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 118 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL DATA LIST
2006 Buick Terraza CXL, 3.5 L, AWD
Scan Tool Data List
2006 Buick Terraza CXL, 3.5 L, AWDSECTION Scan Tool Data List
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.
Body Control Module (BCM)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition ON/Engine Running | |||
| Battery Voltage | Data | Volts | 12.6 Volts |
| Regulated Voltage Control Current Sensor | Data | % | 0 % |
| Starter Switch | Inputs | Released/Cranking | Released |
Instrument Panel Cluster (IPC)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition ON/Engine Running | |||
| Battery Voltage | Data | Volts | 12.6 Volts |
Powertrain Control Module (PCM)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition ON/Engine OFF/Transmission in Park | |||
| Crank Request Signal | Data Display | Yes/No | No |
| GEN F-Terminal Signal | Data Display | % | 45% |
| GEN L-Terminal Signal Command | Data Display | On/Off | OFF |
| Ignition 1 Signal | Data Display | Volts | 12.6 Volts |
| IMS | Transmission Data | Drive 3, Drive 4\Drive 3, Park\Reverse, Reverse, Drive 3\Drive 2, Drive 2, Park, Invalid, Neutral\Drive 4, Drive 4, Neutral, Reverse\Neutral, Drive 1, Drive 2\Drive 1, Invalid, Open | Park |
| Starter Relay Circuit History | Data Display | OK/Open/Short/Invalid | OK |
| Starter Relay Command | Data Display | On/Off | Off |
Engine Control Module (ECM)
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Ignition ON/Engine OFF/Transmission in Park | |||
| Crank Request Signal | Data Display | Yes/No | No |
| Current Gear | Data Display | P/N, 1st, 2nd, 3rd, 4th, 5th, Reverse | P/N |
| GEN F-Terminal Signal | Data Display | % | 45% |
| GEN L-Terminal Signal Command | Data Display | % | 10% |
| Ignition 1 Signal | Data Display | On/Off | Off |
| IMS | Transmission Data | Drive 3, Drive 4\Drive 3, Park\Reverse, Reverse, Drive 3\Drive 2, Drive 2, Park, Invalid, Neutral\Drive 4, Drive 4, Neutral, Reverse\Neutral, Drive 1, Drive 2\Drive 1, Invalid, Open | Park |
| PNP Switch | Data Display | Park/Neutral, In Gear | Park/Neutral |
| Starter Relay Command | Data Display | On/Off | Off |
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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.