push button start don't work
Thread Starter
Racer
Joined: Nov 2012
Posts: 411
Likes: 162
From: missouri valley ia
push button start don't work
2005 base coupe, it will not crank when the button is pushed, however, if I get out and put a jumper wire in the crank trigger relay it will crank and start right up and runs great. Anyone have this issue before?
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,629
Need more information, hence if you are getting any warnings in the DCI.
The low down, is when you press the start button, BCM checks to make sure that RCDLR is picking up the fob in the car via 2 of the antennas, check to make sure that auto trans in park and you have your foot on the brake/manual trans has you pushing the clutch pedal all the way down, and once these are meet, will send the run comand to the ecm and use the run/crank relay on the bottom of the BCM to crank the starter for either 5 seconds or until the motor starts.
So on that note, put a tech II on the car, to make sure that the BCM is first getting the starter button signal, the needed other conditions have been meet for the trans type, and that its sending the crank signal (all of these can be check in BCM data), and the crank/run relay on the bottom of the BCM is fine
If getting no fob found in DIC, then RCDLR is not picking up the Fob via two antena's to prove that its in the car cabin (only one antenna has to pick up the fob for you to get into the car.
The fact that you can jump the starter relay to start it, means that the BCM is sending the run signal to the ecm, so its the other conditions and the run crank Relay that you may want to check on the bottom of the BCM (have to remove the BCM from the car to get to the bottom of it for that relay).
The low down, is when you press the start button, BCM checks to make sure that RCDLR is picking up the fob in the car via 2 of the antennas, check to make sure that auto trans in park and you have your foot on the brake/manual trans has you pushing the clutch pedal all the way down, and once these are meet, will send the run comand to the ecm and use the run/crank relay on the bottom of the BCM to crank the starter for either 5 seconds or until the motor starts.
So on that note, put a tech II on the car, to make sure that the BCM is first getting the starter button signal, the needed other conditions have been meet for the trans type, and that its sending the crank signal (all of these can be check in BCM data), and the crank/run relay on the bottom of the BCM is fine
If getting no fob found in DIC, then RCDLR is not picking up the Fob via two antena's to prove that its in the car cabin (only one antenna has to pick up the fob for you to get into the car.
The fact that you can jump the starter relay to start it, means that the BCM is sending the run signal to the ecm, so its the other conditions and the run crank Relay that you may want to check on the bottom of the BCM (have to remove the BCM from the car to get to the bottom of it for that relay).
Thread Starter
Racer
Joined: Nov 2012
Posts: 411
Likes: 162
From: missouri valley ia
Need more information, hence if you are getting any warnings in the DCI.
The low down, is when you press the start button, BCM checks to make sure that RCDLR is picking up the fob in the car via 2 of the antennas, check to make sure that auto trans in park and you have your foot on the brake/manual trans has you pushing the clutch pedal all the way down, and once these are meet, will send the run comand to the ecm and use the run/crank relay on the bottom of the BCM to crank the starter for either 5 seconds or until the motor starts.
So on that note, put a tech II on the car, to make sure that the BCM is first getting the starter button signal, the needed other conditions have been meet for the trans type, and that its sending the crank signal (all of these can be check in BCM data), and the crank/run relay on the bottom of the BCM is fine
If getting no fob found in DIC, then RCDLR is not picking up the Fob via two antena's to prove that its in the car cabin (only one antenna has to pick up the fob for you to get into the car.
The fact that you can jump the starter relay to start it, means that the BCM is sending the run signal to the ecm, so its the other conditions and the run crank Relay that you may want to check on the bottom of the BCM (have to remove the BCM from the car to get to the bottom of it for that relay).
The low down, is when you press the start button, BCM checks to make sure that RCDLR is picking up the fob in the car via 2 of the antennas, check to make sure that auto trans in park and you have your foot on the brake/manual trans has you pushing the clutch pedal all the way down, and once these are meet, will send the run comand to the ecm and use the run/crank relay on the bottom of the BCM to crank the starter for either 5 seconds or until the motor starts.
So on that note, put a tech II on the car, to make sure that the BCM is first getting the starter button signal, the needed other conditions have been meet for the trans type, and that its sending the crank signal (all of these can be check in BCM data), and the crank/run relay on the bottom of the BCM is fine
If getting no fob found in DIC, then RCDLR is not picking up the Fob via two antena's to prove that its in the car cabin (only one antenna has to pick up the fob for you to get into the car.
The fact that you can jump the starter relay to start it, means that the BCM is sending the run signal to the ecm, so its the other conditions and the run crank Relay that you may want to check on the bottom of the BCM (have to remove the BCM from the car to get to the bottom of it for that relay).
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,540
Likes: 4,020
From: Cape Coral, Florida
If the battery is 5 years old I'd take it down to your favorite parts store and have it load tested as a weak battery may be your problem...if you then can get it started you can do a voltage drop check on your battery cables...one lead of voltmeter on battery positive and the other lead to the battery cable stud at the starter...same test on the ground side between battery negative and the battery negative block ground...anything over .5 volts is no good with the engine cranking.
