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

38C-71
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
ALP 3 Pull
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Disconnect one wheel speed sensor. Start the
engine and check that only the ABS fault warning
light comes on. Do not drive the vehicle if the brake
fault warning light is also lit, as the brake limiter
function is no longer guaranteed to operate
correctly. Carry out a road test with the ABS
deactivated.
Is the fault still present under these conditions?
no
Raise the vehicle so that you can rotate the wheels
and check:
–Possible inversion when connecting the speed
sensors.
–Possible inversion of pipes on the hydraulic unit.
To carry out these two tests, refer to and follow the
procedures given in ALP 2.
Check the condition of the ABS targets and that they
conform to specifications.
Also check the sensor/target air gap over one
revolution of each front and rear wheel.
If the fault is still present, contact the Techline.
yesIf the brake pedal travel is relatively long,
bleed the brake circuit.
If the travel is normal, check the tyre
pressures, the front axle, or for any leaks
in the circuit.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_ALP03 /ESPBOSCH_V09_ALP03/ESPBOSCH_V0A_ALP03/
ESPBOSCH_V0B_ALP03 /ESPBOSCH_V11_ALP03/ESPBOSCH_V12_ALP03BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12

38C-72
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
ALP 4 Drift
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Disconnect one wheel speed sensor. Start the
engine and check that only the ABS fault warning
light comes on. Do not drive the vehicle if the brake
fault warning light is also lit, as the brake limiter
function is no longer guaranteed to operate
correctly. Carry out a road test with the ABS
deactivated.
Is the fault still present under these conditions?
no
Normal behaviour linked to the system operation
during the regulation phase, mainly on surfaces with
uneven grip or which are poorly laid.
yesRoad handling fault not connected with
the ABS.
Check the condition of the brake linings
and that they are to specification and
check the tyre pressures, the front axle,
etc.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_ALP04 /ESPBOSCH_V09_ALP04/ESPBOSCH_V0A_ALP04/
ESPBOSCH_V0B_ALP04 /ESPBOSCH_V11_ALP04/ESPBOSCH_V12_ALP04
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12

38C-73
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
ALP 5Unexpected ABS operation at low speed and with slight
pedal pressure
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Important: ABS regulation may be unresponsive when the vehicle is driven on surfaces
such as icy roads, cobbled streets, etc.
It is possible to feel brake pedal vibrations which are associated with the reaction of the system in particular
circumstances, such as:
–crossing rumble strips,
–tight cornering with lifting of the inside rear wheel.
These vibrations may be linked to simple brake limiter activation, when the pressure on the rear axle is limited.
If the fault is different, check the speed sensor connectors (micro-breaks) as well as the air gaps.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_ALP05 /ESPBOSCH_V09_ALP05/ESPBOSCH_V0A_ALP05/
ESPBOSCH_V0B_ALP05 /ESPBOSCH_V11_ALP05/ESPBOSCH_V12_ALP05BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12

38C-74
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
ALP 6 Unexpected ABS system intervention on a poor road surface
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
On poor road surfaces it is normal to feel bucking and vibration of the pedal as well as more significant tyre
squealing than on good surfaces.
This gives the impression of a variation in efficiency, but this should be considered normal.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_ALP06 /ESPBOSCH_V09_ALP06/ESPBOSCH_V0A_ALP06/
ESPBOSCH_V0B_ALP06 /ESPBOSCH_V11_ALP06/ESPBOSCH_V12_ALP06BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12

38C-75
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
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 system (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.
ESPBOSCH_V08_ALP07 /ESPBOSCH_V09_ALP07/ESPBOSCH_V0A_ALP07/
ESPBOSCH_V0B_ALP07 /ESPBOSCH_V11_ALP07/ESPBOSCH_V12_ALP07BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12

38C-76
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
ALP 8Lengthening of the brake pedal travel following a regulation
phase (with an irregular pedal when entering the
regulation phase)
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Air transit from the hydraulic unit regulation channels to the brake circuits.
Bleed the circuits, following the procedure using the diagnostic tool commands (see Command mode
procedures).
Following the operation, carry out a road test with ABS regulation.
If the fault is still present, carry out the above operation again 1 or 2 times.
If the customer complaint is particularly pronounced, and the bleeding procedures have not rectified it, contact the
Techline.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_ALP08 /ESPBOSCH_V09_ALP08/ESPBOSCH_V0A_ALP08/
ESPBOSCH_V0B_ALP08 /ESPBOSCH_V11_ALP08/ESPBOSCH_V12_ALP08BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12

38C-77
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
ALP 9 Spongy pedal
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Air in the brake circuits.
Bleed the circuits in the conventional way starting with the rear right-hand brake, followed by rear left, front left
and finally front right. Repeat the operation if necessary.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_ALP09 /ESPBOSCH_V09_ALP09/ESPBOSCH_V0A_ALP09/
ESPBOSCH_V0B_ALP09 /ESPBOSCH_V11_ALP09/ESPBOSCH_V12_ALP09BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12

38C-78
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
ALP 10 Brake pedal vibration
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Normal reaction of the brake pedal during ABS regulation or of limitation of pressure on the rear axle
(brake limiter function).
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_ALP10 /ESPBOSCH_V09_ALP10/ESPBOSCH_V0A_ALP10/
ESPBOSCH_V0B_ALP10 /ESPBOSCH_V11_ALP10/ESPBOSCH_V12_ALP10BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12

38C-79
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
ALP 11 Noise from the pump, pipes or hydraulic unit
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
–Vibration of the unit: check the presence and the condition of the unit bracket insulating rubber mounting
bushes.
–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 determine where the noise is coming from, use the front left-hand wheel solenoid valves, front right-hand wheel
solenoid valves, rear left-hand wheel solenoid valves and rear right-hand wheel solenoid valves control
commands while depressing the brake pedal.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_ALP11/ESPBOSCH_V09_ALP11/ESPBOSCH_V0A_ALP11/
ESPBOSCH_V0B_ALP11/ESPBOSCH_V11_ALP11/ESPBOSCH_V12_ALP11BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12

38C-80
MR-372-J84-38C050$930_eng.mif
V2
ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart38C
ALP 12ABS computer not detected during the multiplex network test
on CLIP
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Check that the CLIP diagnostic tool is equipped with the latest update available.
If the ABS computer is not detected after the multiplex network test on the CLIP, carry out the following operations:
–return to the home menu of the CLIP screen,
–switch off the ignition,
–switch on the ignition again,
–test the computers again without the automatic acquisition of the VIN code.
If the fault is still present, follow ALP 1.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_ALP12 /ESPBOSCH_V09_ALP12/ESPBOSCH_V0A_ALP12/
ESPBOSCH_V0B_ALP12 /ESPBOSCH_V11_ALP12/ESPBOSCH_V12_ALP12BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12