wiring diagram RENAULT SCENIC 2013 J95 / 3.G Electronic Parking Brake User Guide

37B-69
MR-372-J84-37B000$504.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of faults37B
DF059
CONTINUED
Use the diagnostic tool to carry out a multiplex system test.
This check ensures that the various multiplex system connections are correct and finds any faulty segments.
Carry out any necessary repairs.
If the multiplex network test did not find the faulty connection, carry out a conformity check to check that the
status from the Protection and Switching Unit computer is present and correct (ET016, PR015, PR017).
Check the gearbox contacts.
If the status and parameters shown here are not correct, carry out fault finding on the Protection and Switching
Unit (see 87G, Engine compartment connection unit).
If the fault is still present, disconnect the Protection and Switching Unit computer connector to check that the
connector and its clips (terminals) are in good condition, especially the multiplex track clips (see the wiring
diagram of the Protection and Switching Unit fitted to the vehicle).
Replace the clips if necessary.
If the fault persists, contact the Techline.
AFTER REPAIRIf the computer has been replaced (at the request of the Techline), initialise the
electronic parking brake computer (see Replacement of components).
Issue several braking and release commands to confirm the repair.
Deal with any other faults.
FPA
Vdiag No.: 0C, 08, 0D,
11

37B-71
MR-372-J84-37B000$576.mif
V11
37B
ELECTRONIC PARKING BRAKE
Fault finding – Conformity check
MAIN SCREEN
NOTESOnly carry out this conformity check after carrying out a complete check using the
diagnostic tool.
Application conditions: ignition on (forced + after ignition, see Introduction)
Note:
The interpretation of these statuses and parameters is only valid with the
ignition switched on, the statuses and parameters displayed in blue on the
diagnostic tool is information supplied by other computers, which are transmitted via
the multiplex network. If these variables display inconsistent values, make sure that
the multiplex system test has not shown up any faulty connections. Repair the faulty
multiplex connections before looking for a possible problem with the signals.
Each sub-function in this test is associated with a Fault finding chart.
Special notes:
The diagnostic tool may display the message Computer busy when displaying
statuses and parameters. This message is displayed when the parking brake is
applying or releasing the brake, because the computer gives priority to controlling the
motor before transmitting variables. If this message is displayed, exit the current
screen and then return to it.
Order FunctionParameter or Status
Checked or ActionDisplay
and notesFault finding
1Parking brake
operation statusET024:System operationCUSTOMER MODEIf the status displays FACTORY
MODE, the computer is not
operational.
To enter CUSTOMER MODE,
initialise the computer again, by
running command VP011
Computer calibration and
initialisation (see
Replacement of components).
2Computer
electrical supplyET001:+ After ignition
feedIgnition off: ABSENT
Ignition on: PRESENTIn the event of a fault on this
status, refer to the interpretation
of status ET001: + after
ignition supply.
PR001:Battery voltage9.6V not within this range, check the
insulation, continuity and the
absence of interference
resistance on the computer
supplies and earths (see wiring
diagram). If the fault is still
present, carry out fault finding
on the charging circuit (see
Technical Note 6014A,
Checking the charging
circuit).
FPA_V0C_CCONF / FPA_V04_CCONF / FPA_V08_CCONF / FPA_V0D_CCONF / FPA_V11_CCONF
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
MR-372-J84-37B000$576.mif

37B-74
MR-372-J84-37B000$576.mif
V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11ELECTRONIC PARKING BRAKE
Fault finding – Conformity check37B
SUB FUNCTION: PARKING
NOTESOnly carry out this conformity check after carrying out a complete check using the
diagnostic tool.
Application conditions: ignition on (forced + after ignition, see Introduction)
Note:
The interpretation of these statuses and parameters is only valid with the
ignition switched on, the statuses and parameters displayed in blue on the
diagnostic tool is information supplied by other computers, which are transmitted via
the multiplex network. If these variables display inconsistent values, make sure that
the multiplex system test has not shown up any faulty connections. Repair the faulty
multiplex connections before looking for a possible problem with the signals.
Each sub-function in this test is associated with a Fault finding chart.
Special notes
The diagnostic tool may display the message Computer busy when displaying
statuses and parameters. This message is displayed when the parking brake is
applying or releasing the brake, because the computer gives priority to controlling the
motor before transmitting variables. If this message is displayed, exit the current
screen and then return to it.
Order FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
1Computer
electrical supplyET001:+ After ignition
feedIgnition off: ABSENT
Ignition on:
PRESENTIn the event of a fault on this
status, refer to the interpretation of
status ET001: + after ignition
supply.
PR001:Battery voltage9V parameter, check the insulation,
continuity and the absence of
interference resistance on the
computer supplies and earths
(see wiring diagram). If the fault is
still present, carry out fault
finding on the charging circuit
(see Technical Note 6014A,
Checking the charging circuit).
ET009:Redundant
braking switch
positionLever released:
INACTIVE
Lever pulled to the
second contact (end of
travel):
ACTIVEIf the status does not operate as
specified, use the interpretation
of status ET009 Redundant
braking switch position.
ET010:Release switch
positionLever in rest position
RELEASED
Lever fully pulled and
releasing switch
pressed: PRESSEDIf the status does not operate as
specified, apply the
interpretation of status ET010
Releasing switch position.

