Toyota CH-R Service Manual > Can Communication System: Check Bus 4 Line for Short to +B
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and +B when no
resistance exists between terminal 22 (CA2H) of the central gateway ECU (network
gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the central
gateway ECU (network gateway ECU) and t ...
Toyota CH-R Service Manual > Navigation System: Extension Module Malfunction 2 (B1556)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the Navigation ECU.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
B1556
Extension Module Malfunction 2
When any of the following condition ...