ENTRY AND START SYSTEM (for Start Function), Diagnostic DTC:B2281

DTC Code DTC Name
B2281 "P" Signal Malfunction

DESCRIPTION

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

Tech Tips

When the power source control ECU is replaced with a new one and the negative (-) battery terminal is connected, the power source mode becomes the IG-ON mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.

DTC No. DTC Detection Condition Trouble Area
B2281 Cable and BEAN between the power source control ECU and the shift lock control ECU are inconsistent

  • Power source control ECU

  • Shift lock control ECU

  • ECM

  • Wire harness or connector

WIRING DIAGRAM

A015YVGE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK MULTIPLEX COMMUNICATION SYSTEM


    1. Clear the DTC Click here.

    2. Check for the multiplex network communication system DTCs B1210, B1214 and B1215.

      Tech Tips

      If the DTCs for the multiplex network communication system malfunction are output, inspect those DTCs first.

      OK
      DTC B1210, B1214 and B1215 are not output.

    NG

    GO TO MULTIPLEX COMMUNICATION SYSTEM Click here

    OK

  2. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Read the Data List according to the display on the intelligent tester.

      Power Source Control
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Shift P Signal Shift P position/ON or OFF

      ON: Shift position is P

      OFF: Shift position is not P

      		 -
      OK
      ON (shift position is P) and OFF (shift position is not P) appear on the screen.

    NG

    GO TO AUTOMATIC TRANSMISSION SYSTEM (DTC P0705) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CONTROL ECU - SHIFT LOCK CONTROL ECU)


    1. A0162RRE13

      Disconnect the J55 connector from power source control ECU.

    2. Disconnect the J48 connector from shift lock control ECU.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J55-5 (P) - J48-11 (P2) Always Below 1 Ω
      J55-5 (P) or J48-11 (P2) - Body ground Always 10 kΩ or higher
      J48-8 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CONTROL ECU - SHIFT LOCK CONTROL ECU)

    OK

  4. INSPECT SHIFT LOCK CONTROL ECU


    1. A01604NE01

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J48-11 (P2) - J48-8 (E) Shift position is P Below 1 Ω
      J48-11 (P2) - J48-8 (E) Shift position is except P 10 kΩ or higher

    NG

    REPLACE SHIFT LOCK CONTROL ECU Click here

    OK

    REPLACE POWER SOURCE CONTROL ECU