Morning.

My driver backed my 2009 out of the stall, while idling the engine shut off and the car refused to start.

I wrongly assumed it was the battery and swapped it out. It immediately started.

About two days later we tried to use it and it did not start.

Where should I be looking at?

Thanks.

 

It's probably the fuel pump but scan your system to see if there are any codes.

 

I found out that it keeps blowing the starter 15A fuse in the engine compartment.

 

Thanks. I’ll do that. But will the fuel pump cause the starter to not spin the engine?

 

I suggest you be very specific about the symptoms. The people reading know nothing besides what you write.

We have the following data from you:
1. Stalled while idling
2. Would not re-start (no crank? crank no start?)
3. Changed battery
4. Started
5. No start (no crank? crank no start?)
6. Blows starter solenoid fuse

Do you see how much information is missing?

When was the starter last changed? How many miles are on the current one? When it cranks, does it crank at a healthy speed? What is the battery voltage before attempting to crank?

And, of course, what codes do you read, mostly from the ECU, before and after clearing the codes (and attempting again to start)?

 

Greetings.

I’m curious to know if a bad starter relay can cause a running engine to shut off.

I understand it not energizing the starter to spin the engine.

Thanks.

 

It is often tempting to hunt for a root cause, but this must not be done at the expense of collecting data on symptoms.

A doctor scans your vital signs before doing anything else.

 

I finally was able to get out there and scan the car.

I’ve got a lot of codes but my troubleshooting leads me to an EIS issue.

 

Is it your drivers fault?

Do you have a driver?

Wow.


I think you’re on the right track with the ignition switch. Do you have keyless go or regular?

 

Blowing the starter relay fuse is a twist, though.

 

Not his fault as I was in the car too. Yes I have a driver.

I removed the ignition module and it “looked” okay, no damage but quite different format from all the ones on YouTube.

As you’re helping me out please understand that I’m in Ibadan, Nigeria, Africa

Thank you.

 

We traced a fault to the ECU. NGN450,000 ($300) for a replacement. Truck is back up. My mechanic says we need replacement coils for number 6 & 8.

i think the ECU was burned because they bridged the fuse.

So I’m still not sure on what actually happened and the trust in my truck is shakened

Thanks.

 

Oh boy. Make sure that the starter relay is replaced with the correct part. There is a pin-compatible version that is very different.

It is unlikely that the ECU decided to fail. Much more likely is that the starter relay blew the ECU's semiconductor switch for the starter relay activation coil - i.e. the relay coil shorted out. But then how does this lead to excess current applied to the starter relay? The ECU cannot apply more than 12V; all that should happen is the starter insists on cranking.