Scan Tool Output Controls (Over 8600 GVW or PHT)

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Scan Tool Output Control	Additional Menu Selections	Description
Refer to the scan tool manual for complete scan tool operating instructions.
Function Test	-	The EBCM commands the system relay, valve solenoids and pump motor ON and OFF. The EBCM sets a DTC if a malfunction is detected.
Automated Bleed	-	The EBCM commands each valve solenoid and the pump motor ON and OFF in a special sequence in order to bleed air out of the BPMV. Refer to ABS Automated Bleed Procedure for a step-by-step procedure.
ABS Motor	-	This function allows the technician to command the ABS pump motor On and Off.
System Identification	-	The scan tool displays the hardware and software revision of the EBCM.
Tire Size Calibration	Read Tire Calibration New Tire Size	IMPORTANT: The PCM must also be programmed with the correct tire size calibration when different size tires are installed on the vehicle. Refer to Service Programming System (SPS) in Programming. This function allows the technician to read the tire size calibration of the EBCM or calibrate the EBCM to the correct tire size. Calibration must be performed when the EBCM is replaced or when different size tires are installed on the vehicle.
Solenoid Tests	Left Front Isolation Valve Left Front Dump Valve Right Front Isolation Valve Right Front Dump Valve Rear Isolation Valve Rear Dump Valve	This function allows the technician to command a selected valve solenoid On and Off. Use the procedure below in order to verify proper operation of the EBCM and BPMV. Solenoid Test Procedure Raise the vehicle so the wheels are about 15 cm (6 in.) off the floor. Refer to Lifting and Jacking the Vehicle in General Information. Select the desired Solenoid Test on the scan tool. IMPORTANT: Steps 3, 4 and 5 must be performed within a 5 second time period. The EBCM will only energize a solenoid for 5 seconds. Command the solenoid On. Apply the brake. Have an assistant attempt to spin the wheel of the brake circuit being tested. The wheel should spin even though the brake is being applied.
ABS Relay	-	This function allows the technician to command the system relay On and Off.