2011 RENAULT SCENIC cooling

13B-310
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
AC038
LOW-SPEED FAN ASSEMBLY RELAY
NOTESThere must be no present or stored faults.
Perform this fault finding procedure if a malfunction appears on the command menu
or after an engine cooling system or air conditioning fault.
Refer to the Wiring diagrams Technical Note for the vehicle to locate the fuses and
relays concerned.
If the low-speed fan assembly relay does not operate when command AC038 is run:
Check the low speed fan relay mounting and the connections of the engine management computer.
Repair if necessary.
If the fault is still present, check that the relay is actuated by the engine management computer as follows:
Disconnect the low-speed fan assembly relay, fit a 50 Ω < X < 100 Ω resistor on the relay mounting in place of
the coil, and connect a voltmeter as follows:
Positive terminal to the +12 V battery.
Negative terminal to connection 3JN of the low-speed fan assembly relay mounting.
Clear the fault and run command AC038
If the voltmeter indicates the battery voltage (three 2-second ON-OFF cycles), replace the relay.
If the voltmeter does not show the battery voltage (three 2 second ON-OFF cycles), contact the techline.
If the low speed fan assembly relay operates when command AC038, is run, but there is still a fan assembly
activation fault, use the wiring diagram to check the following:
– the conformity of the fan assembly maxi-fuse.
– the conformity of the low-speed fan unit relay,
– the continuity of connection 49L between components 597 and 321.
– the continuity of connection 49B between components 321 and 262.
– the conformity of the fan assembly and the continuity of connection MAS of component 262.
Carry out the necessary repairs.
EDC16_V18_AC038/EDC16_V1C_AC038/EDC16_V20_AC038

13B-311
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
AC039
HIGH-SPEED FAN ASSEMBLY RELAY
NOTESThere must be no present or stored faults.
Perform this fault finding procedure if a malfunction appears on the command menu
or after an engine cooling system or air conditioning fault.
Refer to the Wiring Diagrams Technical Note for the vehicle to locate the fuses and
relays concerned.
If the high-speed fan assembly relay does not operate when command AC039 is run:
Check the high-speed fan assembly relay mounting and the connections of the engine management computer.
Repair if necessary.
If the fault is still present, check that the relay is actuated by the engine management computer as follows:
Disconnect the high-speed fan assembly relay, fit a 50 Ω < X < 100 Ω resistor on its mounting in place of the
coil, and connect a voltmeter as follows:
Positive terminal to the +12 V battery.
Negative terminal to connection 3JP of the high-speed fan assembly relay mounting.
Clear the fault and run command AC039.
If the voltmeter indicates the battery voltage (three 2-second ON-OFF cycles), replace the relay.
If the voltmeter does not show the battery voltage (three 2 second ON-OFF cycles), contact the techline.
If the high-speed fan assembly relay is supplied by command AC039, but there remains a fault with the
triggering the fan assembly. Check using the wiring diagram:
– the conformity of the fan assembly maxi-fuse.
– + battery feed on connection BP71 of the high-speed fan assembly relay mounting,
– the conformity of the high-speed fan assembly relay,
– the continuity of connection 49B between components 597 and 262,
– the conformity of the fan assembly,
– the continuity of connection MAS of component 262.
Carry out the necessary repairs.
EDC16_V18_AC039/EDC16_V1C_AC039/EDC16_V20_AC039

13B-313
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
AC063
CONTINUED
vdiag 18, 1C, 20:
If the additional heater no. 1 relay does not operate when running command AC063:
Check the additional heater no. 1 relay mounting.
Check the engine management computer connectors.
Repair if necessary.
if the fault is still present, check as follows that this relay is controlled by the engine management computer:
Disconnect the additional heater no. 1 relay, fit a 50 Ω < X < 100 Ω resistor on the relay mounting in place of the
coil, and connect a voltmeter as follows:
Positive terminal to the +12 V battery.
Negative terminal to connection 3JA of component 597.
Clear the fault and actuate the relay using command AC063.
If the voltmeter shows the battery voltage (two, 2-second ON-OFF cycles), replace the additional heater no. 1
relay.
If the voltmeter does not show the battery voltage (two, 2-second ON-OFF cycles), contact the Techline.
If the additional heater no. 1 relay is supplied by command AC063, but there is still a fault with the passenger
compartment heating and demisting, check the following using a wiring diagram:
– the conformity of the thermoplunger maxi-fuse,
–+12V battery on connection 3FB of component 597.
– the conformity of the additional heater no. 1 relay,
– the continuity between connection 3JB of component 597 and connection 3JB of component 898,
– the conformity of the thermoplunger resistance: 0.40 Ω < X < 0.50 Ω at 20°C,
– the presence of earth at the water chamber (thermoplunger mounting).
Also check the level of the cooling circuit and that there are no leaks.
Carry out the necessary repairs.

13B-315
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
AC064
CONTINUED
vdiag 18, 1c, 20:
If the additional heater no. 2 relay does not operate when running command AC064,
check the additional heater no. 2 relay mounting,
check the connectors on the engine management computer.
Repair if necessary.
if the fault is still present, check as follows that this relay is controlled by the engine management computer:
Disconnect the additional heater no. 2 relay, fit a 50 Ω < X < 100 Ω resistor on the mounting in place of the coil,
and connect a voltmeter as follows:
Positive terminal to the +12 V battery.
Negative terminal to connection 3JAA of component 597.
Clear the fault and actuate the relay via command AC064.
If the voltmeter shows the battery voltage (two 2-second ON-OFF cycles), replace the additional heater 1 relay.
If the voltmeter does not show the battery voltage (two 2 second ON-OFF cycles), contact the Techline.
If the additional heater no. 2 relay is supplied by command AC064, but there is still a fault with the passenger
compartment heating and demisting, use the wiring diagram to check the following:
– the conformity of the thermoplunger maxi-fuse,
–+12V battery on connection BP91 of component 597,
– the conformity of the additional heater no. 2 relay,
– the continuity of connection 3JAD between components 597 and 1072.
– the conformity of the thermoplunger resistance: 0.40 Ω < X < 0.50 Ω at 20°C,
– the presence of earth at the water chamber (thermoplunger mounting).
Also check the level of the cooling circuit and that there are no leaks.
Carry out the necessary repairs.