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's pins.
The cost of diagnosing the B2553 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
The Body Control Module (BCM) turns ON the following relays to ignition power supply to each ECU when the ignition switch is turned ON: Ignition relay-1, Ignition relay-2, and Blower fan motor relay. The BCM checks any ignition relay ON request for consistency with the actual ignition relay operation status. The Diagnostic Trouble Code (DTC) sets when the BCM detects a difference of signal for 2 seconds or more between the following information: Ignition relay-2 (fuse block) ON/OFF operation
Ignition relay-2 (fuse block) feedback.
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