diagram RENAULT SCENIC 2007 J84 / 2.G Power Assisted Steering Workshop Manual

POWER-ASSISTED STEERING
Fault finding – Introduction
36B
36B-2V5 MR-372-J84-36B000$066_fra.mif
136B
EPAS
Vdiag no.: 05, 09,
0DPOWER-ASSISTED STEERING
Fault finding – Introduction
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding procedure applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type
Fault finding procedures (this manual):
–Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu-Schéma (CD-ROM), paper.
Type of diagnostic tools
–CLIP
Special tooling required
3. REMINDER
Procedure
To run fault finding on the vehicle's computers, switch on the ignition in fault finding mode (forced + after ignition
feed).
Proceed as follows:
–vehicle card in reader,
–press and hold start button (longer than 5 seconds) with start-up conditions not fulfilled,
–connect the diagnostic tool and perform the required operations.
To cut off + after ignition feed, proceed as follows:
–disconnect the diagnostic tool,
–press the Start button twice briefly (less than 3 seconds),
–ensure that the + after ignition feed has been cut off by checking that the computer indicator lights on the instrument
panel have gone out. Vehicle(s): Scenic II
Function concerned: EPASComputer name: Electric power assisted steering
Vdiag no.: 05, 09, 0D
Special tooling required
Multimeter
Elé. 1681Universal bornier
DAE_V05_ PRELI/DAE_V09_ PRELI/DAE_V0D_ PRELI
MR-372-J84-36B000$066_fra.mif

POWER-ASSISTED STEERING
Fault finding – Interpretation of faults
36B
36B-20V5 MR-372-J84-36B000$462_fra.mif
EPAS
Vdiag no.: 05, 09,
0D
DF033
PRESENT
OR
STOREDMULTIPLEX NETWORK
DEF: CAN connection fault
NOTESConditions for applying the fault finding procedure to stored faults:
Apply this fault finding procedure.
Priority in the event of a number of faults:
Apply the interpretation of faults DF020 Computer supply and DF023 + after ignition
supply first, if they are present or stored.
Notes:
This fault may cause a reduction in steering assistance with the SERVICE indicator
light + Message.
Run fault finding on the multiplex network.
Carry out the necessary repairs.
Disconnect the 8-track connector from the EPAS computer.
Check the condition and conformity of the connector and its clips (terminals).
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
8-track connector of the EPAS computer
track 5 UCH
track 7 UCH
track 4 Instrument panel
track 6 Instrument panel
(see wiring diagram)
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRClear the stored faults.
Check that the EPAS is working.
Deal with any other faults.
DAE_V05_DF033/DAE_V09_DF033/DAE_V0D_DF033

POWER-ASSISTED STEERING
Fault finding – Conformity check
36B
36B-28V5 MR-372-J84-36B000$528_fra.mif
EPAS
Vdiag no.: 05, 09,
0DPOWER-ASSISTED STEERING
Fault finding – Conformity check
MAIN SCREEN
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Application conditions: engine stopped with the ignition on, without moving the
steering wheel, WHEELS STRAIGHT AHEAD (straight line driving).
FunctionParameter or Status Checked
or ActionDisplay and
notes Fault finding
Computer
electrical supplyPR108:Computer feed voltage10 V < X < 13 VIn the event of a fault with this
parameter, check the insulation,
continuity and absence of
interference resistance on the
computer earths and feeds (see
wiring diagrams). If the fault is still
present, carry out fault finding
on the charge circuit.
Steering wheel
angle (only for
Vdiag 05 and 09)ET020:Steering wheel angle
sensor programmingSTATUS 4In the event of a fault, apply the
interpretation of status ET020.
Multiplex signalsET023:Engine operationSTOPPED or
STALLEDIn the event of a fault, carry out
fault finding on the injection
system and the multiplex
network.
PR003:Vehicle speed0 mphIn the event of a fault, carry out
fault finding on the ABS and the
multiplex network.
Steering motor
powerPR012:Current absorbed by
the motor0 A (+ 1 A)In the event of a fault, apply the
interpretation of parameter
PR012.
AssistancePR014:Level of assistance
available100% (but
assistance
unavailable)In the event of a fault, apply the
interpretation of parameter
PR014.
TemperaturePR008:Computer temperature0˚C < X < 75˚CIn the event of a fault, apply the
interpretation of fault DF001
Motor thermal protection.
DAE_V05_CCONF/DAE_V09_CCONF/DAE_V0D_CCONF
MR-372-J84-36B000$528_fra.mif

POWER-ASSISTED STEERING
Fault finding – Conformity check
36B
36B-31V5 MR-372-J84-36B000$528_fra.mif
EPAS
Vdiag no.: 05, 09,
0D
Sub-function: power
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Application conditions: engine stopped with the ignition on, without moving the
steering wheel, WHEELS STRAIGHT AHEAD (straight line driving).
FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
Computer
electrical supplyPR108:Computer feed
voltage10 V < X < 13 VIn the event of a fault with this
parameter, check the insulation,
continuity and the absence of
interference resistance on the
computer earths and feeds (see
wiring diagrams). If the fault is
still present, carry out fault
finding on the charge circuit.
TemperaturesPR008:Computer
temperature0˚C < X < 75˚CIn the event of a fault, apply the
interpretation of fault DF001
Motor thermal protection.
PR009:Steering motor
temperature0˚C < X < 130˚CIn the event of a fault, apply the
interpretation of fault DF001
Motor thermal protection.
Multiplex signalsET023:Engine operationSTOPPED or
STALLEDIn the event of a fault, carry out
fault finding on the injection
system and the multiplex
network.

