DTC    B1217    Rear Door ECU LH Communication Stop

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DESCRIPTION

  1. This DTC is detected when communication between the multiplex network door ECU rear LH (rear door LH ECU) and gateway ECU stops for more than 10 seconds.

DTC No.
DTC Detection Condition
Trouble Area
B1217
Rear door LH ECU communication stops
  1. Multiplex network door ECU rear LH (rear door LH ECU)
  1. Wire harness

WIRING DIAGRAM


B111302E01


INSPECTION PROCEDURE

1.CHECK OPERATION

  1. Open the rear door LH and check that the door warning light (built into combination meter) illuminates.

    OK:
    Door warning light illuminates.



NG
Go to step 2
OK

REPLACE MULTIPLEX NETWORK DOOR ECU REAR LH (REAR DOOR LH ECU) 

2.CHECK WIRE HARNESS (MULTIPLEX NETWORK DOOR ECU REAR LH (REAR DOOR LH ECU) - BATTERY AND BODY GROUND)
B109184E07

  1. Disconnect the Q2 ECU connector.

  1. Measure the resistance and voltage of the wire harness side connector.

    Standard voltage:
    Tester Connection
    		Specified Condition
    Q2-4 (CPUB) - Body ground
    		10 to 14 V

    Standard resistance:
    Tester Connection
    		Specified Condition
    Q2-1 (GND) - Body ground
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


3.CHECK RESISTANCE OF COMMUNICATION LINE

E109773E05

  1. Disconnect the Q2, O3, U1 and P3 ECU connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    Q2-8 (MPX1) - O3-9 (MPX2)
    		Below 1 Ω
    Q2-7 (MPX3) - U1-4 (MPX1)
    		Below 1 Ω
    Q2-9 (MPX2) - P3-9 (MPX2)
    		Below 1 Ω

    Result:
    Result
    		Proceed to
    Both are OK
    		A
    One is OK
    		B
    Both are NG
    		C



B
REPLACE MULTIPLEX NETWORK DOOR ECU REAR LH AND WIRE HARNESS CONNECTOR

C
REPAIR OR REPLACE HARNESS AND CONNECTOR
A

REPLACE MULTIPLEX NETWORK DOOR ECU REAR LH (REAR DOOR LH ECU)