Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
To help avoid personal injury, always treat the accessory power receptacle, accessory DC/AC power inverter module, AC circuit wires, and connectors as if AC high-voltage is present.
- Ignition OFF, test for 12.0-15.0 V across the battery terminals.
- If not within the specified range, refer to Battery Inspection/Test .
- Ignition ON, connect an AC power extension cord to the X81 accessory power receptacle - 110 V AC. Inserting the extension cord plug into the X81 accessory power receptacle - 110 V AC turns the T1 accessory DC/AC power inverter module ON.
- Verify the receptacle indicator light comes ON.
- Test for 110-120 V between the terminals of the extension cord.
- Test for 59-61 Hz AC between the terminals of the extension cord.