Year of Manufacture *: 2007
Engine Size and Code *: 4HV
( Optional ) Scanner Used: dec super scan
( Optional) Fault Codes: U1701, U0426, U1601, P0405
Got the above vehicle in came in as non start. There was various can bus fault in the systems. Traced to a corroded can bus wire between the bsi and the abs in the wiring harness on the bulk head. Repaired the wiring thinking i'd sorted it i tried to start it but no go. Re-checked for fault codes in the system.
Engine management
U1601 – CAN network (NCM) – Mute
P0405 – EGR - Below Lower Limit
U1701 - Engine Control (NCM) - No signal
U0426 - Injection control unit - Code not received
ABS
U1701 - Engine Control (NCM) - No signal
Body control module
U1701 - Engine Control (NCM) - No node on C-Can
These are all codes which are present and will not clear.
In the body control unit it tells me that the engine control module is not in the can system. I think that the body control unit is at fault but not sure. I would be most greatfull if anybody could give me any advice on the subject.
Kind regards Jamie
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