C5 X7 Wiring Diagram

[mobitronic]

Hallo leute, hat jemand zugang zu den schaltplänen vom motorkabelbaum? habe mehrere fehler im MSG und BSI und der wagen springt nicht an.

zb.05FF, P0103,P0336,P0342,P0727

Es ist ein C5 2.0HDI von 2009

Gruß martin

[myglaren]

Please post in English as the majority of our members don't speak German.
Use Google Translate or DeepL.

[mobitronic]

Hi guys, does anyone have access to the wiring diagrams for the engine wiring harness? I have several errors in the MSG and BSI and the car won't start. e.g.05FF, P0103,P0336,P0342,P0727

It's a C5 2.0HDI

from 2009

Greetings Martin

[GiveMeABreak]

We require a VIN for diagrams. Please post your VIN in full without spaces - it will be automatically masked from public view after submitting your post & will only be visible to staff.

[mobitronic]

VF7**************[VIN obfuscated, can be read by forum staff]

[GiveMeABreak]

Here is the injection diagram.

The main hardware (not wiring) codes are indexed here:

PSA Electrical Diagrams - Wiring & Symbols Codes Index

[GiveMeABreak]

You have 2 parts that will cause issues: Your flowmeter looks to be faulty - so I would get that cleaned or replaced as this will affect other aspects of engine management, as the engine ECU will use default values in the absence of any actual data from the flowmeter.

The other 2 codes relate to the engine speed sensor, so I would get that replaced first, see what faults remain and then deal with the Airflow Meter (MAF).

Fault Code:	P0103
Description of Fault:	Flowmeter signal: Signal period less than a minimum threshold. The flowmeter signal period is less than 60 µs for 400 milliseconds, which indicates that the flow measured is the maximum.
Conditions for Fault to clear:	Ignition on
Downgrade Modes whilst Fault is active:	Deactivation speed limiter until the next time the ignition is switched on Deactivation cruise control until the next time the ignition is switched on Deactivation of the particle filter regeneration forced by the diagnostic tool The ECU stops the regulation of the EGR valve Switching on of the warning lamp and/or warning message: Warning lamp MIL
Symptoms:	Smoke from the exhaust Lack of power
Suspect Areas:	Air flow meter Electrical harness Connector Engine ECU

This may be a faulty Crankshaft Speed Sensor - again this will cause issues if faulty.

Fault Code:	P0336
Description of Fault:	Engine speed signal: Absence of signal under starter. Absence of signal from the engine speed sensor on starting.
Conditions for Fault to clear:	Under starter
Downgrade Modes whilst Fault is active:	-
Symptoms:	Starting problem
Suspect Areas:	Engine speed sensor Engine speed sensor target Electrical harness Connections

Fault Code:	P0342
Description of Fault:	Camshaft signal: Signal absent. Loss of the camshaft signal for 2 to 3 engine revs.
Conditions for Fault to clear:	Under starter
Downgrade Modes whilst Fault is active:	-
Symptoms:	Starting problem
Suspect Areas:	Camshaft sensor Target of the camshaft sensor Timing Electrical harness Connector

[Vule]

Hello all, I have a Citroen C5 2008 2.0 HDi 100KW Vin VF7**************[VIN obfuscated, can be read by forum staff]. I would need wire diagrams for my engine, from the BSM to the engine.
I don't know if I understood my service guys it is a problem that there is no power to the steering motor block...not sure about the translation.
I have a problem for a long time, and the car is in the service for two months now
it all started with a problem in cold weather that the car would not start. I had to crank the engine for a long period of time to get it started. It started only in cold weather below 0 and around 0 temperature.
Suddenly one day just would not start but it was not cold and it went in safe mode. When i turn the key in the ignition the tachometer goes up, the lights on the instrument panel come on, after that the rev counter goes down and the lights go out. The car won't start it can't crank
it is not the alternator; it is not the brake switch. I had a noise on the BSM, and I bought a new one, but the cracking did not stop, and the problem is the same. I want to help the service guys and try to find the wire diagrams so that they can try to find the problem as it is not in an official Citroen service. Is it possible to get some info?
Thanks in advance

[PaulC5]

Before spending any money check the battery voltage, if fully charged it should be about 12.7 volts but if below about 12.5 volts it needs charging.

[xantia_v6]

Is this a 2008 car? Automatic or manual transmission? Hydraulic or steel suspension? ESP?

