Code Definition

B1B36 (12-AF) — Right Front Outer Sensor

System: Body  |  Type: Manufacturer-Specific  |  Make: Ford

About B1B36

B1B36 is a manufacturer-specific body diagnostic trouble code recorded for Ford vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1B36 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.

B1B36 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Parking Aid Module (PAM) on Ford vehicles monitors each ultrasonic parking sensor by supplying a switched power feed and reading a return signal as the sensor transmits and receives the ultrasonic burst. DTC B1B36:12 is stored when the PAM detects a short to battery (high voltage) condition on the right front outer sensor circuit, meaning the signal or supply line is being pulled up to a voltage higher than the expected operating range. The AF subcode is a Ford specific status descriptor indicating the fault was a confirmed event. When this code is active the PAM will typically disable the...

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