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DTC B2281: "P" Signal Malfunction: Description

WARNING: This page is about a different car, the 2012 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

The ECM and the shift lock control ECU are connected by a cable and the CAN. If the cable information and CAN information are inconsistent, this DTC will be output.

HINT: 

If the main body ECU (instrument panel junction block) is replaced with a new one while the cable from the negative (-) battery terminal is connected, the power source mode will be in IG-ON mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored. After the main body ECU (instrument panel junction block) is replaced, perform the registration procedure for the engine immobilizer system. Refer to REGISTRATION .

DTC No. DTC Detection Condition Trouble Area
B2281 Cable information and CAN information between main body ECU (instrument panel junction block) and shift lock control ECU are inconsistent
  • Main body ECU (instrument panel junction block)
  • Shift lock control ECU
  • Wire harness or connector