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 MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 128 (ANTILOCK BRAKE SYSTEM WITH TRACTION CONTROL SYSTEM & STABILITY CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESABS INDICATOR ALWAYS ONTEST DESCRIPTION
2006 Buick Terraza CXL, 3.5 L, AWD
Test Description
2006 Buick Terraza CXL, 3.5 L, AWDSECTION Test Description
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to step number on the diagnostic table.
- 2: This step checks if the IPC has the ability to turn the ABS indicator OFF or if the EBCM is sending an incorrect command to turn the ABS indicator ON.
ABS Indicator Always On
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: ABS Schematics | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Using a scan tool in the Instrument Panel Cluster (IPC) Special Functions, attempt to turn OFF the antilock brake sytem (ABS) indicator. Did the ABS indicator turn OFF? |
Go to Step 3 | Go to Step 4 |
| 3 | Replace the electronic brake control module (EBCM). Refer to Control Module References
for replacement, setup and programming. Is the replacement complete? |
Go to Step 5 | - |
| 4 | Replace the IPC. Refer to Control Module References
for replacement, setup and programming. Is the replacement complete? |
Go to Step 5 | - |
| 5 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |
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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.