Ducato code P0201.0202,0203,0204

[Romanky]

Fiat Ducato 2.0JTD 0 281 012 597 help Hi,
error P0201,P0202,P0203,P0204.

injectors are connected and bond wire is OK to Ecu. no other fault diagnosis does not show, the car does not start, immo code OK! The Bosch Ecu would KO ?

[Meat-Head]

hi there, do these codes relate to the injectors by any chance?

if so beleive there was a thread about it, with the solution to the problem

can't remember who by or the name of thread.

HTH

Meat.

[Romanky]

hi there, do these codes relate to the injectors by any chance?

YES !



can't remember who by or the name of thread. YES


Nowhere I found it in Forum

[ngt84]

Does the fuel pump works ? Checked fuel supply ?

[dopsleutel13]

Check the fuses F02,F18,F21,F17,F11,F22,F20 in B001 (under the hood)
As you can see in the diagram, the power of the injectors comes from the ece.


http://img577.imageshack.us/img577/8303/ducato20jtd.jpg

[RedNix]

look


What does this mean?

OBD Code P0201refers to
P0201 means that the PCM detected a fault in the injector or the wiring to the injector. It monitors the injector and when the injector is activated, the PCM expects to see the voltage pulled "low" or close to zero. When the injector is switched off, the PCM expects to see a voltage that is close to battery voltage or "high". If it doesn't see the expected voltage the PCM will set this code. The PCM also monitors resitance in the circuit. If the resistance is excessively low or high it will set this code.
Symptoms

Possible sumptoms of OBD code P0201
The symptoms for this code will likely be a misfire and a rough running engine. Poor acceleration. The MIL will also be illuminated.
Causes

Possible causes of OBD code P0201
The causes could be any of the following: Bad injector. This is usually the cause of this code but doesn't rule out the possibility of one of the other causes Open in the wiring to the injector Short in the wiring to the injector Bad PCM
Possible Solutions

First, using a DVOM check the resistance of the injector. If it isn't within specs, then replace the injector. Check for voltage at the fuel injector connector. It should have 10 volts or more. Visually check the connector for damage or broken wires. Visually check the injector for damage. If you have access to an injector tester, activate the injector and see if it operates. If the injector operates, then you likely have either an open in the wiring, or a blocked injector. If you do not have access to a tester, swap the injector with another one and see if the code changes. If the code changes, then change the injector. At the PCM, remove the driver wire from the PCM connector and Ground the wire. (Make sure you have the correct wire. If you're not sure, do not attempt) The injector should activate Replace the injector First, using a DVOM check the resistance of the injector. If it isn't within specs, then replace the injector. Check for voltage at the fuel injector connector. It should have 10 volts or more. Visually check the connector for damage or broken wires. Visually check the injector for damage. If you have access to an injector tester, activate the injector and see if it operates. If the injector operates, then you likely have either an open in the wiring, or a blocked injector. If you do not have access to a tester, swap the injector with another one and see if the code changes. If the code changes, then change the injector. At the PCM, remove the driver wire from the PCM connector and Ground the wire. (Make sure you have the correct wire. If you're not sure, do not attempt) The injector should activate Replace the injector

[Romanky]

Thank you all for your answers. Most diagram helped me!
All I will carefully control.

I'll know what I later discovered a defect.

Fiat Ducato 2.0 JTD 2005, where eLearn please download or DTE diagram for this car, what you sent me diagrams in the forum!

Many thanks for the info.

[Romanky]

All fuses and relays control T09 OK ! After replacing the old Ecu + vyrgin car jumped and goes OK !

[Meat-Head]

don't susspose somebody put jumpleads on the ecu case - fried the drivers!

[Romanky]

The unit I tried to load software and it bore, injectors are not coded here! Indeed, there is a defect in the ECU and I went through the diodes
fuse in the ECU and protection resistors and I have not found anything, 6x MOSFET, too OK! Replacing the ECU repair faster :giveup:!