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.
2003 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE
Scan Tool Output Controls
Electronic Brake Control Module (EBCM) Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
| ABS Relay | - | Commands the ABS relay ON and OFF. |
| Automated Bleed | - | Used in order to bleed the ABS hydraulics. Refer to Automated Bleed Procedure. |
| Automated Test | - | Cycles each solenoid valve and the pump motor in order to verify component operation. This test is identical to the Initialization Sequence. If a malfunction is detected, the EBCM will set the appropriate DTCs. The DTCs will be displayed upon completion of the test. |
| LF Inlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| LF Outlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| LR Inlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| LR Outlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| RF Inlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| RF Outlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| RR Inlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| RR Outlet Solenoid | Solenoid Test | Commands the solenoid ON and OFF. |
| TIM Reset | - | Used in order to reset the tire inflation monitor. |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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