SYSTEM DIAGRAM
1. DOOR BUS LINES
2. CERTIFICATION BUS LINES (w/ Smart Key System)

System Description
How To Proceed With TroubleshootingLost Communication with Power Source Control (B278C)
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
B278C
An internal malfunction occurs in the certification ECU (smart key ECU
assembly)
Certification ECU (smart key ECU assembly)
CAUTI ...
Check Bus 3 Line for Short to GND
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and GND when there
is no resistance between terminal 6 (CA3H) of the central gateway ECU (network gateway
ECU) and terminal 4 (CG) of the DLC3, or terminal 21 (CA3L) of the central gateway
ECU (network gateway ECU) and ...
Removal
REMOVAL
PROCEDURE
1. REMOVE SHIFT LEVER KNOB SUB-ASSEMBLY (for Automatic Transmission)
(a) Using a molding remover A, disengage the 2 claws to separate the
shifting hole cover sub-assembly.
(b) Rotate the shift lever knob sub-as ...