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SPRINTER W906 CRD3.20 ECU PROBLEM !
07-12-2018, 05:45 AM
Post: #1
SPRINTER W906 CRD3.20 ECU PROBLEM !
Hello members i have problem with sprinter 906 2.2cdi 120kw . 651 engine .
The car does not start and i get a lot of fault codes on the ecu. In the attachment is the photo of the fault codes . I checked all the fuses and the relays are OK .
On the sensors i do NOT get 5V from the ecu . Can the ecu be a problem ?
Thank you .


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07-12-2018, 05:56 AM
Post: #2
RE: SPRINTER W906 CRD3.20 ECU PROBLEM !
1. Try to disconnect all sensors connected to 5V bus, 1 by 1.
2. Check wiring short to ground with ECU connectors disconnected.
3. Check power and ground to ECU.
Only after all those steps performed you can say your ECU is the cause.
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07-12-2018, 05:57 AM
Post: #3
RE: SPRINTER W906 CRD3.20 ECU PROBLEM !
did you check wire in ecu

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07-12-2018, 06:32 AM (This post was last modified: 07-12-2018 06:39 AM by service.feratre.)
Post: #4
RE: SPRINTER W906 CRD3.20 ECU PROBLEM !
i disconected the big connector from the ecu and i measured direct pins from ecu for 5 v output from mas air flow sensor direct to ecu pins and i dont get 5V

(07-12-2018 05:56 AM)serg215 Wrote:  1. Try to disconnect all sensors connected to 5V bus, 1 by 1.
2. Check wiring short to ground with ECU connectors disconnected.
3. Check power and ground to ECU.
Only after all those steps performed you can say your ECU is the cause.

i disconected 1by 1 all sensors and still dont get 5 v from ecu. i messured direct from ecu pins for mas air flow sensor i dont get 5 v output from ecu
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07-12-2018, 09:04 AM
Post: #5
RE: SPRINTER W906 CRD3.20 ECU PROBLEM !
check all fuse sam
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