37B-94
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V11
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
ET001
+ AFTER IGNITION FEED
NOTESNone
This status means there is a + 12 V computer after ignition.
When the ignition is switched off, the status displays: ABSENT.
When the ignition is switched on, the status displays: PRESENT.
If the status does not operate as specified: disconnect the electronic parking brake computer connector to check
the insulation, continuity and the absence of interference resistance on the following connections:
Automatic parking brake computer connector
track H4
(except Laguna II, Vel Satis and Espace IV) track G4 + 12 V
track H2
(except Laguna II, Vel Satis and Espace IV) track G2 earth
Repair if necessary (see the vehicle wiring diagram).
If the connections are correct, the power is correctly supplied to the electronic parking brake computer, but the
fault is still present, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
FPA_V0C_ET001 / FPA_V04_ET001 / FPA_V08_ET001 / FPA_V0D_ET001 / FPA_V11_ET001
ELECTRONIC PARKING BRAKE
Fault finding – Interpretation of statuses

37B-105
MR-372-J84-37B000$936.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Fault finding chart
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
ALP1 No dialogue with the computer
NOTESNone.
Try the diagnostic tool on another vehicle.
Check:
– the connection between the diagnostic tool and the diagnostic sensor (wiring in good condition),
– the connection between the diagnostic sensor and the diagnostic socket (lead in good condition),
– the engine and passenger compartment fuses.
Check for + 12 V battery on track 16, and + 12 V after ignition feed on track 1 and an earth on track 5 and on
track 4 of the diagnostic socket.
Repair if necessary.
Disconnect the automatic or electronic parking brake computer connector to check the insulation, continuity
and absence of interference resistance on the following connections:
Automatic parking brake computer connector
track H4
(except Laguna II, Vel Satis and Espace IV) track G4 + 12 V
track H2
(except Laguna II, Vel Satis and Espace IV) track G2 earth
track A4 track 7 of the diagnostic socket (K line)
Repair if necessary (see the vehicle wiring diagram).
AFTER REPAIRCarry out a check using the diagnostic tool.
Deal with any other faults.
FPA_V0C_ALP1 / FPA_V04_ALP1 / FPA_V08_ALP1 / FPA_V0D_ALP1 / FPA_V11_ALP1
ELECTRONIC PARKING BRAKE
Fault finding – Fault finding chart
MR-372-J84-37B000$936.mif

37B-106
MR-372-J84-37B000$936.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Fault finding chart
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
ALP2 Will not release
NOTESOnly consult this customer complaint after a full check using the diagnostic tool
(no present or stored faults).
The main causes of the brake not releasing are:
– Driver's door incorrectly closed (on vehicles with an automatic transmission).
– Insufficient acceleration value.
– Fault with gearbox switch.
– Fault with door switch.
– Pads stuck.
– Incorrect multiplex line signals.
If the manual release will not work, see ALP 4
(see the wiring diagrams technical note for the vehicle concerned).
Check that the force applied to the accelerator pedal is sufficient whether or not the vehicle is on a downward
slope or not.
For a vehicle fitted with an automatic transmission, check that the door on the driver's side is not open or
incorrectly closed.
Close the door again and go back through neutral if necessary.
Check that the interior lights have gone out.
Check that the door switch is working correctly:
Check the insulation, continuity and the absence of interference resistance on the following connections:
– connection code 87H
– connection code MA
Between the door switch, component code 140 and the UCH, component code 645.
If there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
Repair if necessary.
Check that the force applied to the accelerator pedal is sufficient and that the accelerator value is sufficient (refer
to the conformity check) whether the vehicle is on a downward slope or not.
AFTER REPAIRCarry out a check using the diagnostic tool.
Deal with any other faults.
FPA_V0C_ALP2 / FPA_V04_ALP2 / FPA_V08_ALP2 / FPA_V0D_ALP2 / FPA_V11_ALP2

