RENAULT CLIO 4 DONT START 1.5 DCI

**GERCOMOTIVE** · 28th May, 2019, 01:04 PM

IMG_0616.JPGHello friends, I have a renault clio 4 1.5 dci year 2014.

The car does not start from the button, I can only start it if I start the starter motor.

Checking wiring everything ok, I need a negative in the restart relay.

This negative comes from the ecu, but I suspect that the fault is in the car not in the ecu.

I attach photo with dtcs.

Any ideas ?

Thank you very much in advance

**stabiel** · 28th May, 2019, 01:40 PM

clutch pedal status
It has two switches and a sensor, you checked them?
send report from BCM

**GERCOMOTIVE** · 28th May, 2019, 02:50 PM

It does not register any fault code with respect to that, I have looked at the diagnosis in parameters and it seems that it registers correctly when you press the pedal,

I did not check anything I did not know that I had 2 sensors, I will review it and communicate the result.

Thank you very much for the contribution

**GERCOMOTIVE** · 28th May, 2019, 04:04 PM

the switches seem to be ok, what sensor did you refer to? I've searched for it but I only find the 2 switches.

Where is the sensor located?

**CarDiagAMG** · 28th May, 2019, 04:44 PM

Rail presure check

**stabiel** · 29th May, 2019, 12:38 PM

Originally Posted by EDAGYAM

the switches seem to be ok, what sensor did you refer to? I've searched for it but I only find the 2 switches.

Where is the sensor located?

I was supposed to come here, but looking at the manuals, it does not come in the clio 4

Are you sure the starting relay is ok? I mean the mini relay.
it happened to me in a case that the mini relay was damaged and no longer received a signal because of that (without apparent codes)

**GERCOMOTIVE** · 29th May, 2019, 01:10 PM

I have everything checked, sensors and the relay is ok, I think the problem may be that the rail pressure sensor has some fault and I do not authorize the start for that reason.

The pressure measured with the car on is correct, but I do not have many more to try,

so I will try my luck with the rail pressure sensor and I will comment on the result.

Thank you very much for the help

**simaservis1108** · 29th May, 2019, 05:54 PM

DF1356 is the problem why it wont engage starter.

**stabiel** · 29th May, 2019, 09:22 PM

I do not think the rail sensor plays a role in the authorization or not of the start relay.
I await your new report

**gonzaaa** · 5th October, 2019, 10:01 PM

Did you solved? I have the same problem

Poslato sa HUAWEI LYO-L01 pomoću Tapatoka

**flixuno** · 13th October, 2019, 06:24 PM

1º check rail pressure
2º Many times 70% have happened to me, it is welding of motor unit (ecu)

**Louislesinge** · 13th October, 2019, 07:55 PM

[QUOTE=EDAGYA

The car does not start from the button, I can only start it if I start the starter motor.

Hi,
Be careful there are two relays for solenoid starter.
One is the 657 with ECU command ( could be stop & start function)
Second is 232 with command from 645. Both works in parallel way.
The first start comes from 645 (UCH), so find 232 relay and check négative command .
Other good idea is to check high fuel pressure sensor as adviced by CardiagAMG because this error can lock starter by CAN: remove connector and have a look on the three pins, you must find ground, 5V and another 5V when sensor is disconnected.
If you find strange voltage on this connector, like 12V, open the part of electric beam that comes over the starter, as many times wires are mounted so tight near the big red battery supply on the starter motor, that they become on short-circuit at the back of the big pod.
Greetings,