How to fix no communication problems on 2008 GM?
Let’s say BCM module is the suspect. Disconnect S3 after connecting S2 and see if voltage goes back to normal. If it is, then the BCM is the real problem. When testing HIGH SPEED BUS LINES OR MODULES on the right…you can use an ohmmeter and hook up the ohmmeter leads between DLC pin 6 and pin 14.
Where is the DLC connector on a GM ABS?
Locate the DLC connector found under the dashboard and just above the pedals. Plug the computerized scan tool into it and power on the scan tool. Navigate to the “ABS” menu on the computerized scan tool by pushing the down arrow button. Select “Clear all codes.” Power off the computerized scan tool and disconnect it from the DLC connector.
What does it mean when your ABS module is still on?
When it senses a problem, the ABS module on the dashboard will light up. When the problem is fixed, the module will sometimes still stay on, and it will need to be rest. This is an easy process, and takes a few minutes to complete. Turn the vehicle off and put it into park.
Is there a no communication fault on my Silverado?
When testing NO COMMUNICATION fault message from your scanner, please use this as your guide. With a voltmeter handy, you can prevent garages from charging you expensive rates to fix this problem. Shown above is the DLC data bus communication network of a 2008 GM Silverado Truck.
When it senses a problem, the ABS module on the dashboard will light up. When the problem is fixed, the module will sometimes still stay on, and it will need to be rest. This is an easy process, and takes a few minutes to complete. Turn the vehicle off and put it into park.
Locate the DLC connector found under the dashboard and just above the pedals. Plug the computerized scan tool into it and power on the scan tool. Navigate to the “ABS” menu on the computerized scan tool by pushing the down arrow button. Select “Clear all codes.” Power off the computerized scan tool and disconnect it from the DLC connector.
How does the GM ABS brake system work?
The antilock brake system (ABS) is controlled by its own computer. When it senses a problem, the ABS module on the dashboard will light up. When the problem is fixed, the module will sometimes still stay on, and it will need to be rest. This is an easy process, and takes a few minutes to complete. Turn the vehicle off and put it into park.
Is the communication line on the OBD II working?
Communication line does not provide the power. The power is pulled from the pos and neg ports on the obd ii. There is something wrong with your communication wire Click to expand… This is what I feared….. I checked all the fuses and couldn’t find a single blown one.