Why does my G6 not start when I turn the key?
This just means that the engine doesn’t move when you turn the key. The second way that your G6 won’t start is when the engine turns when you engage the starter, but it won’t fire and run on its own. When the engine isn’t turning over at all, that’s a bit easier to diagnose than when it is cranking but not firing.
Why is the crank on my Pontiac G6 not working?
When the ignition switch is turned to the Start position, the body control module (BCM) receives battery voltage on the ignition 1 voltage circuit, and less than 5 volts on the off/run/crank voltage circuit. The BCM supplies voltage to energize the RUN/CRANK Relay 32.
Where does the GMLAN key go on a Pontiac G6?
The BCM sends a high speed GMLAN serial data message to the engine control module (ECM) that the key is in the start position. The ECM receives the message from the BCM, and also receives a serial data message from the transmission control module (TCM) containing the shift lever position.
Why does my car not start when I turn the key?
A low or bad battery can be easily tested with a standard ohm meter or at any auto repair shop or parts store (they usually do this free of charge). A loose battery cable connection is often the simplest of causes for a non-start. A bad starter solenoid means replacement is needed.
This just means that the engine doesn’t move when you turn the key. The second way that your G6 won’t start is when the engine turns when you engage the starter, but it won’t fire and run on its own. When the engine isn’t turning over at all, that’s a bit easier to diagnose than when it is cranking but not firing.
When the ignition switch is turned to the Start position, the body control module (BCM) receives battery voltage on the ignition 1 voltage circuit, and less than 5 volts on the off/run/crank voltage circuit. The BCM supplies voltage to energize the RUN/CRANK Relay 32.
The BCM sends a high speed GMLAN serial data message to the engine control module (ECM) that the key is in the start position. The ECM receives the message from the BCM, and also receives a serial data message from the transmission control module (TCM) containing the shift lever position.
A low or bad battery can be easily tested with a standard ohm meter or at any auto repair shop or parts store (they usually do this free of charge). A loose battery cable connection is often the simplest of causes for a non-start. A bad starter solenoid means replacement is needed. Similarly, a bad starter is likely going to require replacement.
What causes no start on Pontiac G6 CYL?
A condition has been identified that could cause a NO crank/No communication on the LE5-4 cyl engine. This condition has been identified as a loose ground G105 behind the A/C compressor. Remove the bolt from G105 and clean the engine block surface. You should also make sure the terminal is tight after the bolt is tightened up.
Why does my Pontiac G6 say lost communication?
Borrowed a diagnostic tool from a friend and it showed the following… lost communication with engine control module/powertrain control module “A”. Also want to add that battery shows only 9 volts at terminals + neg. cable is a bit loose connecting to battery. Will a low battery cause this lost communication thing?
Why does my son’s 08 G6 not start?
My son’s 08 G6 will not start or even try to turn over. It shows error on odometer after all needles have swung on the cluster.I searched the forum for solutions and tried some to no avail.
Why does my GM ignition key not turn?
Sometimes the ignition key won’t turn or rotate. If that happens the vehicle won’t start, the steering wheel won’t turn and it won’t shift into gear. On a late 90’s or early 2000 GM vehicle this is the way to get it apart so you can replace the tumbler. Category Autos & Vehicles.
Why does my GM car say no start no crank?
How to diagnose a no start no click on GM vehicle. If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that.
How does the ignition switch work on a GM car?
The ignition switch now talks to the body control module (BCM) and it’s the BCM that initiates one of two relays. The second relay, the more important of the two, is controlled by the powertrain control module (PCM). And it only operates the starter relay after it’s satisfied that the correct key is in the ignition.
What is a typical GM starting system wiring diagram?
Click on the image here to pull up a PDF of a typical GM starting system wiring diagram. Depending on the year, model and engine of your GM vehicle, your starting system may be less complicated or use only some of the components shown here. For example, earlier anti-theft systems didn’t communicate the same way with the PCM.
What to do if your G6 wont start?
