50F4Combined sensor circuit
DF190 50F4Combined sensor
DF191 50C9ESP on/off button circuit
DF193 5180Invalid injection multiplex signals
DF194 5158Invalid electric power steering signals
DF195 5188Invalid automatic gearbox multiplex signals
DF196 5158No power-assisted steering multiplex signal
MR-372-J84-38C050$372_eng.mif

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 26V2 MR-372-J84-38C050$434_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
DF017
CONTINUED
2.DEF
NOTESSpecial notes:
No programming of PR020 Vehicle speed at initialisation,
ABS warning light flashes at 8 Hz outside fault finding
conditions.
Vdiag No.: 08, 09, 0A
Check that the value of PR064 Automatic ESP reconnection threshold is 30 mph (50 km/h). If not, run command
VP023 Automatic ESP reconnection threshold.
View ET030 Automatic brake light illumination and configure (according to the law of the land) the authorisation
or inhibition of the brake light illumination with commands VP021 Inhibit automatic brake light illumination or
VP022 Authorise automatic brake light illumination.
Clear the computer fault memory, switch off the ignition and carry out a road test. If the fault is still present, contact
the Techline.
Vdiag: 0B, 11, 12
View ET030 Automatic brake light illumination and configure (according to the law of the land) the authorisation
or inhibition of the brake light illumination with commands VP021 Inhibit automatic brake light illumination or
VP022 Authorise automatic brake light illumination.
Read the value of PR020 Vehicle speed at initialisation and the related Help on the Clip. If necessary,
configure the vehicle speed with command VP032 Vehicle speed at initialisation.
Clear the computer fault memory, switch off the ignition and carry out a road test. 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.