OK, this is not a big issue, but why does my start buttom make a few quick clicks before starting or stopping my 08Z? What is it doing? Morse code to the starter motor??
Pressing the Start switch sends a discrete input to the body control module (BCM) notifying it that engine start has been requested. The BCM then verifies that the key fob, with the correct code, is in the vehicle.
After this information has been verified the BCM grounds the control side of the RUN/CRANK relay closing the switch side of it and allowing battery positive voltage to flow from the BATT 3 fuse through the RUN/CRANK Relay switch, engine control module (ECM) Fuse to the battery positive voltage side of the Crank relay coil. The BCM also sends a high speed GMLAN message to the ECM requesting engine start.
The ECM will then verify that the internal mode switch (IMS) is in Park, Neutral, or clutch depressed. After this has been verified the ECM grounds the control circuit of the CRANK Relay closing the CRANK Relay Switch Circuit and allowing battery positive voltage to flow through the STARTER Fuse, the CRANK Relay switch to the S-terminal of the starter solenoid cranking the engine. Ground is supplied through the engine block.
i agree but dosent the clicks sound like where in the 70`s ?
i used to have an 2007 M5 and no clicking when i press start
to be honest the clicking sounds feels that the relays are CHEEEEP and givs me the feeling its going to catch fire
i agree but doesn't the clicks sound like where in the 70`s ?
i used to have an 2007 M5 and no clicking when i press start
to be honest the clicking sounds feels that the relays are CHEEEEP and gives me the feeling its going to catch fire
Question for you?
Are you holding the button in? If so try just touching it once to start the car. It's not necessary to hold the button in.
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Never argue with an idiot. They drag you down to their level then beat you with experience.
Are you holding the button in? If so try just touching it once to start the car. It's not necessary to hold the button in.
ok heres what i do to start it foot on clutch all the way and touch** the start key then i hear click click click VROOOOM (ON)
to switch off press and hold the (0-acc) botton then i hear click click click boooosh (OFF)
I was told by the NCM guy to hold the button in until it starts or stops, sos I did...
You need to send an Email to the NCM Guy and tell him to read the owners manual page 2-24
Quote:
From the 2008 owners manual
2. When the engine begins cranking, let go of the
button and the engine cranks automatically until
it starts. If the battery in the Key-less access
transmitter is weak, the DIC displays FOB
BATTERY LOW. You can still drive the vehicle.
See “Battery Replacement” under Key-less Access
System Operation on page 2-5 for more information.
If the fob battery is dead, you need to insert the
fob into the fob slot to enable engine starting. See
“No Fobs Detected” under DIC Warnings and
Messages on page 3-55.
You need to send an Email to the NCM Guy and tell him to read the owners manual page 2-24
I think he was saying "until it starts to crank" which is exactly what I do and the manual says...I tried your way and it works too. Makes no difference in the relay noise as expected. thanks.
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unless your following me!!!!
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