It is a 2005 Hybrid Sierra pick up with a 2.3 L and I was driving on the highway and it just cut off
I forgot to mentioned that all lights on dash and other electrical components work, head lights etc..
sorry but I should have said it was a 5.3 L not 2.3L and no the lights went out when I tried to start it
thanks for that information and I was planning on doing it myself .What would I need to do this myself?
yes I have both.
One last question. Does your scanner read the data from the hybrid module?
I have a genisys scan tool 3.0 I'm not sure if it will read data from hybrid module I can give it a try
I will be going out off town for a few days ,will let u know as soon as I get back
I tried the Genisys scan tool on the HYbrid this morning and all it gives me are the codes that I listed for u on the begining of my problem and getting clicking sound from transformer and not cranking....all lights are working when I turn the key but go out when trying to crank
That is going to make it hard to diagnose without being able to read the system data. Lets start somewhere else then. It is quite possible that the vehicle is having an ignition switch problem. I recommend checking to see if the starter relay is clicking when you try starting the vehicle. Let me know if it does and then we can continue with other electrical tests on the switch afterwards.
The starter relay is not clicking when I try starting
Okay. There is a starter/charging control module issue going on here. At this point you need a more advanced set of equipment to go further with this vehicle. If you would like I will opt out of the question to see if another expert can help you with what you have.
ok. thanks for trying
yes, still trying to figure it out
I cleared all the codes and when I tried to start it again all codes came back ..........p0452, P1A13.... P1A16.. P1A10.. P1A13.. P1A16.. P1A32 IN THIS ORDERFail sense clear codes........... P0452....P1A10..P1A16...P1A24..P1A2B...P1A32 and the vin# XXXXX
SLE Ext. Cab Short Bed 4WD
. The PCM is not activating the starter relay when trying to start the engine and I will check the PCM imputs and the ignition switch and will get back to you soon
There is power on the purple wire pin 59 with ignition on
there is 12.5 volts on each wire
I get 12.8 volts
I'm pretty sure but I'll check again
I double checked the voltage on the yellow/black wire leaving PCM and it is 12.8 volts,but I'm confused about when u say starter.........this is an hybrid......no starter
it has a stator on flywheel
where would this starter be located on the truck?
I'm not sure what wiring diagram you have showing you a starter located near the oil pan, because the 2005 Hybrid Sierra I have, as oversize starter motor/stator, allowing the engine to be turned off whenever the car is coasting, braking, or stopped, yet restart quickly . The motor is mounted between the engine and transmission, taking the place of the torque converter.It does have a starter like the type on ordinary gas engine
lol Now we have that clarified ....you say you can ground this wire leaving the PCM..yellow/black that one with 12.8 volts on it?
I grounded the wire and and only thing happens ....there is a noise coming from the transformer...loud clicking or arcing sound. The starting relay you're talking about...thats the one located in the fuse box.If it is there isn't any clicking coming from it
with the key in run position there is only one power on relay...........but I never checked the power on relay with wire grounded.....
I'll check this out in the morning and get back to you
Checked both fuses and OK ...going to check the park neutral position switch and see if power is going to and from...will let u know
I have power going to the park neutral position switch and power leaving