How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Neal Your Own Question
Neal, Mechanic
Category: Car
Satisfied Customers: 8351
Experience:  Auto repair pro and Mechanic on multiple makes.
Type Your Car Question Here...
Neal is online now
A new question is answered every 9 seconds

2003 suzuki grand vitara v6 no power to the fuel pump no

This answer was rated:

2003 suzuki grand vitara v6

no power to the fuel pump
no power to the injectors
no spark at the plugs
one of the coil packs has also shorted out
is this a sign of the ECM being messed up?

i have already check the fuses and they are good

I'm Neal and I am here to assist you. Only accept when you are happy with my assistance. If I can't help I will open your Question to other experts.


If the fuses and harness is good and the ecm is getting power then yes, that sounds like the ecm. It is also not that unusual on those.

Customer: replied 5 years ago.

Where is the ECM located and what color is the wire to check if I am getting power to ECM?

Thanks David

Here you go, these are the connector views.



Customer: replied 5 years ago.

If C51-2-20 and C51-2-21, have 10- 14 volts with the key on, would that mean the ECM is bad?

No, they are supposed to have full voltage.
Customer: replied 5 years ago.

I meant to ask if those circuits have full voltage, but I am not getting the pulse at the injectors, the spark at the plugs and no power to the fuel pump, would that mean the ECM is bad?

If the ECM is bad, can I just buy new ECM and install it or does it have to go to the dealer for programming?



Based on what you have told me. it does sound like the ecm. That one does not require reprogramming.
Neal and 4 other Car Specialists are ready to help you
Customer: replied 5 years ago.

Thanks for your help. Going to find ECM.

You're welcome!!