Re: I got a 09 pontiac g6 wont start.there is no crank no… You have know idea how the starting system works , an with the engine light on your best bet would be to have it towed to a qualified repair shop .
How does the ECM work on a Pontiac G6?
The ECM receives the message from the BCM, and also receives a serial data message from the transmission control module (TCM) containing the shift lever position. If the shift lever is in Park or Neutral when ignition switch is turned to Start, the ECM supplies voltage to the START Relay 31.
Where is the start relay on a Pontiac G6?
The START relay supplies voltage to the S terminal of the starter solenoid, through the 30 A STRTR Fuse 26, in order to crank the engine. Testimonial: “thanks.”
How does the starter work on a Pontiac G6?
Once the start timer is activated, the PCM/ECM will continue to crank the starter until either the engine starts or a no start time limit is reached. Occasionally, the fuel pump module will take one or two seconds to build fuel pressure. Often this will occur after the vehicle sits overnight.
What should I do if my Pontiac G6 is not turning over?
Most likely not, if your engine is not running, but still cranking then it should be alright. If you are trying to start it for a long time (30+ seconds) and it is still not turning over, then you might want to get it checked out.
How to fix a car that won’t start when you turn the key?
How to fix car that wont crank when you turn the key, no sound or click. How to jump start a car, check the starter, and wire bypass trick. DIY car repair with Scotty Kilmer, an auto mechanic for the last 50 years. Thanks for watching! 1. Bluetooth Scan Tool: http://amzn.to/2nfvmaD 2. Cheap Scan Tool: https://amzn.to/2D8Tvae 3.
What kind of engine does a Pontiac G6 have?
I have a 2008 Pontiac G6 with the 2.4L 4cyl engine. Has anyone else encountered a problem when they start their engine and the motor sounds like no oil is going through it (sounds like very loud lifter tick)?
Can a 2005 Pontiac G6 shift out of Park?
2005 Pontiac G6…Started vehicle after being locked for the day, would not allow to shift out of park, with brake depressed, or at all, unable to even depress the button on the shifter. Security padlock no longer blinks on the panel, lit solid yellow, maybe security engaged.
What to do if your car remote is not working?
Simply insert the key in the ignition and turn it ‘on’ and ‘off’. Exit the vehicle with the fob and retry step #1. If your coolant temperature is near C or your oil is low, you need to be topped up!
Why does my key fob not work on my car?
This video is based on the reasons as to why the key fob or keyless entry doesn’t work completely as in operating the lock, unlock, panic, trunk and door features all together. If only one button doesn’t work or your vehicle doesn’t start, well that can be relating to another issue.
What to do if your remote starter is not working?
Disengage and re-engage ‘P’ before you retry the starting procedure. If you have used the remote starter twice in quick succession, it will not work. Simply insert the key in the ignition and turn it ‘on’ and ‘off’. Exit the vehicle with the fob and retry step #1. If your coolant temperature is near C or your oil is low, you need to be topped up!
Why does my Dodge 3.9L engine not start?
1.) Ignition System The ignition system, on your Dodge 3.9L, 5.2L, or 5.9L is a distributor type system and is the one responsible for creating and delivering spark. Without spark, the engine will crank but not start. The crank sensor, which is located on the transmission bell housing.
Once the start timer is activated, the PCM/ECM will continue to crank the starter until either the engine starts or a no start time limit is reached. Occasionally, the fuel pump module will take one or two seconds to build fuel pressure. Often this will occur after the vehicle sits overnight.
Most likely not, if your engine is not running, but still cranking then it should be alright. If you are trying to start it for a long time (30+ seconds) and it is still not turning over, then you might want to get it checked out.
1.) Ignition System The ignition system, on your Dodge 3.9L, 5.2L, or 5.9L is a distributor type system and is the one responsible for creating and delivering spark. Without spark, the engine will crank but not start. The crank sensor, which is located on the transmission bell housing.
How to diagnose a no start no click on GM vehicle. If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that.