Code Definition

B1342 — ECU Is Defective

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

About B1342

B1342 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.

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.

B1342 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

DTC B1342 sets when a Ford control module performs an internal self test on power up or during operation and determines that one or more of its internal hardware or software functions has failed in a way that cannot be corrected by clearing codes or cycling the ignition. The code can be raised by the BCM, PCM, instrument cluster, vehicle security module, or other Ford ECUs depending on the vehicle, since the diagnostic text is generic to any module that runs internal self diagnostics. Common internal failures detected include corrupted EEPROM data, ROM checksum errors, RAM faults, watchdog tim...

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