How to fix service brake system on GMC Truck?
How to fix service brake system on GMC Truck?
Tighten the nut to 9 N·m (79 lb in). Cover the front and back side of the repair area using Rubberized Undercoating. An additional check can be made to ensure a good connection for the Battery Cable to Frame ground. It is possible for this ground to cause similar symptoms with the ABS as described above
How to test brake resistance on GMC Truck?
Disconnect the connector at the Electronic Brake Control Module (EBCM) and test resistance between pins A3 a Dk Green wire and B3 a Tan wire. Should be between 700-10k ohms. Compare to the pins A2 and B2. The values should be the same. 2. If an open circuit, go to the speed sensor itself, disconnect it, and check resistance across the sensor. 3.
What should resistance be for brake control module?
Disconnect the connector at the Electronic Brake Control Module (EBCM) and test resistance between pins A3 a Dk Green wire and B3 a Tan wire. Should be between 700-10k ohms. Compare to the pins A2 and B2.
How to know if service trailer brake sytem is active?
The vehicle speed is less than 40.2 km/h (25 mph). The vehicle speed is too high. The vehicle is in PARK, REVERSE, NEUTRAL, or 1st gear. The engine RPM is too low. The engine RPM is too high. The system voltage is not between 9-16 volts. The Antilock Brake System (ABS)/Traction Control System (TCS) is active for more than 2 seconds.
Tighten the nut to 9 N·m (79 lb in). Cover the front and back side of the repair area using Rubberized Undercoating. An additional check can be made to ensure a good connection for the Battery Cable to Frame ground. It is possible for this ground to cause similar symptoms with the ABS as described above
Disconnect the connector at the Electronic Brake Control Module (EBCM) and test resistance between pins A3 a Dk Green wire and B3 a Tan wire. Should be between 700-10k ohms. Compare to the pins A2 and B2. The values should be the same. 2. If an open circuit, go to the speed sensor itself, disconnect it, and check resistance across the sensor. 3.
Disconnect the connector at the Electronic Brake Control Module (EBCM) and test resistance between pins A3 a Dk Green wire and B3 a Tan wire. Should be between 700-10k ohms. Compare to the pins A2 and B2.
What causes a drum brake to stop working?
The common cause of this is a broken or weak retracting spring on drum brakes, corroded or jammed caliper piston, corroded mounting pins or the bushings on a floating caliper, the drum brake self-adjusters are overextended or there is an emergency brake cable that is sticking or is frozen in place.
