engine RENAULT KANGOO 2013 X61 / 2.G Power Steering Pump Assembly Workshop Manual

36B-3V1 MR-376-X76-36B000$020.mif
36B
GEPDA
Vdiag No.: 04
Location of components
1 Power assisted steering pump assembly 4 Diagnostic socket
2 Engine interconnection unit 5 Alternator
3 Passenger compartment fuse box
1
23
4
5
POWER-ASSISTED STEERING PUMP ASSEMBLY
Fault finding – List and location of components

36B-7V1 MR-376-X76-36B000$040.mif
36B
GEPDA
Vdiag No.: 04
System outline
The electric power-assisted steering system uses a pump assembly which generates the hydraulic pressure
assistance in the steering circuit. The electric motor turns at a constant speed and the system supplies a constant
level of power-assisted steering.
Operation of the electric power-assisted steering system is managed by a computer integrated into the pump
assembly.
Correct system operation is checked using sensors integrated into the pump assembly of the power-assisted
steering.
The power-assisted steering is only available when the ignition is on and the vehicle engine is running (the presence
of the alternator signal is interpreted by the computer as "engine running").
Functions provided
●Main function
Power-assisted steering: the system supplies a constant level of power-assisted steering. The electric motor of the
pump assembly in the power-assisted steering runs at a constant speed.
●Temperature Protection Function
The temperature of the pump assembly is monitored by two sensors, one for the oil temperature, the other for the
temperature of the internal electronics.
There are two possible cases:
●When the maximum of the two temperatures exceeds the high temperature threshold (107°C), the rotation
speed of the electric motor decreases from 2650 rpm to 800 rpm in increments of 40 rpm each second,
for as long as the temperature exceeds the threshold of 107°C,
●When the maximum of the two temperatures exceeds the overheating temperature threshold (125°C), the
pump assembly switches off and no steering assistance is provided for as long as it takes for the
temperature to return below this threshold.
●Fault finding function
The pump assembly computer includes a self-test procedure function. The required information can be accessed
using the diagnostic tool, by the HK line.
POWER-ASSISTED STEERING PUMP ASSEMBLY
Fault finding – Function

36B-9V1 MR-376-X76-36B000$070.mif
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Vdiag No.: 04
Precautions for use
●The power-assisted steering pump assembly (the computer, the electric motor, the hydraulic pump, the oil
reservoir) cannot be separated.
OPERATIONS FOR REPLACING THE PUMP ASSEMBLY
Before replacing the power-assisted steering pump assembly, perform fault finding on the system and apply the
appropriate fault finding procedure.
The power-assisted steering pump assembly may only be replaced after approval from Techline.
After replacing the pump assembly, calibrate the computer using the diagnostic tool.
When replacing the power-assisted steering pump assembly, perform the following operations:
●disconnect the vehicle battery,
●replace the power-assisted steering pump assembly (see MR 423 Mechanical, 36B, Power-assisted steering,
Power-assisted steering pump assembly: Removal - Refitting),
●reconnect the vehicle battery,
●connect the diagnostic tool, switch on the ignition and establish dialogue with the computer of the power-assisted
steering pump assembly,
●Enter the vehicle VIN using command VP001 Enter VIN (see Programming),
●write the date of the last After-Sales operation using command VP005 Enter After-Sales operation date (see
Programming),
●switch off the ignition for at least 15 seconds for the configurations to register, without disconnecting the battery,
●switch on the ignition and establish dialogue with the computer of the power-assisted steering pump assembly,
●check that there are no faults and that the parameters are correct,
●start the vehicle engine and check that the power-assisted steering pump assembly is operating correctly (power-
assisted steering available with the engine running),
●check that there are no faults and that the parameters are correct. WARNING:
To prevent any accidents, it is essential to disconnect the battery when performing operations on the front axle,
regardless of the operation, to remove the risk of trapping someone between a wheel and the body if the power-
assisted steering is accidentally triggered due to a fault in the pump assembly system.
POWER-ASSISTED STEERING PUMP ASSEMBLY
Fault finding – Replacement of components

36B-15V1 MR-376-X76-36B000$100.mif
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GEPDA
Vdiag No.: 04
Main screen
NOTESOnly perform this conformity check after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Test conditions: Engine stopped, ignition on.
FunctionParameter or status
Checked or actionDisplay
and notesFault finding
Computer
supplyPR108: Computer feed
voltage10 V < PR108 < 16 V.In the event of a fault,
apply the interpretation of
parameter PR108.
Oil
temperaturePR016: Oil temperatureIndicates the oil
temperature in °C. The
sensor is integrated into
the pump assembly.Without any action on the
steering wheel.
Computer
temperaturePR008: Computer
temperatureDisplays the temperature
of the electronics in °C.
The sensor is integrated
into the computer of the
pump assembly.Without any action on the
steering wheel.
GEPDA_V04_CCONF
POWER-ASSISTED STEERING PUMP ASSEMBLY
Fault finding – Conformity check

