Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
To diagnose the B144B Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.
The Body Control Module (BCM) controls the Ignition Main Relay (underhood) and the Ignition Main Relay (instrument panel left) through their control circuits by applying a voltage to the ignition run/crank relay coil control circuit. The Ignition Main Relay (underhood) and Ignition Main Relay (instrument panel left) are energized when the ignition switch is in the RUN or the CRANK position, or when a remote start is requested.
The Diagnostic Trouble Code (DTC) will be set when there is a fault in the Ignition Main Relay Circuit.
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