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 > Id Code Box: Installation
INSTALLATION
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the ID code box (immobiliser code ECU), refer to Registration.
Click here
PROCEDURE
1. INSTALL ID CODE BOX (IMMOBILISER CODE ECU)
(a) Engage the guides to install the ID code box (immobiliser code ECU) as shown
in the illustrat ...
Toyota CH-R Service Manual > Theft Deterrent System: Customize Parameters
CUSTOMIZE PARAMETERS
CUSTOMIZE THEFT DETERRENT SYSTEM
NOTICE:
When the customer requests a change in a function, first make sure that
the function can be customized.
Be sure to make a note of the current settings before customizing.
When troubleshooting a function, first ma ...