DESCRIPTION
If the engine switch is pressed with the electrical key transmitter sub-assembly in the cabin, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode.
Related Data List and Active Test Items
Problem Symptom |
Data List and Active Test |
---|---|
Power source mode does not change to on (ACC) but does change to on (IG) |
Power Source Control
Starting Control
|
WIRING DIAGRAM
Click here
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
Click here
HINT:
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
PROCEDURE
1. |
CHECK FOR DTC |
(a) Using the Techstream, check for certification ECU (smart key ECU assembly) DTCs.
Body Electrical > Power Source Control > Trouble Codes Body Electrical > Smart Key > Trouble Codes Body Electrical > Starting Control > Trouble Codes
Result |
Proceed to |
---|---|
DTCs are not output |
A |
Smart key system (for Start Function) DTCs are output |
B |
B |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
2. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) |
Click here
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (ACC RELAY) |
Click here
NG |
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
|
4. |
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Click here
OK |
USE SIMULATION METHOD TO CHECK |
NG |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Toyota CH-R Service Manual > Automatic Headlight Beam Level Control System: Initialization has not been Performed (B2450)
DESCRIPTION
The headlight ECU sub-assembly LH stores this DTC if initialization has not been
performed after the ECU was replaced.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Note
B2450
Initializat ...
Toyota CH-R Service Manual > Blower Unit(for Denso Made): Removal
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration)
that must be performed after parts are removed and installed, or replaced during
blower unit removal/installation are shown below.
Necessary Procedure After Parts Removed/Install ...