Re: 9510 error code e72

Re: 9510 error code e72

Locate the circuit breaker that power the e.c.u, rear wall of engine compartment, replace breaker, have had a few of these the last couple years , hope this will help , deerefever.

Re: 9510 error code e72

check the mounting bracket that holds the ecu or the breakers in the engine comp.it is bolted to the floor and uses that for a ground.had same problem on 9600,but its been few years,and i can't remember for sure which one

Re: 9510 error code e72

start signal wire circuit code #107 Tee's in at engine starter relay then goes through Connector C701 and then directly into ECU---------so if engine cranks then wire is good to starter relay----i would check C701 as that is a problem area and i have replaced many corroded pins here---and this is a 16-pin connector located under hydaulic reservoir-----make sure there is no voltage drop across engine compartment relays while there under load as i have seen these cause intermittent problems

Re: 9510 error code e72

did more research on error code E72 and this is not a start signal error[ E41 is]-but e72 means diagnostic codes output signal is stuck low which means there is a problem with communication between ecu and tach on wire cc132 through rh harness