Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Scan Tool Output Controls
| 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 Antilock Brake System Automated Bleed for a step-by-step procedure. |
| ABS Motor | - | This function allows the technician to command the ABS pump motor On and Off. The EBCM sets a DTC if a malfunction is detected. |
| System Identification | - | The scan tool displays the hardware and software revision of the EBCM. |
| Tire Size Calibration |
|
IMPORTANT:
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.The PCM must also be programmed with the correct tire size calibration when different size tires are installed on the vehicle. Refer to Powertrain Control Module Programming (Off-Board) , Powertrain Control Module Programming (On-Board) , in Engine Controls - 4.3L, Powertrain Control Module Programming (Offboard) , Powertrain Control Module Programming (Onboard) , in Engine Controls - 4.8L, 5.3L, and 6.0L, Engine Control Module Programming Procedure (Off-Board) , Engine Control Module Programming Procedure (On-Board) , in Engine Controls - 6.6L or Powertrain Control Module Programming (On-Board) , Powertrain Control Module Programming (Off-Board) in Engine Controls - 8.1L. |
| Lamp Tests |
|
This function allows the technician to command the ABS indicator or the red BRAKE warning indicator On and Off. |
| Solenoid Tests |
|
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
|
| ABS Relay | - | This function allows the technician to command the system relay On and Off. The EBCM sets a DTC if a malfunction is detected. |
| Low Trac Lamp | - | This function allows the technician to command the LOW TRACTION indicator On and Off. |
| Traction Off Lamp | - | This function allows the technician to command the TRACTION OFF indicator On and Off. |
| Requested Torque | - | This function allows the technician to request engine torque reduction in order to verify proper operation of the Traction Control System. |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.