36B-3
MR-413-X44-36B000$067.mif
V2
POWER – ASSISTED STEERING
Fault finding – Introduction
EPAS
Vdiag No.: 04 - 08
36B
Faults
Faults are declared present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but are not diagnosed within the current context).
The present or stored status of faults should be taken into consideration when the diagnostic tool is switched on
after the + after ignition feed (without any system components being active).
For a present fault, apply the procedure described in the Interpretation of faults section.
For a stored fault, note the faults displayed and apply the instructions in the Notes section.
If the fault is confirmed when the instructions in the Notes section are applied, the fault is present. Deal with
the fault.
If the fault is not confirmed, check:
–the electrical lines which correspond to the fault,
–the connectors on these lines (corrosion, bent pins, etc.),
–the resistance of the component detected as defective,
–the condition of the wires (melted or split insulation, wear).
Conformity check
The aim of the conformity check is to check data that does not produce a fault on the diagnostic tool because the
data is inconsistent. Therefore, this stage is used to:
–carry out fault finding on faults that do not have a fault display, and which may correspond to a customer
complaint.
–check that the system is operating correctly and that there is no risk of a fault recurring after repairs.
This section gives the fault finding procedures for statuses and parameters and the conditions for checking them.
If a status is not behaving normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding page.
Customer complaints - Fault finding chart
If the test with the diagnostic tool is OK but the customer complaint is still present, the fault should be processed by
customer complaints.
A summary of the overall procedure to follow is provided on the following page in
the form of a flow chart.
36B-16
MR-413-X44-36B000$469.mif
V2
EPAS
Vdiag No.: 04 - 08
36B
DF001
PRESENT
OR
STOREDMOTOR THERMAL PROTECTION
DEF: Operating temperature too high
NOTESConditions for applying the fault finding procedure to stored faults:
Apply this fault finding procedure even if the fault is stored.
Notes:
This fault does not indicate a system failure, but indicates overheating either of the
Electric Power-Assisted Steering (EPAS) motor or of the computer during repeated
manoeuvres.This fault may appear after the steering wheel is moved repeatedly
(parking) and causes a gradual reduction in steering but the fault warning light does
not come on.
Use the diagnostic tool to check the conformity of PR129 Motor power (60 A) and PR130 Motor power (45 A)
(zero in absence of PR001 Torque applied to steering wheel).
Contact the Techline in the event of any nonconformity.
Check the conformity of the computer and steering column (45 or 60 A) in relation to the table below:
Left-hand drive Right-hand drive
Torque sensor wiring harness blue black
Motor wiring45 Agreen black
Motor wiring60 Ablue grey
45 A 60 A
Computer label yellow white
In the event of a nonconformity, consult "RENAULT NET" to repair the vehicle according to the technical vehicle
definition.
Disconnect the battery then allow the electric power-assisted steering to cool down.
Reconnect the battery, clear the faults, start the vehicle and check the operation of the electric power-assisted
steering by turning the steering wheel full lock to the left or right.
The fault should not recur in the next 30 seconds.
If the fault recurs as present or stored, contact the Techline.
AFTER REPAIRDeal with any other faults.
Clear the stored faults.
Check that the EPAS is working.
DAE_V04_DF001 /DAE_V08_DF001
POWER – ASSISTED STEERING
Fault finding – Interpretation of faults
36B-49
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
ALP 7 PERMANENT ASSISTANCE
NOTESOnly consult this customer complaint after a complete check with the
diagnostic tool.
Check the conformity of the computer and the steering column (45 or 60 A) in relation to the table below:
Left-hand drive Right-hand drive
Torque sensor wiring harness blue black
Motor wiring 45 A green black
Motor wiring 60 A blue grey
45 A 60 A
ECU label yellow white
In the event of non-conformity, consult RENAULT NET to repair the vehicle according to the technical vehicle
definition.
Check that the configuration reading LC002 Strategy number corresponds to the vehicle equipment.
Configure the computer correctly using the diagnostic tool, if necessary (see Configuration).
Check the pressure and condition of the tyres, the condition of the joints and the front axle geometry.
If the fault is still present, contact Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_ALP7/ DAE_V08_ALP7
