B1451 01 Accessory Power Circuit Short to Battery
B1451 02 Accessory Power Circuit Short to Ground
B1451 04 Accessory Power Circuit Open
Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the B1451 Buick code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
The Keyless Entry Control Module provides backup controls for the ignition power circuit, through the control circuit, by applying voltage to the circuit. The ignition power circuit is energized when the vehicle power mode is in Vehicle ON or Vehicle in Service Mode.
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