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.
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HOMESERVICE MANUALSBUICK2000PARK AVENUE BASE, 3.8 KREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - SELF-DIAGNOSTICS - 3.8LDIAGNOSTIC TESTSDTC P1602: LOST COMMUNICATIONS WITH BRAKE/TRACTION CONTROL (EBTCM) SYSTEM (IMPALA & MONTE CARLO)DIAGNOSTIC PROCEDURES
2000 Buick Park Avenue Base, 3.8 K
Diagnostic Procedures
2000 Buick Park Avenue Base, 3.8 KSECTION Diagnostic Procedures
- Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK . After performing OBD system check, go to next step.
- Using scan tool, select ABS data. If ABS data can be displayed, see DIAGNOSTIC AIDS . If ABS data cannot be displayed, see DLC DIAGNOSIS OR NO SCAN TOOL DATA .
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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.