engine RENAULT SCENIC 2008 J84 / 2.G Passenger Comparment Connection Unit Service Manual

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -156V9 MR-372-J84-87B000$473.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET030
AIR CONDITIONING REQUEST 2
NOTESThere must be no present or stored faults.
The engine must be running.
Special note:
This is the request for air conditioning sent by the UCH to the injection computer. This
request may reach the UCH in two ways:
–In the case of a vehicle fitted with manual air conditioning, by pressing on the air
conditioning button.
–In the case of a vehicle fitted with climate control, by request from the user or the
climate control computer in automatic mode.
ET030 Inactive despite a climate control request.
Air conditioning
Manual

Air conditioning
climate control
Verify that status ET169 Engine is Running. If status ET169 is not running, run fault
finding on the injection.
Check that status ET029 Air conditioning button is PRESSED by pressing the
button. If status ET029 is RELEASED carry out fault finding on this status.
Verify that status ET015 Passenger compartment ventilation is ACTIVE. If status
ET015 is INACTIVE carry out fault finding on this status.
If the fault is still present, contact the Techline.
Carry out fault finding on the climate control computer (see 62C, Manual air
conditioning).
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_ET030/UCH_V48_ET030/ UCH_V4C_ET030/
UCH_V4D_ET030 /UCH_V4F_ET030/UCH_V50_ET030

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -157
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -157V9 MR-372-J84-87B000$473.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
*RCH = Passenger Compartment Heating ResistorET031
FAST IDLE SPEED REQUEST FOR RCH
NOTESThere must be no present or stored faults.
ET031 Inactive with engine at idling speed with the passenger compartment heating resistors switched on.
In case of inconsistency, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_ET031/UCH_V48_ET031/ UCH_V4C_ET031/
UCH_V4D_ET031 /UCH_V4F_ET031/UCH_V50_ET031

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -165
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -165V9 MR-372-J84-87B000$473.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET046
ENGINE IMMOBILISER
NOTESThere must be no present or stored faults.
ET046 Active with starting request but no after ignition present.
Apply the fault finding procedure for ALP 41 The vehicle does not start and after ignition feed fails with the
card in the card reader.
ET046 Active supply level after ignition feed present.
Check and repair if necessary:
Status of engine immobiliser in the injection system; if ACTIVE, check the injection computer.
If the fault is still present, contact your Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_ET046/UCH_V48_ET046/ UCH_V4C_ET046/
UCH_V4D_ET046 /UCH_V4F_ET046/UCH_V50_ET046

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 226
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 226V9 MR-372-J84-87B000$559.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET110
UCH REQUEST TO INJECTION COMPUTER OR PROTECTION
AND SWITCHING UNIT
NOTESNo faults should be present or stored.
This status gives information concerning the type of request made by the UCH to these computers.
"ENGINE STOP": when an engine stop is requested.
"INACTIVE": without action on the vehicle.
"+ AFTER IGNITION FEED": on pressing the start button for more than 5 seconds.
"START": when starting is requested.
If the status does not correspond to the current user request, carry out a test of the multiplex network.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_ET110/UCH_V48_ET110/UCH_V4C_ET110/
UCH_V4D_ET110/UCH_V4F_ET110/UCH_V50_ET110

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 236
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 236V9 MR-372-J84-87B000$602.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET169
Engine
NOTESNo faults should be present or stored.
In the event of an inconsistency, test the multiplex network (see 88B, Multiplexing).
Run fault finding on the injection system (see 13B, Diesel injection, or see 17B, Petrol injection or 17C,
Gas injection).
If the fault is still present, contact Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_ET169/UCH_V48_ET169/ UCH_V4C_ET169/
UCH_V4D_ET169 /UCH_V4F_ET169/UCH_V50_ET169

