Page 181 of 329

13B-181
MR-372-J84-13B050$624.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET704
ET705
BRAKE SWITCH NO. 1
BRAKE SWITCH NO. 2
STATUS DEFINITIONACTIVE: This status indicates that the brake pedal is depressed.
INACTIVE This status indicates that the brake pedal is released.
NOTESSpecial note:
Only perform these tests if the status does not correspond with the system
programming functions.
Use the Wiring Diagram Technical Note for Mégane II ph2, Scénic II ph2, CLIO III,
MODUS and Kangoo II.
Note:
Statuses ET704 and ET705 should change status at the same time. If they do not, consult the interpretation of
faults DF008 Pedal potentiometer circuit gang 1 and DF009 Pedal potentiometer circuit gang 2.
ACTIVE
If the brake lights are working:
– check the continuity and make sure there is no interference resistance on the
following connection:
Connection code 5A between components 160 and 120, 645 and 119.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise
replace it.
If the brake lights are not operational, check:
– the condition and fitting of the brake switch,
– the condition and conformity of the brake light fuse,
– the conformity of the values in the following table:
Continuity between
connectionsInsulation between
connections
Switch pressed
(Brake pedal released)5A and BPT 65G and SP17
Switch released
(Brake pedal depressed)65G and SP17 5A and BPT
or
INACTIVE
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET704/SID304_V45_ET704/SID301_V48_ET704/SID304_V49_ET704/SID304_V4D_ET704/SID301_V4C_ET704
SID301_V44_ET705/SID304_V45_ET705/SID301_V48_ET705/SID304_V49_ET705/SID304_V4D_ET705/SID301_V4C_ET705
Page 273 of 329

13B-273
MR-372-J84-13B050$897.mif
V17
13B
DIESEL INJECTION
Fault finding – Fault Finding Chart
ALP 1 No dialogue with the computer
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Try to establish dialogue with a computer on another vehicle to check that the diagnostic tool is not faulty. If the
tool is not at fault, and dialogue cannot be established with any other computer on the same vehicle, the cause
could be a faulty computer interfering on the multiplex network.
Check the voltage of the battery.
If the battery voltage is not between:
9.5 V < Battery voltage < 17.5 V
Carry out fault finding on the charge circuit (See Technical Note 6014A, Checking the charging circuit or 87G,
Engine compartment connection unit).
Carry out a fault finding procedure on the multiplex network using the diagnostic tool.
– Check the presence and condition of the injection fuses on the UPC and in the engine fuse box.
– Check the connection of the computer connectors and the condition of its connections.
– Check the injection computer earths (quality, oxidation, tightness of earth bolts on the battery terminal).
– Check that the supply to the computer is correct:
Earth on code connection N* 2 of the computer connector.
+After ignition feed on connection code AP of the computer connector.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check that the power supply to the diagnostic socket is correct:
+ before ignition feed on track 16
+ after ignition feed on track 1
Earth on tracks 4 and 5
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If dialogue has still not been established after these checks, contact Techline.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_ALP1 / SID304_V45_ALP1 / SID301_V48_ALP1 / SID304_V49_ALP1 / SID304_V4D_ALP1 / SID301_V4C_ALP1
MR-372-J84-13B050$897.mif
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4CProgram No.: B1 and B2
Page 289 of 329

13B-289
MR-372-J84-13B050$897.mif
V17
DIESEL INJECTION
Fault finding – Fault Finding Chart
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
ALP 16 Engine overheating
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check the cooling system (refer to MR 385 392 364 370 or 417, Mechanical, 19A, Cooling).
Check the injection computer: that the connections and wiring are in good condition, that earths and feeds are
present.
If the wiring is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check the coolant temperature sensor (refer to the interpretation of faults DF001 Coolant temperature sensor
circuit).
Check the condition and connection of the relay/fuse box.
If the wiring is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check that the fan assemblies operate correctly (refer to MR 385 392 364, 370 or 417, Mechanical, 19A,
Cooling).
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_ALP16 / SID304_V45_ALP16 / SID301_V48_ALP16 / SID304_V49_ALP16 / SID304_V4D_ALP16 / SID301_V4C_ALP16