2011 RENAULT SCENIC air conditioning

13B-91V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
COLD LOOP SUB-FUNCTION (continued 2):
* When the air conditioning is requested with the engine idling and the vehicle speed = 0 mph (0 km/h),
ET022 will always be ACTIVE and ET021 INACTIVE (unless refrigerant pressure > 15 bar, vehicle speed
= 0 mph, and high coolant temperature). The fan assemblies are disabled under certain coolant temperature
conditions when driving.
When the UPC stops receiving multiplex transmissions from the injection, the fan assemblies are
constantly activated.
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
Vehicle speedPR089: Vehicle
speed.Indicates the vehicle speed in mph.
This parameter is transmitted by the
ABS computer or by the vehicle
speed ECU. This signal is
transmitted to the injection system
on the multiplex network.Test the multiplex network.
Refer to fault finding for the
ABS or the vehicle speed
ECU.
Power consumed
by the air
conditioning
compressorPR125: Power
consumed by the air
conditioning
compressor.
0 WIndicates the power consumed by
the compressor.NONE
Speed request
for fan
assembly*ET022: Low speed
fan assembly
request.
INACTIVE.The injection requests the UPC to
start the fans.
- INACTIVE: Because engine speed
= 0 rpm.
- ACTIVE: Engine speed = idle
speed, correct refrigerant pressure
and vehicle speed = 0 mph (km/h),
or high coolant temperature.NONE
Speed request
for fan
assembly*ET021: High speed
fan assembly
request.
INACTIVE.The injection requests the UPC to
start the fans.
- INACTIVE: Because engine speed
= 0 rpm.
- ACTIVE: Engine speed = idle
speed. Refrigerant pressure
> 15 bar, vehicle speed = 0 mph,
or high coolant temperature.NONE

13B-109V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
COLD LOOP SUB-FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or
Status Check
or actionDisplay and notes Fault finding
Air conditioning
presentET079: Air
conditioning
present.
YESIndicates whether the vehicle is fitted with air
conditioning or not.
- YES: Air conditioning is detected by the injection
computer.
- NO: Air conditioning is not detected by the
injection computer.If inconsistent with
the vehicle
equipment, perform
a multiplex network
test and apply the
associated
procedure.
Compressor
activation
requestET088:
Compressor
activation
request.
INACTIVEThe injection requests the Protection and
Switching Unit (via the multiplex network) to
start the compressor.
- ACTIVE: The multiplex network must not be faulty
on the Automatic transmission, Protection and
Switching Unit, or UCH systems. The UCH should
request the injection to be engaged. The coolant
pressure sensor must not be defective. Satisfactory
engine operating conditions (coolant temperature,
engine load etc.).
- INACTIVE: One of the above conditions has not
been met or no request has been made by the
driver, so ET004 = NO.NONE
Air conditioning
authorisedET004: Air
conditioning
authorised.
NONon operational information, designed solely
for fault finding purposes.
- YES: Satisfactory engine operating conditions
(coolant temperature, engine load, etc.). The
vehicle is not in a specific movement phase (hill
start, start from stop etc.).
- NO: One of the above conditions has not been
met or no request has been made by the driver, so
ET088 = INACTIVE.NONE

13B-111V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
COLD LOOP SUB-FUNCTION (continued 2):
*When the air conditioning is requested with the engine idling and the vehicle speed = 0 mph (0 km/h),
ET022 will always be ACTIVE and ET021 INACTIVE (unless refrigerant pressure > 15 bar, vehicle speed
= 0 mph (0 km/h) and high coolant temperature). The fan assemblies are disabled under certain coolant
temperature conditions when driving.
When the UPC stops receiving multiplex transmissions from the injection, the fan assemblies are
constantly activated.
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or
Status Check or
actionDisplay and notes Fault finding
Power consumed
by the air
conditioning
compressorPR125: Power
consumed by the
air conditioning
compressor.
0 WATTIndicates the power consumed by the
compressor.NONE
Fan assembly
speed request*ET022: Low speed
fan assembly
request.
INACTIVE.The injection requests the UPC to start the fans.
- INACTIVE: The request was not made by the
injection because ET088 = INACTIVE and ET004
=NO.
- ACTIVE: The request was made by the injection.
ET088 = ACTIVE and ET004 = YES.
(Correct refrigerant pressure and vehicle speed
= 0 mph (0 km/h) or high coolant temperature).
NONE
ET021: High
speed fan
assembly request.
INACTIVE.The injection requests the UPC to start the fans.
- INACTIVE: The request was not made by the
injection because ET088 = INACTIVE and ET004
=NO.
- ACTIVE: The request was made by the injection.
ET088 = ACTIVE and ET004 = YES.
(Refrigerant pressure > 15 bar and vehicle speed
= 0 mph or high engine coolant temperature).

13B-124V4 MR-372-J84-13B000$080.mif
13B
DDCR INJECTION
Vdiag No.: 44, 48
* RCH = passenger compartment heating resistor: TOOL STATE DIAGNOSTIC TOOL DESCRIPTION
ET001 + After ignition computer feed
ET003 Engine immobiliser
ET004 Air conditioning authorised.
ET006 Code programmed
ET008 EGR solenoid valve control
ET021 High speed fan assembly request
ET022 Low speed fan assembly request
ET023 Fast idle speed request
ET038 Engine
ET042 Cruise control/speed limiter
ET076 Starting
ET079 Air conditioning present
ET088 Compressor actuation request
ET405 Clutch pedal switch
ET415 Deactivation of cruise control/speed limiter
ET563 Flow capacity function.
ET111 RCH* number set
ET112 RCH* cut-off
ET703 Cruise control/speed limiter button
ET704 Brakecontact No 1
ET705 Brakecontact No 2
DIESEL INJECTION
Fault finding – Status summary table

13B-143V4 MR-372-J84-13B000$100.mif
13B
DDCR INJECTION
Vdiag No.: 44, 48
* Heat.: HeatingTool parameter DIAGNOSTIC TOOL DESCRIPTION
PR005 EGR valve opening setpoint
PR008 Rail pressure set point
PR009 Turbocharging pressure setpoint
PR010 Idle speed regulation setpoint
PR017 Fuel flow
PR073 Air flowmeter supply voltage
PR028 Pedal position (gang 1)
PR029 Pedal position (gang 2)
PR030 Accelerator pedal position
PR032 Inlet pressure
PR035 Atmospheric pressure
PR037 Refrigerant pressure
PR038 Rail pressure
PR051 EGR valve position feedbac
PR055 Engine speed
PR059 Inlet air temperature (invalid in K9K 728)
PR061 External air temperature
PR063 Fuel temperature
PR064 Coolant temperature
PR074 Battery voltage
PR077 EGR valve position sensor voltage
PR080 Rail pressure sensor voltage
PR081 Inlet temperature sensor voltage
PR088 Pedal potentiometer gang 2 voltage
PR089 Vehicle speed
PR125 Power absorbed by air conditioning compressor
PR127 Heat.* resistor maximum authorised power
PR130 Cruise control setpoint
PR132 Air flow
DIESEL INJECTION
Fault finding – Parameter summary table