traction control RENAULT SCENIC 2007 J84 / 2.G Anti Lock Braking System Bosch 8.0 ESP Workshop Manual
[x] Cancel search | Manufacturer: RENAULT, Model Year: 2007, Model line: SCENIC, Model: RENAULT SCENIC 2007 J84 / 2.GPages: 85, PDF Size: 0.29 MB
Page 7 of 85
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
Page 8 of 85
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).
Page 9 of 85
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).
Page 10 of 85
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).
Page 83 of 85
38C-83
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
*ASR: Traction control
ALP15ESP warning light comes on with the "ASR* disconnected or off"
message when the current is switched on without pressing the
ESP disconnection button
NOTESConsult this customer complaint only if the "Service", "ABS" and "Brake" warning lights
are not lit.
After disconnecting the battery, it is probable that the electric power steering loses the steering wheel angle
sensor indexing (the electric power steering no longer sends the steering wheel angle signal to the ESP, which is
then disabled).
The ESP system is not faulty, no fault is present in the fault memory, the ESP warning light comes on and the
"ASR disconnected or off" message indicate this transient and reversible status.
To restore the electric power steering indexing and enable the ESP again, it is necessary to:
–switch on the ignition or start the engine (to obtain maximum steering assistance),
–turn the steering wheel slowly to full right lock, to full left lock, then return slowly to the centre point after going
slightly past it,
–the ESP warning light should go out and the message "ASR disconnected or off" should disappear,
–stop the engine and switch off the ignition,
–switch on the ignition, start the engine and see that the warning light no longer lights up.
If the warning light and the message reappear, start the procedure described above again.
If the operation fails again or if this customer complaint appears without the battery having been disconnected, run
fault finding on the electric power steering and repair accordingly.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_ALP15 /ESPBOSCH_V09_ALP15/ESPBOSCH_V0A_ALP15/
ESPBOSCH_V0B_ALP15 /ESPBOSCH_V11_ALP15/ESPBOSCH_V12_ALP15BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12