Page 151 of 329
13B-151
MR-372-J84-13B050$585.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of statuses
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
ET079
AIR CONDITIONING PRESENT
STATUS DEFINITION"YES": This status indicates that air conditioning is present on the vehicle.
"NO": This status indicates that air conditioning is not present on the vehicle.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
Heating and air conditioning is present depending on the vehicle's equipment level.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C
YES or NO, depending on the vehicle equipment.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET079/SID304_V45_ET079/SID301_V48_ET079/SID304_V49_ET079/SID304_V4D_ET079/SID301_V4C_ET079
Page 152 of 329

13B-152
MR-372-J84-13B050$585.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET088
REQUEST TO START COMPRESSOR
STATUS DEFINITION"ACTIVE": This status indicates that the compressor activation request is active.
"INACTIVE": This status indicates that the compressor activation request is not active.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C
ACTIVE
Status ET088 becomes ACTIVE if there has been a request for air conditioning (press
on AC or AUTO button, with maximum cold request) and status ET004 is YES.
The selection is made on the air conditioning control panel, the request for air
conditioning is transmitted to the UCH which in turn transmits the request to the
injection computer which either authorises or does not authorise compressor activation.
If the injection computer authorises compressor switch-on, the injection computer
sends the compressor switch-on request to the UPC and status ET088 becomes
""ACTIVE" (Climate control).
If the vehicle is equipped with manual air conditioning, the air conditioning request is
transmitted from the air conditioning control panel to the UCH which then accepts or
does not accept the air conditioning compressor coming on depending on the operating
status of the passenger compartment fan. When the request has been accepted, the
request to switch on the compressor is transmitted to the injection computer which
either authorises or does not authorise the compressor to start.
If the injection computer authorises compressor switch-on, it sends the request for
compressor switch-on to the UPC and status ET088 becomes "ACTIVE".
If there has been no compressor switch-on request and status ET088 remains
"ACTIVE", see62A, Air conditioning.
Note: Compressor operation is only authorised when the engine is running.
Compressor activation is commanded by the UPC.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET088/SID304_V45_ET088/SID301_V48_ET088/SID304_V49_ET088/SID304_V4D_ET088/SID301_V4C_ET088
Page 154 of 329

13B-154
MR-372-J84-13B050$585.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET121
CLUTCH CONTACT SIGNAL
STATUS DEFINITION"ACTIVE": This status indicates that the clutch pedal is depressed.
"INACTIVE": This status indicates that the clutch pedal is released.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C
ACTIVE
Clutch pedal depressed
Non-conformity of the brake signals and/or the clutch switch signals can cause the
engine to race during gear changes.
In the event of a fault, consult the interpretation of status ET405 Clutch pedal switch.
INACTIVEClutch pedal released
Non-conformity of the brake signals and/or the clutch switch signals can cause the
engine to race during gear changes.
In the event of a fault, consult the interpretation of status ET405 Clutch pedal switch.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET121/SID304_V45_ET121/SID301_V48_ET121/SID304_V49_ET121/SID304_V4D_ET121/SID301_V4C_ET121
Page 155 of 329

13B-155
MR-372-J84-13B050$585.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET148
OBD WARNING LIGHT ACTIVATION REQUEST
STATUS DEFINITION"OFF": This status indicates that the OBD warning light activation request is not
active.
"ON": This status indicates that the OBD warning light activation request is active.
"FLASHING": This status indicates that OBD warning light activation request is
alternating.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C
OFF
The status is "OFF" when no fault associated with the antipollution system is present or
stored.
ONThe status is "ON" when one or more faults associated with the antipollution system is
present or stored.
Consult the fault summary table to determine the faults associated with activation of the
OBD warning light.
Interpret the present or stored faults.
FLASHINGNONE
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET148/SID304_V45_ET148/SID301_V48_ET148/SID304_V49_ET148/SID304_V4D_ET148/SID301_V4C_ET148
Page 156 of 329