POWER-ASSISTED STEERING
Fault finding – Conformity check
36B
36B-32V5 MR-372-J84-36B000$528_fra.mif
EPAS
Vdiag no.: 05, 09,
0D
MAIN SCREEN
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Test conditions: engine at idling speed.
STRAIGHT WHEELS (driving in a straight line).
FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
Computer
electrical supplyPR108:Computer feed
voltage12 V < X < 16 VIn the event of a fault with this
parameter, check the insulation,
continuity and absence of
interference resistance on the
computer earths and feeds (see
wiring diagrams). If the fault is still
present, carry out fault finding on
the charge circuit.
Steering wheel
angle (only for
Vdiag 05 and 09)ET020:Steering wheel
angle sensor
programmingSTATUS 4In the event of a fault, apply the
interpretation of status ET020.
Multiplex signalsET023:Engine operationRUNNINGIn the event of a fault, carry out
fault finding on the injection system
and the multiplex network.
PR003:Vehicle speed0 mphIn the event of a fault, carry out
fault finding on the ABS and the
multiplex network.
Steering motor
powerPR012:Current absorbed
by the motorWithout any action
on the steering
wheel:
0 A (± 1 A)
With action on the
steering wheel:
- 96 A < X <96 AIn the event of a fault, apply the
interpretation of parameter PR012.
AssistancePR014:Level of assistance
available100% (maximum
assistance)In the event of a fault, apply the
interpretation of parameter PR014.
TemperaturePR008:Computer
temperature0˚C < X < 7˚CIn the event of a fault, apply the
interpretation of fault DF001 Motor
thermal protection.

POWER-ASSISTED STEERING
Fault finding – Conformity check
36B
36B-35V5 MR-372-J84-36B000$528_fra.mif
EPAS
Vdiag no.: 05, 09,
0D
Sub-function: power
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Test conditions: engine at idling speed.
FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
Computer
electrical supplyPR108:Computer feed
voltage12 V < X < 16 VIn the event of a fault with this
parameter, check the insulation,
continuity and the absence of
interference resistance on the
computer earths and feeds (see
wiring diagrams). If the fault is still
present, carry out fault finding on
the charge circuit.
TemperaturesPR008:Computer
temperature0˚C < X < 75˚CIn the event of a fault, apply the
interpretation of fault DF001
Motor thermal protection.
PR009:Steering motor
temperature0˚C < X < 130˚CIn the event of a fault, apply the
interpretation of fault DF001
Motor thermal protection.
Multiplex signalsET023:Engine operationRUNNINGIn the event of a fault, carry out
fault finding on the injection
system and the multiplex network.

POWER-ASSISTED STEERING
Fault finding – Fault Finding Chart
36B
36B-57V5 MR-372-J84-36B000$924_fra.mif
EPAS
Vdiag no.: 05, 09,
0D
ALP10The Service indicator light and the Check Steering message
come on straight away
NOTESNone.
Check the conformity of the battery voltage and carry out fault finding on the charge circuit if necessary.
Check the condition and conformity of the ABS computer connector and its clips.
Check that the ABS computer has an electrical feed (see wiring diagram for the ABS fitted on the vehicle).
Disconnect the 8-track electric power assisted steering computer connector.
Check the condition and conformity of the connector and its clips.
Repair if necessary.
Carry out fault finding on the multiplex network, and repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
EPAS computer
(8-track connector)UCH
(PE2 40-track
connector)Protection and
Switching Unit
(CT1 12-track
connector)
track 7 track 8
track 5 track 18
track 6 track 8
track 16 track 1
track 3 ABS computer
track 2 ABS computer
(see wiring
diagram of the ABS
system installed in
the vehicle)
Repair if necessary.
If the previously checked connections are in conformity, contact the Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V05_ALP10/DAE_V09_ALP10/DAE_V0D_ALP10

POWER-ASSISTED STEERING
Fault finding – Fault Finding Chart
36B
36B-58V5 MR-372-J84-36B000$924_fra.mif
EPAS
Vdiag no.: 05, 09,
0D
ALP11Steering assistance is available with ignition on and engine
stopped, with no warning
NOTESNote :
This fault may arise if the multiplex signal for the operating status of the engine is faulty
or after the ignition is switched off and quickly back on without the engine being started.
Ask the client if he does actually operate the vehicle incorrectly in this way before
applying this fault finding procedure. If necessary, explain correct operation to him.
Disconnect the 8-track connector from the EPAS computer.
Check the condition and conformity of the connector and its clips.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
EPAS computer
(8-track connector)UCH
(PE2 40-track connector)Protection and
Switching Unit
(CT1 12-track connector)
track 7 track 8
track 5 track 18
track 6 track 8
track 16 track 1
track 9 Injection
Computer
track 7 Injection
Computer
(see wiring
diagram of the
injection installed
in the vehicle)
Repair if necessary.
Check the consistency of status ET023 Engine operation by comparison with the actual status of the engine.
If the status is not correct, carry out fault finding on the multiplex network (see 88B, Multiplexing) and the injection
(see 13B, Diesel injection and 17B, Petrol injection).
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V05_ALP11/DAE_V09_ALP11/DAE_V0D_ALP11