Dtc B2281 P Signal Malfunction

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Theft Deterrent Keyless Entry. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (SHIFT P SIGNAL)

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - SHIFT LOCK CONTROL ECU AND BODY GROUND)

INSPECT SHIFT LOCK CONTROL ECU

DTC B2281 "P" Signal Malfunction


DESCRIPTION

This DTC is stored when there is an abnormal circuit between the main body ECU and the shift lock control ECU.

DTC Code
Detection Condition
Trouble Area
B2281
Communication or the communication line is abnormal between the main body ECU and shift lock control ECU.
  1. Main body ECU
  2. Shift lock control ECU
  3. Harness or connector

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2281 P Signal Malfunction


INSPECTION PROCEDURE

1.READ VALUE USING INTELLIGENT TESTER (SHIFT P SIGNAL)

  1. Use the Data List to check if the shift position signal is functioning properly.

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Shift P Signal
    		Shift P position signal/ON or OFF
    		ON: Shift lever in P
    OFF: Shift lever not in P
    		-
    Result
    Result
    		Proceed to
    Display on the intelligent tester does not change according to shift lever operation
    		A
    Display on the intelligent tester changes according to shift lever operation
    		B


B
REPLACE MAIN BODY ECU
A


2.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - SHIFT LOCK CONTROL ECU AND BODY GROUND)

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2281 P Signal Malfunction

  1. Disconnect the E4 main body ECU connector.

  1. Disconnect the E51 shift lock control ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E4-2 (P) - E51-11 (P2)
    		Always
    		Below 1 Ω
    E51-3 (E) - Body ground
    		Always
    		Below 1 Ω
    E4-2 (P) or E51-11 (P2) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT SHIFT LOCK CONTROL ECU


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2281 P Signal Malfunction
    Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2281 P Signal Malfunction

  1. Check the signal waveform according to the condition(s) in the table below.

    Reference
    Terminal No. (Symbol)
    		Tool Setting
    		Condition
    E51-11 (P2) - E51-3 (E)
    		2 V/DIV., 20 msec./DIV.
    		Shift lever in P
    OK:
    The waveform is similar to that shown in the illustration.
    Result
    Result
    		Proceed to
    OK
    		A
    NG
    		for 1GR-FE
    		B
    for 1VD-FTV, 3UR-FE, 1UR-FE
    		C


B
REPLACE SHIFT LOCK CONTROL ECU (Click here)

C
REPLACE SHIFT LOCK CONTROL ECU (Click here)
A

REPLACE MAIN BODY ECU