37B-109
MR-372-J84-37B000$936.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Fault finding chart
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
ALP3 Assisted release too early or too late
NOTESOnly consult this customer complaint after a full check using the diagnostic tool
(no present or stored faults).
(see the wiring diagrams technical note for the vehicle concerned).
Assisted release may be activated too late if a trailer is attached to the vehicle.
Test assisted release without the trailer.
Test the braking system:
Look for any areas where the brake pads may be sticking (due to ice, salt, etc.).
Check that the brake piston is operating correctly.
Repair if necessary.
Check the clutch sensor positioning:
●Espace IV and Vel Satis
Check the insulation, continuity and the absence of interference resistance on the following connections:
– connection code 150K,
– connection code 150L,
– connection code 26X.
Between the electronic parking brake computer, component code 1217 and the clutch position sensor,
component code 1057.
If there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace the wiring.
Reposition it, if necessary.
Replace the clutch sensor if necessary (see MR405 (Espace IV) or MR395 (Laguna II) or MR370 (Scénic),
Mechanical, 37A, Mechanical component controls, Clutch pedal position sensor: Removal - Refitting or
MR353 (Vel Satis ph 1), Mechanical, 37A, Mechanical component controls, Clutch pedal or MR402 (Vel
Satis ph 2), Mechanical, 37A, Mechanical component controls, Clutch pedal switch: Removal - Refitting).
●Laguna II and Scénic II
Check the insulation, continuity and the absence of interference resistance on the following connections:
– connection code 150Q,
– connection code 150L.
Between the electronic parking brake computer, component code 1217 and the clutch pedal sensor,
component code 675 (see section 87B, UCH, Door switch).
1. Laguna II:
Check the continuity and absence of interference resistance on the following connection:
– connection code 86D
Between the injection computer, component code 120 and the clutch pedal switch, component code 675.
AFTER REPAIRCarry out a check using the diagnostic tool.
Deal with any other faults.
FPA_V0C_ALP3 / FPA_V04_ALP3 / FPA_V08_ALP3 / FPA_V0D_ALP3 / FPA_V11_ALP3

3 7 B - 111
MR-372-J84-37B000$936.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Fault finding chart
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
ALP4 Assisted braking fault (when the engine is stopped)
NOTESOnly consult this customer complaint after a full check using the diagnostic tool
(no present or stored faults).
(see the wiring diagrams technical note for the vehicle concerned).
Check for any potential faults in the ABS computer (see 38C, Anti-lock braking system), the UCH computer
(see 87B, Passenger compartment connection unit) and the injection computer (see 13B, Diesel injection or
17B, Petrol injection) to ensure that they have actually received a request to stop the engine.
Test the application of the electronic parking brake with the engine switched off.
Incorrect signal faults on the multiplex line.
Run a multiplex network test (see88B, Multiplex).
When the engine stalls, the automatic brake application function is not active.
Check the + 12 V supply, the insulation, continuity and the absence of interference resistance on the
following connection:
– connection code BP2
Between the electronic parking brake computer, component code 1217 and the battery, component code 107.
If the continuity is correct, test the charging circuit (see Technical Note 6014A, Checking the charging circuit).
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a check using the diagnostic tool.
Deal with any other faults.
FPA_V0C_ALP4 / FPA_V04_ALP4 / FPA_V08_ALP4 / FPA_V0D_ALP4 / FPA_V11_ALP4

37B-112
MR-372-J84-37B000$936.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Fault finding chart
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
ALP5 Impossible to manually release electronic parking brake
NOTESOnly consult this customer complaint after a full check using the diagnostic tool
(no present or stored faults).
(see the wiring diagrams technical note for the vehicle concerned).
Check any incorrect signals on the multiplex line.
Run a multiplex network test (see88B, Multiplex).
Check that the card is correctly inserted for a card reader, scenario 1 (not hands-free).
If not, refer to the fault finding procedure for the UCH (see 87B, Passenger compartment connection unit).
Reposition it, if necessary.
Check that the steering column is unlocked.
Check the + 12 V supply, the insulation, continuity and the absence of interference resistance on the
following connection:
– connection code BP2
Between the electronic parking brake computer, component code 1217 and the battery, component code 107.
If the continuity is correct, test the charging circuit (see Technical Note 6014A, Checking the charging circuit).
Repair if necessary.
Check the operation of the release switch.
Check the continuity of the following connection codes:
– connection code 150P,
– connection code 150N,
– connection code 150B,
– connection code 150G,
Between the control unit of the electronic parking brake lever, component code 1216 and the electronic parking
brake computer, component code 1217.
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a check using the diagnostic tool.
Deal with any other faults.
FPA_V0C_ALP5 / FPA_V04_ALP5 / FPA_V08_ALP5 / FPA_V0D_ALP5 / FPA_V11_ALP5

37B-115
MR-372-J84-37B000$936.mif
V11
ELECTRONIC PARKING BRAKE
Fault finding – Fault finding chart
FPA
Vdiag No.: 0C, 04, 08,
0D, 11
37B
ALP8 The electronic parking brake does not apply correctly on a slope
NOTESOnly consult this customer complaint after a full check using the diagnostic tool
(no present or stored faults).
(see the wiring diagrams technical note for the vehicle concerned).
Check that the vehicle is correctly gripping the ground.
Check that the vehicle is not outside the limits.
Check the + 12 V supply, the insulation, continuity and the absence of interference resistance on the
following connection:
– connection code BP2
Between the electronic parking brake computer, component code 1217 and the battery, component code 107.
If the continuity is correct, test the charging circuit (see Technical Note 6014A, Checking the charging circuit).
Repair if necessary.
Check the condition of the brake pads (wear, fitting, insufficient running in, etc.).
Replace if necessary.
Check the condition of the brake callipers.
Repair if necessary.
Check the fitting of the pressure plate between the electronic parking brake and the brake calliper.
Refit if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a check using the diagnostic tool.
Deal with any other faults.
FPA_V0C_ALP8 / FPA_V04_ALP8 / FPA_V08_ALP8 / FPA_V0D_ALP8 / FPA_V11_ALP8