Power steering ECU no communication with lexia

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My Name: 00James00

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Hi, as you guys are probably aware I'm now moving onto the next fault I'm experiencing with my c3.
When scanning all ECU's through global test in lexia under the power steering ecu dialogue it states NO, when out
Driving power steering is working so thinking maybe a fuse or wiring problem? Where about is the power steering ecu located. Tried to do a search in the forum but search bar is not working. I have attached a screen shot of lexia showing my fault
image.jpeg
My Name: 00James00

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Correct photo
image.jpeg
My Name: Missing Lincs

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Does the power steering work?

If it does I would just stick tape over the bottom of your screen and forget what lexia is telling you.
If at first you don't succeed, destroy all the evidence and pretend you never tried :lol:
My Name: 00James00

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Model: C3 2002-2005, Original shape model
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Yeah well when we drove it back after purchasing it it was fine. I'd rather see if it's something simple or is this a common thing for you to give that answer haha
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My Name: C3driver52

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00James00 wrote:Where about is the power steering ecu located.
Its behind the battery
Citroen C3 Power Steering ECU (ePAS ECU) location in the battery tray
Citroen C3 Power Steering ECU (ePAS ECU) location in the battery tray
Missing Lincs wrote:If it does I would just stick tape over the bottom of your screen and forget what lexia is telling you.
Hahaha :lol: :lol:
00James00 wrote:Yeah well when we drove it back after purchasing it it was fine. I'd rather see if it's something simple or is this a common thing for you to give that answer haha
Its not a common fault :(

And unusual. Did you manage to update the BSI software that was mentioned in another topic?
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Image
Not ABS fault detected - good news.

BSI fault? Start there and see what the fault code is :)
My Name: 00James00

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Model: C3 2002-2005, Original shape model
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Trim Level: Touch
Gearbox: Manual 5 speed
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LHD or RHD: RHD (UK)

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Have not updated BSI as of yet, the BSI fault is only the exterior temperature sensor.

I'll check the wiring that's going to the steering wheel ecu thanks for its location.

Is there one fuse that controls this ecu?
My Name: 00James00

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Model: C3 2002-2005, Original shape model
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Engine Size: 1.4
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Trim Level: Touch
Gearbox: Manual 5 speed
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P.s the power steering ecu is present in the BSI configuration.
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My Name: Arfur Dent

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00James00 wrote:Is there one fuse that controls this ecu?
The fuses are listed here but you will also find the maxi fuses supply the EPS.
If it does I would just stick tape over the bottom of your screen and forget what lexia is telling you.
If the EPS ECU fuse is blown then no part of the car will communicate with it and you won't have power steering working.

You may end up changing the Power steering ECU (from ebay) if only to prove that the EPS ECU is ok and its not a BSI problem. The C3 EPS ECU is just like your AIRBAG ecu change.
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My Name: 00James00

C3 Master
Posts: 169
Joined: Sat Mar 12, 2016 10:15 pm
Model: C3 2002-2005, Original shape model
Year: 2004 (54)
Engine Size: 1.4
Fuel Type: Petrol
Mileage: 88000
Trim Level: Touch
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)

Post

Ok will look into this thank you.
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