2010 GMC Sierra 1500 Logo

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Richard Wilson Posted on May 17, 2019
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2010 gmc 1500 padlock on dash turn key on for 10 min then turn off for 2 min still will not start disconnect battery then hook back horn activate use key to turn it off

No line under P R D D M just won't turn over can it be the silinoted

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Jeff Armer

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  • GMC Master 3,418 Answers
  • Posted on May 25, 2019
Jeff Armer
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Can it be the silinoted ???? Solenoid is the correct spelling . Your best bet , have it towed to a qualified repair shop . This is a computer problem , not the solenoid . The padlock light lit , anti-theft system problem , more then likely . Guessing is not the way to fix this . Hooking up a factory or some other professional type scan tool an checking code's in the anti-theft module an the ECM - engine control module . Your 10 min. key off an wait 2 min won't work on your vehicle . You need a factory scan tool to do a reset
10-Minute Immobilizer Relearn
This 10-minute relearn procedure will relearn the prerelease password and the challenge/response data between the theft deterrent module (TDM) and the engine control module (ECM).
Connect a scan tool to the vehicle in the pass-thru arrangement.
Turn ON the ignition, with the engine OFF.
Ensure that all power consuming devices are turned OFF on the vehicle.
On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions, using the Pass-Thru method. Ensure the correct programming selection is chosen based on component being replaced or programmed. For this procedure, go to the V.T.D. Vehicle Theft Deterrent Learn menu and choose the Vehicle Theft Deterrent Learn, ECM, or PK3 Replaced selection.
At this point the scan tool must remain connected for the duration of the 10-minute relearn procedure.
Important:
• The scan tool will initially display 12 Minutes. The first 2 minutes allow the scan tool to initialize the appropriate control module. The remaining 10 minutes is the relearn timer.
• On some vehicles the security indicator may be illuminated for the duration of the 10-minute relearn procedure.
Observe the scan tool, after approximately 10 minutes the scan tool will display "Programming Successful, Turn OFF Ignition". The vehicle is now ready to relearn the key information and/or the passwords on the next ignition switch transition from OFF to CRANK.
Turn OFF the ignition and wait 2 minutes.
With a master vehicle key, turn the ignition to the RUN position for 15 seconds, then start the vehicle. The TDM and ECM have now relearned the pre-release password and the challenge/response data.
With a scan tool, clear any DTCs.



Circuit Description (Key Start)
When the ignition switch is placed in the Start position, a discrete 12-volt signal is supplied to the body control module (BCM) notifying it that the ignition is in the Start position. The BCM then sends a message to the engine control module (ECM) notifying it that CRANK has been requested. The ECM verifies that the transmission is in Park or Neutral. If it is, the ECM then supplies 12 volts to the control circuit of the crank relay. When this occurs, battery positive voltage is supplied through the switch side of the crank relay to the S terminal of the starter solenoid.

The easiest way to check to see if this is all correct ,is by hooking up a scan tool an viewing data parameters .
The immobilizer system functions are provided by the theft deterrent module (TDM) and the engine control module (ECM). When an ignition key is inserted into the ignition lock cylinder and the ignition is switched ON, the transponder embedded in the head of the key is energized by the exciter coil surrounding the ignition lock cylinder. This exciter coil is part of the TDM. The energized transponder transmits a signal that contains its unique value, which is received by the TDM. The TDM then compares this value to a value stored in memory. If the values match, the TDM will send the prerelease password via the serial data circuit to the ECM. If the transponders unique value is incorrect, the TDM will send the fuel disable password to the ECM.
When the ECM receives the TDM prerelease password, the ECM will challenge the password. The ECM sends this challenge back to the TDM via the serial data circuit. Both the ECM and TDM perform a calculation on this challenge. If the calculated response from the TDM equals the calculation performed by the ECM, the ECM will allow vehicle starting.
The components of the theft system are as follows:
• TDM
• ECM
• Ignition key (Transponder)
• Security indicator

Your best bet , i say again , is have a professional technician sort it out . Or you'll waste your money buying parts your don't need .

5 Related Answers

countrysi248

Jerry Koski

  • 443 Answers
  • Posted on Jan 25, 2009

SOURCE: flashing security light in dash

pontiacs have a security key do you have another key you can try to make sure this is not the problem ?

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Anonymous

  • 353 Answers
  • Posted on Jul 05, 2009

SOURCE: i have a 1999 Gmc Jimmy and i think that i have

cycle key on/off 4 times, but don't start

kirtec auto

  • 1348 Answers
  • Posted on Jul 22, 2009

SOURCE: Engine won't start. Dash lights flash rapidly when key turned.

the battery says 12 volts but may be dropping to 4 or 5 under a load...i would suggest jumpstarting the car and see what happens.the battery should read in the high 12 volts and not less than 9.5 under cranking. the dash lights go out on your car when starting,and the alarm will go off ,and disable the ignition if the voltage is too low in cranking the car because the computer will shut it down and activate the anti theft.....check your battery posts are tight. best of luck

Anonymous

  • 2 Answers
  • Posted on Oct 31, 2009

SOURCE: car wouldn't start. jump started let run 10 min

get a better ******* car, daewoos **** ***

Anonymous

  • 212 Answers
  • Posted on Feb 02, 2010

SOURCE: 1999 GMC Savana 1500 5.7 L V8 won't start. It

CHECK TO SEE IF FUEL PUMP IS COMMING ON WHEN YOU TURN KEY ON.

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