brake light RENAULT KANGOO 1997 KC / 1.G Foult Finding - Injection Workshop Manual

Page 276 of 363

B76531.0
ELECTRONICALLY CONTROLLED HYDRAULIC SYSTEMS
Fault finding - Interpretation of XR25 bargraphs
38
ABS BOSCH
5.3
Erase computer memory(GO**).
Carry out a road test followed by a check with the XR25 kit.AFTER REPAIR
Bargraph 12 left hand side illuminated or flashing
Brake light circuit

12Fiche n° 53
Press the brake pedal while observing right and left bargraph 13.
Are the positions "pedal released" and "pedal depressed" registered?
None.
NOTES
YESCheck the two brake light bulbs and the earth of the rear light units (no
earthing of track 14 across the bulbs when pedal is not depressed ).
NOApply the fault finding described in the interpretation of bargraph 13 right
and left hand side for "Bargraph 13 left hand side extinguished, brake pedal
depressed".
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Page 278 of 363

B76531.0
ELECTRONICALLY CONTROLLED HYDRAULIC SYSTEMS
Fault finding - Interpretation of XR25 bargraphs
38
ABS BOSCH
5.3
AFTER REPAIR
13Fiche n° 53
Bargraph 13 left hand side extinguished, brake pedal depressed
Carry out checks only if illumination of the bargraph is not consistent with the
pedal position. NOTES
Bargraph 13 right and left
Brake pedalIlluminated on left hand side if pedal depressed.
Illuminated on right hand side if pedal not depressed.

BG 13 right remains permanently illuminated.
If brake lights are operating
:
- Ensure continuity between dashboard / rear left R2 connector on track 7 and track 14 of the ABS
computer connector .
Dashboard / ABS R36 intermediate connector (track 8).
If brake lights are not operating
:
- Check condition and adjustment of brake light switch as well as the 15A fuse for the brake lights (in
the passenger compartment connection unit). Replace if necessary.
- Disconnect the brake light switch, then check / ensure presence of + after ignition feed on track A3
of the connector
- Check operation of brake light switch (closed contact between tracks A3 and B1).
- Check and ensure continuity between track B1 of the brake light switch connector and the dashboard
/ rear left hand side R2 connector on track 7.
Bargraph 13 permanently illuminated on left hand side
- Check the condition and adjustment of the brake light switch. Replace if necessary.
- Check the operation of the brake light switch contact (closed contact between tracks A3 and B1).
Replace the brake light switch if there is permanent continuity between the two tracks.
- Check and ensure insulation from 12 volts of the connection between track B1 of the brake light
switch connector and track 14 of the ABS computer connector .
Intermediate connectors : Dashboard / ABS R36 on track 8.
Dashboard / rear left hand side R2 on track 7.
Carry out a road test followed by a check with the XR25 kit.
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B76531.0
ELECTRONICALLY CONTROLLED HYDRAULIC SYSTEMS
Fault finding - Conformity Check38
ABS BOSCH
5.3
Order of
operationsFunction to be checked Action Bargraph Display and Comments
1 XR25 dialogueD11
(selector on
S8)
2 Computer conformity#12
3
Operation of ABS warning
light- computer
initialisation check
IgnitionTwo second illumination of
warning light when ignition is
switched on (consult fault
finding if it remains illuminated
or if it does not illuminate)
4Acknowledgement that
brake pedal is not
pressed
5Acknowledgement that
brake pedal is pressedPress brake
pedal
Only carry out this conformity check after a complete XR25 check.NOTES
13
13
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B76531.0
ELECTRONICALLY CONTROLLED HYDRAULIC SYSTEM
Fault finding - Customer Complaints38
ABS BOSCH
5.3
AFTER REPAIR Carry out a road test, then a check with the XR25 kit.
WARNING LIGHT FAULTS
ABS warning light does not illuminate for 3 seconds after ignition switched on. Chart 1
Chart 2 Permanent illumination of ABS warning light .
Chart 3
FAULTS NOTED WHEN BRAKING WITH ABS REGULATION
Locking of one or more wheels.Chart 4
Pulling.
Chart 6 Wandering.
Chart 7
Unexpected ABS operation when using special equipment
(mobile phone,CB...).
Chart 9
OTHER CASES
ABS warning light does not illuminate, computer disconnected.Chart 14
No communication with ABS computer.
Chart 15 Only consult this section after a complete check with the XR25 kit.
NOTES
ABS warning light illuminates again after engine starts.
Unexpected ABS operation at low speed and little force applied to brake.
Unexpected ABS operation on poor road surface.
Extension of brake pedal travel following a regulation phase
(with an irregular pedal when regulation begins).
Chart 5
Chart 8
Chart 10
Spongy pedal.
Brake pedal vibration.
Noise from pump, pipes or hydraulic assembly .
Chart 11
Chart 12
Chart 13 Chart 3 Temporary illumination of ABS warning light when driving.
38-20