DTC B276C-88: Alarm / Wiper LIN Bus off [11/2023 - ]: Procedure

Pre-procedure1

1. Disconnect the H136 main body ECU (multiplex network body ECU) connector.
2. Disconnect the R4 rain sensor connector.

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H136-11 (LIN4) - R4-3 (MPX)	Always	Below 1 Ω
   H136-11 (LIN4) or R4-3 (MPX) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   Post-procedure1

4. None

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

Pre-procedure1

1. Connect the H136 main body ECU (multiplex network body ECU) connector.

   Procedure1

2. Clear the DTCs.

   Body Electrical > Main Body > Clear DTCs 

   Result

   Proceed to
   NEXT

   Post-procedure1

3. None

Result: 

NEXT 

See step  3

1. Check for DTCs.

   Body Electrical > Main Body > Trouble Codes 

   Result

   Result	Proceed to
   B276C-88 is output	A
   B276C-88 is not output	B

Result: 

A 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [11/2023 - ] 

Result: 

B 

REPLACE RAIN SENSOR. Refer to  REMOVAL [12/2019 - ]