Dtc B2288 Steering Lock Signal Circuit Malfunction. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Запуска 2Ad-Fhv. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTCS

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - STEERING LOCK ECU)

CHECK MAIN BODY ECU OPERATION

DTC B2288 Steering Lock Signal Circuit Malfunction


DESCRIPTION

This DTC is output when the main body ECU cannot detect the unlock condition of the steering lock within a specified time.
УКАЗАНИЕ:
When the main body 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.
After the main body ECU is replaced, perform the registration procedures for the engine immobiliser system.

DTC No.
DTC Detection Condition
Trouble Area
B2288
After turning engine switch from off to on (IG), the steering wheel does not unlock for a certain period of time (ECU unlocks steering wheel only when it receives an unlock signal from LIN communication and cable)
  1. Main body ECU
  2. Steering lock ECU
  3. Wire harness or connector

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Запуска 2Ad-Fhv.Система Запуска. Dtc B2288 Steering Lock Signal Circuit Malfunction


INSPECTION PROCEDURE

1.CHECK FOR DTCS

  1. Delete the DTCs (See page Нажмите здесь).

  1. After all DTCs are cleared, check if the trouble occurs again 18 to 22 seconds after the engine switch is turned on (IG).

  1. Check for DTCs again.

    OK:
    DTC B2785 (Communication malfunction between ECUs connected by LIN), DTC B2287 (LIN communication master malfunction) and DTC B2781 (Open/short in steering lock ECU) are not output.
    УКАЗАНИЕ:
    1. If DTC B2785 is output (See page Нажмите здесь).
    2. If DTC B2287 is output (See page Нажмите здесь).
    3. If DTC B2271 is output (See page Нажмите здесь).


NG
GO TO DTC CHART
OK


2.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - STEERING LOCK ECU)


  1. Disconnect the E50 and E39 ECU connectors.


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Запуска 2Ad-Fhv.Система Запуска. Dtc B2288 Steering Lock Signal Circuit Malfunction

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E50-18 (SLP) - E39-4 (SLP1)
    		Always
    		Below 1 Ω
    E50-18 (SLP) or E39-4 (SLP1) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK MAIN BODY ECU OPERATION

  1. After replacing the main body ECU with a normally functioning ECU, check that the steering lock/unlock function operates normally.

    OK:
    Steering lock/unlock function operates normally.
    УКАЗАНИЕ:
    If steering lock/unlock function does not operate, refer to PROBLEM SYMPTOMS TABLE of the electrical steering lock (steering wheel cannot be unlocked).


NG
GO TO ELECTRIC STEERING LOCK (Нажмите здесь)
OK

END (MAIN BODY ECU DEFECTIVE)