PROBLEM SYMPTOMS TABLE
HINT:
Symptom |
Suspected Area |
Link |
---|---|---|
Security indicator light does not blink |
Proceed to "Security Indicator Light Does not Blink" |
|
Immobiliser system does not operate properly |
Proceed to "Immobiliser System does not Operate Properly" |
|
Engine cannot be started*1 |
Certification ECU (Smart key ECU assembly) |
|
ECM |
- |
|
SFI system |
- |
|
Power source mode cannot be changed*1 |
Engine switch |
|
Certification ECU (Smart key ECU assembly) |
- |
|
Steering lock lock/unlock not possible*2 |
Steering lock ECU (Steering lock actuator or upper bracket assembly) |
|
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 ...
Toyota CH-R Service Manual > Can Communication System: Check Bus 1 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 23 (CA1H) of the central gateway ECU (network
gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 8 (CA1L) of the central
gateway ECU (network gateway ECU) and ...