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 237
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 237V9 MR-372-J84-87B000$602.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET229
INJECTION IMMOBILISER CODE
NOTESNo faults should be present or stored.
Apply the checks only if the status remains INCORRECT after the ignition is switched
off and back on.
INCORRECT
Try to start the vehicle, ensuring that the steering column lock unlocks properly and that
the + after ignition feed has been established on the vehicle using ET014 Control
power level.
First check the operation of status ET046 Engine immobiliser.
Carry out a multiplex network test.
Run fault finding on the injection system.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_ET229/UCH_V48_ET229/ UCH_V4C_ET229/
UCH_V4D_ET229 /UCH_V4F_ET229/UCH_V50_ET229

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of parameters
87B
87B -241
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of parameters
87B
87B -241V9 MR-372-J84-87B000$688.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of parameters
PR001
BATTERY VOLTAGE
NOTESCheck that the battery terminals are correctly tightened.
Check the consistency between the battery voltage measurement from the multimeter and the value of PR004
Battery voltage.
Engine stopped: 11 V < X < 13.5 V.
Engine running: 10.5 V < X < 16 V.
If the voltage values are not consistent (greater than 0.3 V difference between the 2 values), check the connection
between the + battery feed and the Protection and Switching Unit.
If the values are consistent, run fault finding on the battery and charging circuit (see Technical Note 6014A,
Checking the charging circuit, 16A, Starting - Charging).
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_PR001/UCH_V48_PR001/UCH_V4C_PR001 /
UCH_V4D_PR001/ UCH_V4F_PR001/UCH_V50_PR001
MR-372-J84-87B000$688.mif

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
87B
87B -297
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
87B
87B -297V9 MR-372-J84-87B000$860.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ANTITHEFT AND STARTING RECORDED FAULTS
NO + ACCESSORIES FEED ALP39
FORCED AFTER-IGNITION FEED FAILS ALP40
THE VEHICLE DOES NOT START AND THE AFTER IGNITION FEED
FAILS, CARD IN THE CARD READERALP41
THE VEHICLE DOES NOT START, THE AFTER IGNITION FEED
FAILS IN HANDS-FREE MODE BUT WORKS WITH THE CARD IN THE
CARD READERALP42
THE VEHICLE FAILS TO START AND GOES INTO AFTER IGNITION
FEEDALP43
THE STARTER BRIEFLY RUNS BUT THE VEHICLE FAILS TO START
AND GOES INTO AFTER IGNITION FEEDALP44
IMPOSSIBLE TO SHUT OFF ENGINE ALP45
STEERING COLUMN LOCK DOES NOT LOCK ALP46
STEERING COLUMN LOCK DOES NOT UNLOCK ALP47
STARTING ERRATIC ALP48

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
87B -368
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
87B -368V9 MR-372-J84-87B000$989mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP43 The vehicle fails to start and goes into after ignition feed
NOTESCheck the voltage of the battery.
Carry out a fault finding procedure on the function.
Make sure the start-up conditions are met (no gear engaged).
The engine immobiliser warning light can be used to check if the injection is still
protected (lit continuously).
Check the conformity of the antitheft and starting components.
Check that status ET110 UCH request to injection or UPC is START if the start-up conditions are met when
the start button is pressed.
If there is a fault, see the procedure for this status.
If everything is ok, run fault finding on the ignition circuit in the Protection and Switching Unit.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP43 /UCH_V48_ALP43/UCH_V4C_ALP43/
UCH_V4D_ALP43/UCH_V4F_ALP43/UCH_V50_ALP43

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
87B -369
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
87B -369V9 MR-372-J84-87B000$989mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP44The starter briefly runs but the vehicle fails to start and goes into
after ignition feed
NOTESCarry out a fault finding procedure on the function.
Check the conformity of the antitheft and starting components.
The engine immobiliser warning light can be used to see if the injection is still protected
(if it remains on).
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP44 /UCH_V48_ALP44/UCH_V4C_ALP44/
UCH_V4D_ALP44/UCH_V4F_ALP44/UCH_V50_ALP44