36B-16V1 MR-376-X76-36B000$100.mif
POWER-ASSISTED STEERING PUMP ASSEMBLY
Fault finding – Conformity check36B
GEPDA
Vdiag No.: 04
Main screen (continued)
NOTESOnly perform this conformity check after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Test conditions: Engine stopped, ignition on.
FunctionParameter or status
Checked or actionDisplay
and notesFault finding
Electric motorPR012: Current absorbed
by the motor0 A < PR012 < 1 A.In the event of a fault,
apply the interpretation of
parameter PR012.
Electric motor
speedPR017: Speed setpoint Indicates the speed of the
electric motor on the
power-assisted steering
pump assembly.
PR004 = PR017 = 0 rpm.In the event of a fault,
apply the interpretation of
parameter PR017
PR004: Engine speed In the event of a fault,
apply the interpretation of
parameter PR004

36B-17V1 MR-376-X76-36B000$100.mif
POWER-ASSISTED STEERING PUMP ASSEMBLY
Fault finding – Conformity check36B
GEPDA
Vdiag No.: 04
Main screen
NOTESOnly perform this conformity check after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Test conditions: Engine idling.
FunctionParameter or status
Checked or actionDisplay
and notesFault finding
Computer
supplyPR108: Computer feed
voltage10 V < PR108 < 16 V.In the event of a fault, apply
the interpretation of parameter
PR108
Oil
temperaturePR016: Oil temperatureIndicates the oil
temperature in °C. The
sensor is integrated
into the pump
assembly.
PR016 < 100°C.The parameter value may
reach 130°C during parking
manoeuvres, but should drop
below 100°C after several
minutes.
Computer
temperaturePR008: Computer
temperatureDisplays the
temperature of the
electronics in °C.
The sensor is
integrated into the
computer of the pump
assembly.
PR008 < 60°C.Exceptionally, the parameter
value may reach 75°C when
the engine is put under great
strain and in a hot ambient
environment.

36B-18V1 MR-376-X76-36B000$100.mif
POWER-ASSISTED STEERING PUMP ASSEMBLY
Fault finding – Conformity check36B
GEPDA
Vdiag No.: 04
Main screen (continued)
NOTESOnly perform this conformity check after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Test conditions: Engine idling.
FunctionParameter or status
Checked or actionDisplay
and notesFault finding
Electric motorPR012: Current absorbed
by the motor5 A < PR012 < 65 A.In the event of a fault, apply
the interpretation of parameter
PR012
Electric motor
speedPR017: Speed setpoint Indicates the speed of
the electric motor on
the power-assisted
steering pump
assembly. PR004 =
PR017= 2650 rpmIn the event of a fault, apply
the interpretation of parameter
PR017
PR004: Engine speed In the event of a fault, apply
the interpretation of parameter
PR004

36B-19V1 MR-376-X76-36B000$110.mif
36B
GEPDA
Vdiag No.: 04
Tool Parameter Diagnostic tool title
PR004Engine speed
PR008Computer temperature
PR012Current absorbed by the motor
PR016Oil temperature
PR017Speed setpoint
PR108Computer feed voltage
POWER-ASSISTED STEERING PUMP ASSEMBLY
Fault finding – Parameter summary table

36B-20
AFTER REPAIRPerform a test using the diagnostic tool.
V1 MR-376-X76-36B000$120.mif
36B
GEPDA
Vdiag No.: 04
PR004ENGINE SPEED
NOTESNone.
Parameter PR004 indicates the actual speed of the electric motor of the power-assisted steering pump assembly.
The value of this parameter should be:
PR004 = 0 rpm (with the engine stopped, ignition on).
PR004 = 2650 rpm (with the engine idling).
The value of parameter PR004 should be roughly equal to the value of parameter PR017 Speed setpoint.
If the parameter does not comply with the value indicated, consult the interpretation of fault DF002 Computer.
GEPDA_V04_PR004
POWER-ASSISTED STEERING PUMP ASSEMBLY
Fault finding – Interpretation of parameters

36B-22
AFTER REPAIRPerform a test using the diagnostic tool.
V1 MR-376-X76-36B000$120.mif
POWER-ASSISTED STEERING PUMP ASSEMBLY
Fault finding – Interpretation of parameters36B
GEPDA
Vdiag No.: 04
PR017SPEED SETPOINT
NOTESNone.
Parameter PR017 indicates the setpoint value for the speed of the electric motor on the power-assisted steering
pump assembly.
The value of this parameter should be:
PR017 = 0 rpm (with the engine stopped, ignition on).
PR017 = 2650 rpm (with the engine idling).
If the value of parameter PR017 does not comply with the value indicated, refer to the interpretation of fault DF055
Computer memory.
GEPDA_V04_PR017