2007 RENAULT SCENIC Anti Lock Braking System Bosch 8.0 ABS Workshop Manual

ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart
38C
38C - 57V2 MR-372-J84-38C000$924_eng.mif
BOSCH ABS 8.0
Vdiag No.: 0C, 0D, 0E, 0F
ALP7Unexpected 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 (connections to earth and + after ignition/before ignition feed of the ABS are not permitted).
AFTER REPAIRClear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS8.0_V0C_ALP07 /ABS8.0_V0D_ALP07/ABS8.0_V0E_ALP07/ABS8.0_V0F_ALP07 ABS 8.0X84 3.0

ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart
38C
38C - 58V2 MR-372-J84-38C000$924_eng.mif
BOSCH ABS 8.0
Vdiag No.: 0C, 0D, 0E, 0F
ALP8Lengthening 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 Dealing with commands).
After the operation, carry out a road test with ABS regulation.
If the fault is still present, carry out the above operation again once or twice.
If the customer complaint is particularly pronounced, and the bleeding procedures have not rectified it, contact the
Techline.
AFTER REPAIRClear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS8.0_V0C_ALP08 /ABS8.0_V0D_ALP08/ABS8.0_V0E_ALP08/ABS8.0_V0F_ALP08 ABS 8.0X84 3.0

ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart
38C
38C - 59V2 MR-372-J84-38C000$924_eng.mif
BOSCH ABS 8.0
Vdiag No.: 0C, 0D, 0E, 0F
ALP9 Spongy pedal
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Air in the brake circuits.
Carry out a conventional circuit bleed starting with the right-hand rear brake, then the left-hand rear, left-hand
front and right-hand front brakes. Repeat the operation if necessary.
AFTER REPAIRClear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS8.0_V0C_ALP09 /ABS8.0_V0D_ALP09/ABS8.0_V0E_ALP09/ABS8.0_V0F_ALP09 ABS 8.0X84 3.0

ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart
38C
38C - 60V2 MR-372-J84-38C000$924_eng.mif
BOSCH ABS 8.0
Vdiag No.: 0C, 0D, 0E, 0F
ALP10 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 memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS8.0_V0C_ALP10 /ABS8.0_V0D_ALP10/ABS8.0_V0E_ALP10/ABS8.0_V0F_ALP10 ABS 8.0X84 3.0

ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart
38C
38C - 61V2 MR-372-J84-38C000$924_eng.mif
BOSCH ABS 8.0
Vdiag No.: 0C, 0D, 0E, 0F
ALP11 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, run the solenoid valve actuation commands 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 while depressing the brake pedal.
AFTER REPAIRClear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS8.0_V0C_ALP11/ABS8.0_V0D_ALP11/ABS8.0_V0E_ALP11/ABS8.0_V0F_ALP11 ABS 8.0X84 3.0

ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart
38C
38C - 62V2 MR-372-J84-38C000$924_eng.mif
BOSCH ABS 8.0
Vdiag No.: 0C, 0D, 0E, 0F
ALP12ABS 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.
After the multiplex network test on the CLIP, if the ABS computer is not detected, 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 against without making the automatic VIN code acquisition.
If the fault is still present, follow ALP 1.
AFTER REPAIRClear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
ABS8.0_V0C_ALP12 /ABS8.0_V0D_ALP12/ABS8.0_V0E_ALP12/ABS8.0_V0F_ALP12 ABS 8.0X84 3.0

ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart
38C
38C - 63V2 MR-372-J84-38C000$924_eng.mif
BOSCH ABS 8.0
Vdiag No.: 0C, 0D, 0E, 0F
ABS8.0_V0C_ALP13 /ABS8.0_V0D_ALP13/ABS8.0_V0E_ALP13/ABS8.0_V0F_ALP13
ALP 13Intermittent illumination of the brake, ABS, SERVICE and STOP
fault warning lights and the message “brake failure” on the
instrument panel with no fault codes in the computer
NOTESOnly consult this customer complaint after a complete check with the diagnostic
tool.
Check the condition and connection of the
battery terminals.
Is the battery in good condition?
YES
Check the 50A power fuse in position 5 on
the power fuse board. Check fuse F13 (25A)
on the UPC and the correct locking of the
grey 4-track PPH1 connector (Vdiag 44) or
the 25A fuse F8 on the UPC and the correct
locking of the black 6-track CM connector
(Vdiag 48 or higher).
Are the fuses and connectors correct?
YES
Check the connection and condition of the tab
1 red wire of the grey connector.
Is the connector correct?
YES
NOClean the battery terminals.
NOIf the connector is faulty and there is a repair
procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions
for repair), repair the connector, otherwise
replace the wiring.
Replace any faulty fuses. Switch on the ignition
again.
Is the replaced fuse or fuses correct?
NO
Check the insulation to earth between:
–fuse 50A and track 2 of the computer
–fuse 25A and track 3 of the computer
Are the connections correct?
NO YES
Contact the Techline.
If the connection(s) are faulty and there is a repair method
(see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise
replace it.
NO
If the connector is faulty and there is a repair method (see Technical
Note 6015A, Repairing electrical wiring, Wiring: Precautions for repair),
repair the connector, otherwise replace the wiring.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.

ANTI-LOCK BRAKING SYSTEM
Diagnostic - Fault finding chart
38C
38C - 64V2 MR-372-J84-38C000$924_eng.mif
ALP 13
CONTINUED
Check the connections on the 26-track
connector of the ABS computer.
Is the connector correct?
YES
Check the ABS earths on tracks 1 and 4
(attached under the ABS unit) and carry out
an inspection of the entire
ABS wiring.
Are the earths correct?
YES
Check the continuity between the fuses and
tracks 2 and 3 of the computer connector
(+ Before ignition present on the tracks) and
between the UCH and track 18 of the
computer (+ After ignition feed present on
the track).
Is the continuity correct?
YES
If the customer complaint is still present,
contact Techline.
NOIf the connector is faulty and there is a repair
procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions
for repair), repair the connector, otherwise
replace the wiring.
NOIf the connection(s) are faulty and there is a
repair method (see Technical Note 6015A,
Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring,
otherwise replace it.
BOSCH ABS 8.0
Vdiag No.: 0C, 0D, 0E, 0F
ABS 8.0X84 3.0
NOIf the connection(s) are faulty and there is a
repair method (see Technical Note 6015A,
Repairing electrical wiring, W iring:
Precautions for repair), repair the wiring,
otherwise replace it.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.