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Andy
Andy, Truck Diagnostic Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 1571
Experience:  International trucks, International, Maxxforce and Cummins engines, diagnostic, electrical, Hvac and refrigeration repairs
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2003 international had ECM rebuilt truck wouldn't start all

Customer Question

2003 international had ECM rebuilt truck wouldn't start all inj. Open to low side bank 1and 2 open put ECM in truck started now it won't start and my laptop won't read anything off it
Submitted: 6 months ago.
Category: Medium and Heavy Trucks
Expert:  Andy replied 6 months ago.

Hi there ! My name is Andy ! Can we start with the last 8 digits of the vin number please ?

Customer: replied 6 months ago.
3h597272
Expert:  Andy replied 6 months ago.

thanks

Expert:  Andy replied 6 months ago.

Here is the procecure to retrieve the current faults in memory :

https://www.dropbox.com/s/f526i7b69ifw887/How%20to%20check%20codes%20three%20digit.txt?dl=0

Expert:  Andy replied 6 months ago.

We need to start there

Customer: replied 6 months ago.
I have tried the left turn cruise on and set button plus hooked a laptop to it nothing
Customer: replied 6 months ago.
The only thing that come up is a unexpected reset
Customer: replied 6 months ago.
It has a new engine wiring harness a new injector harness and still has a 525 code that when looked up on inh. Master code it say pinched wire the valve cover has not been put on yet just the harness for inj there's no way a wire can be pinched the truck wouldn't start sent end to be fixed put it back on truck started then died now won't restart and can not get codes out of it could till it started then stopped now the com won't even d bring up ECM
Expert:  Andy replied 6 months ago.

looking up troubleshooting steps for 525

Expert:  Andy replied 6 months ago.

Will likely be bad wiring from the batteries . Have you checked the inline fuses sitting on top of the batteries in the battery box ?

Customer: replied 6 months ago.
also the connections were the plug in at and hook to batteries
Customer: replied 6 months ago.
Which relay is the ECM relay people talk about
Expert:  Andy replied 6 months ago.

And if you follow the harness up to the starter area , there is another connector there that has been problematic in those years . Have you checked there ?

Customer: replied 6 months ago.
there is two each plug has a ground and a hot running through it
Customer: replied 6 months ago.
I cut them out and went straight
Customer: replied 6 months ago.
Put a new ground wire from battery to engine block
Customer: replied 6 months ago.
Right there just by starter
Expert:  Andy replied 6 months ago.

Ok next place i think is the ecm relay in the power distribution block . Have you tried swapping ecm relays with another circuit to see if it is maybe dirty contacts might be causing the lack of power

Customer: replied 6 months ago.
Customer: replied 6 months ago.
Checked all fuses
Expert:  Andy replied 6 months ago.

And swapped relays ?

Customer: replied 6 months ago.
has all new relays
Customer: replied 6 months ago.
We have been dealing with this for two weeks it has got boss.shut down inh say it will be a couple of weeks before they can get to it
Expert:  Andy replied 6 months ago.

This should be the proper wiring diagram for this engine .

Customer: replied 6 months ago.
Ok I have that in the master inh. Service on computer just thought you might have a faster idea of what is wrong
Expert:  Andy replied 6 months ago.

I would load test the powers and grounds going to the ECM right at the connectors on the ecm using a twin beam headlamp . You would have to jump the relay from 30 to 87 when doing so .

Customer: replied 6 months ago.
Do you know which relay it is
Expert:  Andy replied 6 months ago.

Relay 11

Expert:  Andy replied 6 months ago.

Do you still need help ? Please do not forget to rate my service to you at the end of this session .

Expert:  Andy replied 6 months ago.

If needed , we can continue this over skype and have an audio conversation and I could send more info that way too .

Customer: replied 6 months ago.
It's Ok I just took truck to inh. Do to no one else seems to have any answers

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