Code Definition

B2153 — Rear Echo Sensor Circuit Failure

System: Body  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About B2153

B2153 is a generic (obd-ii standard) body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B2153 is stored, the module has detected a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

Because B2153 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The B2153 fault code indicates that the park assist control module has detected an electrical failure in the rear echo sensor circuit. Echo sensors are ultrasonic transducers mounted in the rear bumper that emit a high frequency pulse and listen for the reflected echo from nearby objects to calculate distance for the rear park assist system. The module sets this code when a sensor fails to respond to a transmit command, when it draws abnormal current, or when the expected echo return signal is missing or out of specification. When set, the driver typically loses some or all of the rear park as...

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