DTC CHECK / CLEAR
NOTICE:
When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
CHECK FOR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (POWER SOURCE CONTROL))
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Power Source Control / Trouble Codes.
Body Electrical > Power Source Control > Trouble Codes(e) Check for DTCs.
CHECK FOR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (ENTRY&START))
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / Trouble Codes.
Body Electrical > Smart Key > Trouble Codes(e) Check for DTCs.
CHECK FOR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (STARTING CONTROL))
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Starting Control / Trouble Codes.
Body Electrical > Starting Control > Trouble Codes(e) Check for DTCs.
CLEAR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (POWER SOURCE CONTROL))
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Power Source Control / Trouble Codes.
Body Electrical > Power Source Control > Clear DTCs(e) Clear the DTCs.
CLEAR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (ENTRY&START))
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / Trouble Codes.
Body Electrical > Smart Key > Clear DTCs(e) Clear the DTCs.
CLEAR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (STARTING CONTROL))
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Starting Control / Trouble Codes.
Body Electrical > Starting Control > Clear DTCs(e) Clear the DTCs.
Toyota CH-R Service Manual > Lin Communication System: Communication Malfunction between ECUs Connected by LIN (B2785)
DESCRIPTION
If the certification ECU (smart key ECU assembly) detects a communication error
with an ECU connected to the certification bus lines for 7 seconds or more, DTC
B2785 will be stored.
DTC No.
Detection Item
DTC Detection Condition
Trouble A ...
Toyota CH-R Service Manual > Smart Key System(for Start Function): Parts Location
PARTS LOCATION
ILLUSTRATION
*1
PARK/NEUTRAL POSITION SWITCH
*2
STARTER ASSEMBLY
*3
NO. 1 ENGINE ROOM RELAY BLOCK
- IG2-MAIN FUSE
- ECU-IG2 NO. 1 FUSE
- ST FUSE
- WIPER FUSE
- ST RELAY
*4
...