[Steering & Suspension] steering problem

[mickley]

hi all, 2018 berlingo van no power steering, dtc 047 no comms with eps ecu, no power in heavy cable at unit,
where do i start, any help appreciated, thanking you, mick.

[Zander]

Have you checked all your fuses? To make sure they’re not blown. There is another sneaky fuse that can interrupt the power steering which is Fuse 9 I think, for the headlight adjustment. Had a problem on a van and that fuse had blown and caused the power steering fault.

[mickley]

hi Zander, thanks for reply, i did check fuses no 5 on the battery plate and no.6 under bonnet box,
i probably did but will check in the morning, thanks again, mick.

[Sol]

No comms is likely a CAN network fault (white and red twisted pair of wires found all over the vehicle) - check the harness where they leave the electropump assembly over the front drivers side chassis rail ahead of the engine (below the PS fluid cap/reservoir) - could also be the electropump assembly has died, that also can result in no comms. The fuse you pointed out (F6) is the right one.

Also you won't get a proper code using a standard OBD reader, code 047 doesn't exist. You need DiagBox to get the actual fault code. Here is the official list: (sorry for the long post)

Table : Fault codes - Electropump assembly.

C1178  
Internal control unit fault : Non-identified
  
C1201  
DAE motor excess current fault : Non-identified  
 
C1202  
Fault: cooling fan temperature has reached critical : Non-identified  
 
C1203  
Electropump assembly motor jamming fault : Mechanical jamming  
 
C1204  
Steering wheel angle sensor signal S1 fault : Short circuit to positive or short circuit to earth  
 
C1205  
Steering wheel angle sensor signal fault : Short circuit to positive or short circuit to earth  
   
C1206  
Steering wheel angle sensor signal fault : Short circuit between two wires  
 
C1209  
Ignition plus supply fault
: Non-identified  
 
C1211  
Vehicle high speed wake-up fault : Non-identified  
 
C1406  
Electropump assembly overheating fault : Non-identified  
 
C1407  
Vehicle speed information fault : Non-identified  
 
C1408  
Vehicle speed information absent or lost : No signal  
 
C1417  
Steering wheel angle sensor fault : Non-identified  
 
C1554  
Temperature sensor fault : Non-identified  
 
P0561  
System voltage unstable : Non-identified  
 
P0562  
Under-voltage fault : Non-identified  
 
P0563  
Over-voltage fault : Non-identified  
 
P0602  
Download fault : Non-identified  
    
P0603  
Internal control unit fault : Non-identified  
   
P0604  
Internal control unit fault : Non-identified  
 
P0605  
Internal control unit fault : Non-identified  
 
P0606  
Internal control unit fault : Non-identified  
   
U1000  
Fault: electropump ECU mute : Non-identified  
 
U1003  
Communication fault on the CAN network : Non-identified  
 
U1105  
Steering wheel speed of rotation information fault : No signal  
 
U1108  
Internal combustion engine status information fault : No signal  
 
U1113  
Vehicle speed information fault : No signal  

U1205  
Steering wheel speed of rotation information fault : Value received incorrect  
   
U1208  
Internal combustion engine status information fault : Value received incorrect  
   
U1305  
Steering wheel speed of rotation information fault : No signal  
   
U1308  
Internal combustion engine status information fault  
  
Suspect areas - Absence of communication (Electropump assembly):   

CAN network  
Fuses  
Earth  
The electrical harness  
Electropump assembly

[mickley]

hi all again, thanks to Zion for comprehensive list, problem solved turned out to be 80A fuse breaking down, found it using a bulb, then i tried a 40A fuse in case i fried something,blew it when holding against the lock end,all seemed well with a 60 amp,so refitted original size 80A job done,so thank you again , mick.
P.S will keep Zion's list for future reference,

[Sol]

Good stuff. That list only relates to the EHPS system - but I have the codes for other systems when needed.

Glad to hear it's solved for now. Can you indicate which fuse had gone for others who end up with the same issue? Plus it's unusual to blow an 80A fuse without a problem at the other end, so keep an eye out for electropump failure!

[mickley]

Good stuff. That list only relates to the EHPS system - but I have the codes for other systems when needed.

Glad to hear it's solved for now. Can you indicate which fuse had gone for others who end up with the same issue? Plus it's unusual to blow an 80A fuse without a problem at the other end, so keep an eye out for electropump failure!

hi again, the fuse in question no.5 on the battery plate, the fuse has no window and held contact for about 30 seconds which
is why i missed it first time round when i was too busy dreading what i was going to find.
i take on board what you say about diag.tool but i would never get the value out off it, so thanks for now, mick.