Page 92 of 198

13B-92V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
HEATING SUB-FUNCTION:
*RCH = Passenger Compartment Heating Resistor
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
Coolant
temperaturePR064: Coolant
temperature.
Warm: 90 °CIndicates the coolant temperature
in °C.
Default value: 80°CIn the event of a fault,
consult the interpretation
of parameter PR064
Coolant temperature.
Set number of
RCHET111: Set number of
RCH.
YES - NOThe RCHs* are actuated by the UCH.
They are high current consumers.
Consequently, their use is
conditional on the available power
all the time (alternator power).
The injection checks the balance of
available mechanical power
according to the engine operating
conditions (torque, power, etc.) to
authorise, limit, or stop their use.
(This information is sent via the
CAN network to the UCH).
Note: When the RCHs* are actuated,
the injection system must respond
to a fast idle speed request from the
UCH.NONE
RCH cut-offET112: RCH cut-off
YES - NO
Page 112 of 198

13B-112V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
HEATING SUB-FUNCTION:
*RCH = Passenger Compartment Heating Resistor
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
Coolant
temperaturePR064: Coolant
temperature.
Warm: 90 °CIndicates the coolant temperature in °C.
Default value: 80°C
RCH* number setET111: RCH*
number set.
YES - NOThe RCHs* are actuated by the UCH. They are high
current consumers. Consequently, their use is
conditional on the available power all the time
(alternator power). The injection checks the
balance of available mechanical power according
to the engine operating conditions (torque, power,
etc.) to authorise, limit, or stop their use.
(This information is sent via the CAN to the UCH).
Note: When the RCHs* are actuated, the injection
system must respond to a fast idle speed request
from the UCH.NONE
RCH cut-offET112: RCH*
cut-off
YES - NO
Page 154 of 198
13B-154V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
The command AC029 High pressure circuit sealing test can locate a leak in the high pressure circuit if a union is
incorrectly fitted or screwed on. This command does not identify a union not tightened to torque.
This command can be used only if the engine temperature is greater than 60ºC.
Watch out for any objects (tool or others) on the sides of the engine housing during the 4 accelerations
(possible vibrations).
Run command AC029, the engine will automatically carry out a cycle of four accelerations to increase the rail
pressure. Check if there are leaks on the high pressure circuit.
TEST 7 High pressure circuit sealing check
NOTESSpecial note:
Certain faults make it impossible to carry out this test - deal with these first.
DDCR_V44_TEST07/DDCR_V48_TEST07