DTC B2786: No Response from Steering Lock ECU: Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - AUXILIARY BATTERY AND BODY GROUND)

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

Standard Resistance

Tester Connection	Condition	Specified Condition
A24-6 (E01) - Body ground	Always	Below 1 Ω
A24-5 (E02) - Body ground	Always	Below 1 Ω

Standard Voltage

Tester Connection	Condition	Specified Condition
A23-15 (BATT) - Body ground	Power switch off	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - TRANSMISSION CONTROL ECU ASSEMBLY)

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

Standard Resistance

Tester Connection	Condition	Specified Condition
L62-29 (LIN) - A24-24 (LIN)	Always	Below 1 Ω
L62-29 (LIN) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

REPLACE TRANSMISSION CONTROL ECU ASSEMBLY
1. Replace the transmission control ECU assembly. Refer to REMOVAL .
NEXT: Go to next step
CHECK DTC OUTPUT
1. Clear the DTC. Refer to DTC CHECK / CLEAR .
2. Recheck for DTCs.
  OK
  
  DTC B2786 is not output.
NG → See step 5

OK → END (TRANSMISSION CONTROL ECU ASSEMBLY WAS DEFECTIVE)
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to REMOVAL