Temperature-dependent faults like this are often caused by faulty soldered joints on a printed wiring board such as a fusebox, ECU or instrument panel.

I will see if I can find some suitable diagrams. The trick to troubleshooting is to find the simplest circuit that is affected by the fault, preferably a circuit that is not controlled by an ECU.

Can you list all the items that stop working, so that I can identify the most useful diagrams.

[Vule]

Before spending any money check the battery voltage, if fully charged it should be about 12.7 volts but if below about 12.5 volts it needs charging.

Good morning, I changed the battery. The old one was in good condition, but I tried also that after cranking for a long period...

[Vule]

Here is the injection diagram.

The main hardware (not wiring) codes are indexed here:

PSA Electrical Diagrams - Wiring & Symbols Codes Index

Good morning, thank you I will send this to the service. I

[Vule]

You have 2 parts that will cause issues: Your flowmeter looks to be faulty - so I would get that cleaned or replaced as this will affect other aspects of engine management, as the engine ECU will use default values in the absence of any actual data from the flowmeter.

The other 2 codes relate to the engine speed sensor, so I would get that replaced first, see what faults remain and then deal with the Airflow Meter (MAF).

Fault Code:	P0103
Description of Fault:	Flowmeter signal: Signal period less than a minimum threshold. The flowmeter signal period is less than 60 µs for 400 milliseconds, which indicates that the flow measured is the maximum.
Conditions for Fault to clear:	Ignition on
Downgrade Modes whilst Fault is active:	Deactivation speed limiter until the next time the ignition is switched on Deactivation cruise control until the next time the ignition is switched on Deactivation of the particle filter regeneration forced by the diagnostic tool The ECU stops the regulation of the EGR valve Switching on of the warning lamp and/or warning message: Warning lamp MIL
Symptoms:	Smoke from the exhaust Lack of power
Suspect Areas:	Air flow meter Electrical harness Connector Engine ECU

This may be a faulty Crankshaft Speed Sensor - again this will cause issues if faulty.

Fault Code:	P0336
Description of Fault:	Engine speed signal: Absence of signal under starter. Absence of signal from the engine speed sensor on starting.
Conditions for Fault to clear:	Under starter
Downgrade Modes whilst Fault is active:	-
Symptoms:	Starting problem
Suspect Areas:	Engine speed sensor Engine speed sensor target Electrical harness Connections

Fault Code:	P0342
Description of Fault:	Camshaft signal: Signal absent. Loss of the camshaft signal for 2 to 3 engine revs.
Conditions for Fault to clear:	Under starter
Downgrade Modes whilst Fault is active:	-
Symptoms:	Starting problem
Suspect Areas:	Camshaft sensor Target of the camshaft sensor Timing Electrical harness Connector

Thank you, I will send the info to the service. I am not qualified for this, and I don't have the equipment

[Vule]

Is this a 2008 car? Automatic or manual transmission? Hydraulic or steel suspension? ESP?

Temperature-dependent faults like this are often caused by faulty soldered joints on a printed wiring board such as a fusebox, ECU or instrument panel.

I will see if I can find some suitable diagrams. The trick to troubleshooting is to find the simplest circuit that is affected by the fault, preferably a circuit that is not controlled by an ECU.

Can you list all the items that stop working, so that I can identify the most useful diagrams.

Good morning
It is a 2008 car, 2.0 100 KW engine, automatic with hydraulic suspension. It has ESP
It is hard for me to describe what is not working but I will try. I will also add two videos. I went in the north part of my country where is cold, in the mountains this winter, where I had a hard time to start the car. I took a few hours to start it. I changed the battery, since I cranked the car a lot and I bought a start spray to help me start the engine. After I started the engine, I went home, I live in the south where is warmer. The car worked well, I used it a whole day and I remember that I parked it on a Sunday evening and after that the car is in a safe mode. I turn the key and the light go on and then just all goes off. When I leave the key in the ignition, I hear a sound in the BSM, it is like it have a problem to connect to something ( click, click, click ... ) the fan from time to time starts and then goes off. I tried to disconnect it, but it did not change anything.
Is it possible to upload videos? I have two recordings that I took and can show the situation on the car

[Paul-R]

Is it possible to upload videos? I have two recordings that I took and can show the situation on the car

Not directly. Post your video on YouTube and then post a link to that video here. Make sure the video is set to be visible to everyone on YouTube.