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 MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 139 (HYBRID ENGINE ELECTRICAL SYSTEM)DIAGNOSTIC INFORMATION & PROCEDURESDTC C0895 (PSCM)TYPICAL SCAN TOOL DATA
2009 Chevrolet Tahoe Base, 4.8 C
Typical Scan Tool Data
2009 Chevrolet Tahoe Base, 4.8 CSECTION Typical Scan Tool Data
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
42V Circuit Voltage - APM
| Circuit | Short to Ground | Open | Short to Voltage |
|---|---|---|---|
| Operating Conditions:
Engine running Parameter Normal Value: 42.00 Volts |
|||
| 42V+ | 0.00 Volts | 42.00 Volts | - |
42V Maximum Voltage - APM
| Circuit | Short to Ground | Open | Short to Voltage |
|---|---|---|---|
| Operating Conditions:
Driving over bumps Parameter Normal Range: 42.00 - 50.00 Volts |
|||
| PSCM Diode | - | > 50.00 Volts | - |
Intermediate Voltage - PSCM
| Circuit | Short to Ground | Open | Short to Voltage |
|---|---|---|---|
| Operating Conditions:
Engine running Parameter Normal Range: 41.50 - 42.00 Volts |
|||
| 42V+ | 0.00 Volts | 1.10 Volts | - |
RENDER: 1.0x
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.