Is there a problem with my GM Truck?
From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. Truck wont start. PassLock Security issues Ill try to keep this brief. Just bought truck about a month ago. Truck was running/driving fine until about two weeks ago.
How to reset PassLock reset system on Chevy?
1. Turn the key to ON and attempt to start the engine and release the key to the ON position. 2. The SECURITY light will illuminate. Wait 10 minutes until it turns off. 3. Turn the key to OFF for 10 seconds. 4. Turn the key to ON and attempt to start the engine.
Why is my PassLock on my truck not working?
The P1518 is a tac module communication fault which will have to be repaired in the future and possibly first before the vehicle will crank because the communication issue may not let the theft system relearn. But we are going to see what we can do, before doing that.
What should the voltage drop be on a GMC Truck?
The voltage drop should be performed with the fuel injectors disabled and while cranking the engine. The voltage drop should not exceed 200 mV. If the voltage drop is above 200 mV, replaced the effected cable. Please follow this diagnostic or repair process thoroughly and complete each step.
What do you need to know about GM security module?
Connect a battery charger to the battery to ensure power is available while programming. Both the IPC/BCM and PCM must be working and communicating with each other. Observe the “SECURITY” indicator After 10 minutes the “SECURITY” indicator light will turn off.
From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. Truck wont start. PassLock Security issues Ill try to keep this brief. Just bought truck about a month ago. Truck was running/driving fine until about two weeks ago.
1. Turn the key to ON and attempt to start the engine and release the key to the ON position. 2. The SECURITY light will illuminate. Wait 10 minutes until it turns off. 3. Turn the key to OFF for 10 seconds. 4. Turn the key to ON and attempt to start the engine.
The P1518 is a tac module communication fault which will have to be repaired in the future and possibly first before the vehicle will crank because the communication issue may not let the theft system relearn. But we are going to see what we can do, before doing that.