13B-156
MR-372-J84-13B050$585.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET160
PREHEATING RELAY CONTROL
STATUS DEFINITION"ACTIVE": This status indicates that the preheating relay control is active.
"INACTIVE": This status indicates that the preheating relay control is not active.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C
ACTIVE
The status is "ACTIVE" from when the ignition is switched on until the end of pre-
postheating.
The preheating duration varies according to:
●The engine coolant temperature,
●The atmospheric pressure
●The battery voltage.
If the status is inconsistent, consult the interpretation of fault DF017 "Preheating unit
control circuit".
INACTIVEThe status is "INACTIVE" when the engine is started and the engine coolant
temperature is more than 80 °C.
If the status is inconsistent, consult the interpretation of fault DF017 "Preheating unit
control circuit".
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET160/SID304_V45_ET160/SID301_V48_ET160/SID304_V49_ET160/SID304_V4D_ET160/SID301_V4C_ET160
Page 157 of 329

13B-157
MR-372-J84-13B050$624.mif
V17
13B
DIESEL INJECTION
Fault finding – Interpretation of statuses
ET228
CYLINDER 1 INJECTOR CONTROL
STATUS DEFINITIONACTIVE: This status indicates that the cylinder 1 injector control is active.
INACTIVE: This status indicates that the cylinder 1 injector control is not active.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on
ACTIVE
Engine running, engine coolant temperature > 80 °C
ACTIVE
INACTIVE
If the status is ACTIVE, consult the interpretation of fault DF026 Cylinder 1 injector
control circuit.
The status is INACTIVE when the cylinder injector is not being controlled.
The status is ACTIVE when the cylinder injector is being controlled.
If INACTIVE is displayed when the engine is running, consult the interpretation of fault
DF026 Cylinder 1 injector control circuit.
INACTIVE
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET228/SID304_V45_ET228/SID301_V48_ET228/SID304_V49_ET228/SID304_V4D_ET228/SID301_V4C_ET228
MR-372-J84-13B050$624.mif
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
Page 158 of 329

13B-158
MR-372-J84-13B050$624.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET229
CYLINDER 2 INJECTOR CONTROL
STATUS DEFINITIONACTIVE: This status indicates that the cylinder 2 injector control is active.
INACTIVE: This status indicates that the cylinder 2 injector control is not active.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on
ACTIVE
Engine running, engine coolant temperature > 80 °C
If the status is ACTIVE, consult the interpretation of fault DF027 Cylinder 2 injector
control circuit.
INACTIVEThe status is INACTIVE when the cylinder injector is not being controlled.
ACTIVEThe status is ACTIVE when the cylinder injector is being controlled.
INACTIVEIf INACTIVE is displayed when the engine is running, consult the interpretation of fault
DF027 Cylinder 2 injector control circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET229/SID304_V45_ET229/SID301_V48_ET229/SID304_V49_ET229/SID304_V4D_ET229/SID301_V4C_ET229
Page 159 of 329

13B-159
MR-372-J84-13B050$624.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET230
CYLINDER 3 INJECTOR CONTROL
STATUS DEFINITIONACTIVE: This status indicates that the cylinder 3 injector control is active.
INACTIVE: This status indicates that the cylinder 3 injector control is not active.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on
ACTIVE
Engine running, engine coolant temperature > 80 °C
If the status is ACTIVE, consult the interpretation of fault DF028 Cylinder 3 injector
control circuit.
INACTIVEThe status is INACTIVE when the cylinder injector is not being controlled.
ACTIVEThe status is ACTIVE when the cylinder injector is being controlled.
INACTIVEIf INACTIVE is displayed when the engine is running, consult the interpretation of fault
DF028 Cylinder 3 injector control circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET230/SID304_V45_ET230/SID301_V48_ET230/SID304_V49_ET230/SID304_V4D_ET230/SID301_V4C_ET230