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.
Result
|
Interior Light Output |
Suspected Area |
|---|---|
|
A |
Normal (No malfunction) |
|
B |
Register wireless code |
|
C |
Wave interference or malfunction of a related component |
Problem Symptoms Table
Terminals Of EcuToyota 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 Entry Function): Operation History List
OPERATION HISTORY LIST
NOTICE:
The cause of a malfunction is stored in the RAM or EEPROM in the certification
ECU (smart key ECU assembly). As the cause of a malfunction stored in the
RAM will be cleared when the cable is disconnected from the negative (-)
battery terminal, do ...