Posted by Jamie Lambert on November 24, 2011, 8:05 pm
Year of Manufacture *: 2007 Engine Size and Code *: 4HV ( Optional ) Scanner Used: dec super scan ( Optional) Fault Codes: U1701, U0426, U1601, P0405
Hi all 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.