DIAGNOSIS SYSTEM
CHECK DLC3
(a) Check the DLC3.
Click here
INSPECT BATTERY VOLTAGE
(a) Measure the vehicle battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery.
SELF-DIAGNOSTIC MODE (USING TECHSTREAM)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Wireless Door Lock Diagnosis Mode.
Body Electrical > Main Body > Utility
Tester Display |
---|
Wireless Door Lock Diagnosis Mode |
(e) Proceed to the next step in accordance with the prompts on the Techstream screen.
(f) Check that the system has switched to self-diagnostic mode by checking the interior light output pattern.
(g) Check the diagnostic outputs when a door control transmitter assembly switch is pressed. The diagnostic outputs can be checked by the interior light patterns.
Interior Light Output |
Suspected Area |
---|---|
A |
Normal (No malfunction) |
B |
Register wireless code |
C |
Wave interference or malfunction of a related component |
Toyota CH-R Service Manual > Lin Communication System: No Response from ID BOX (B2789)
DESCRIPTION
This DTC is stored when LIN communication between the certification ECU (smart
key ECU assembly) and ID code box (immobiliser code ECU) stops for 10 seconds or
more.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
...
Toyota CH-R Service Manual > Immobiliser System(w/ Smart Key System): ID BOX EEPROM Malfunction (B2790)
DESCRIPTION
When an internal malfunction occurs in the ID code box (immobiliser code ECU),
the certification ECU (smart key ECU assembly) stores this DTC.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Note
B279 ...