Toyota CH-R Service Manual: Operation History List

Toyota CH-R Service Manual / Theft Deterrent / Keyless Entry / Theft Deterrent System / Operation History List

OPERATION HISTORY LIST

NOTICE:

If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has been read out and saved, the operation history information could be lost.
The function "Read operation history" uses the current system time setting inside the Techstream and the time counter inside the controlling ECU to calculate the timings shown in the operation history. For this reason, before reading out the operation history, first make sure that the Techstream system clock is accurately set to the current time.
Before replacing the main body ECU (multiplex network body ECU), refer to REGISTRATION*1.
Click here

*1: w/ Smart Key System
The ignition switch is off and all the doors, and the hood are closed and all doors are locked by wireless operation or entry operation*1.
*1: w/ Smart Key System

Operation History

HINT:

Operation history: The main body ECU (multiplex network body ECU) records the theft deterrent system operation history, which can be read out using the Techstream.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Body Electrical / Main Body / Utility / Operation History.

(e) Following the instructions on the screen, save the operation history.

Auto alarm activated for no reason

Tester Display	Item Description	Vehicle Condition / Environment		Reason for Detection	Notes
Hood Open	Hood Courtesy Switch ON detected. (Hood open)	Vehicle	Hood Courtesy Switch system malfunction	Change in Hood Courtesy Switch circuit ON/OFF status detected	NOTICE: Even when the inspection result is normal, if the alarm often sounds due to the same operational cause "Hood open", after first making sure that the cause is not partial engagement of a connector, replace the hood courtesy switch.
Hood Open	Hood Courtesy Switch ON detected. (Hood open)	Environment	Hood vibration occurs due to strong wind, etc. when hood is partially open	"Hood open" detected due to vibration
Door Open	Any door courtesy switch ON detected. (Any door open)	Vehicle	Door courtesy light switch system malfunction	Ground short in courtesy light switch circuit detected	NOTICE: Even when the inspection result is normal, if the alarm often sounds due to the same operational cause "Door open", after first making sure that the cause is not partial engagement of a connector, replace all door courtesy light switches.
Door Unlock	Any door lock position switch ON detected. (Any door unlocked)	Vehicle	Door lock position switch system malfunction Door unlocked using mechanical key	Ground short in door lock position switch circuit detected Unlocking of door lock detected	NOTICE: Even when the inspection result is normal, if the alarm often sounds due to the same operational cause "Door unlocked", after first making sure that the cause is not partial engagement of a connector, replace all lock position switches.
IG	w/o Smart Key System: Key switch (unlock warning switch) OFF and IG ON detected. w/ Smart Key System: IG OFF → IG ON detected 5 seconds or more after engine switch pressed.	Vehicle	Ignition system malfunction	+B short in ignition circuit detected	-
Battery Desorption	Disconnection and reconnection of vehicle battery detected.	Vehicle	While alarm is armed, for a reason such as battery depletion, etc., "Battery removal → installation" or "Jump start using booster cables" was performed.	System is configured to sound the alarm if battery (+B circuit) is disconnected → reconnected while alarm is armed.	NOTICE: Even when the inspection result is normal, if the alarm often sounds due to the same operational cause "Battery", replace the main body ECU (multiplex network body ECU).
Battery Desorption	Disconnection and reconnection of vehicle battery detected.	Vehicle	Momentary disconnection in +B circuit

HINT:

Explanation of the indication item of the operation history.

Item	Description
Time Information	Time that the main body ECU (multiplex network body ECU) performed each operation history item.
IG ON/OFF Count	Counter that is incremented when turning ignition switch from ON to OFF. Initial value is 0 times, maximum value is 255 times. When value reaches 255, it returns to 0 at the next incrementation and counting continues.
Operation Details	Name of the operation history performed by the main body ECU (multiplex network body ECU).
Elapsed Time After CPU reset	Starting from the point in time when battery voltage supply to the main body ECU (multiplex network body ECU) began, the elapsed time until each operation history item was performed.
CPU Reset Count	The number of times battery voltage supply to the main body ECU (multiplex network body ECU) went from a non-energized* to an energized state. Initial value is 0 times, maximum value is 3 times. When value reaches 3, it returns to 0 at the next incrementation and counting continues. *: Operation history that results in a non-energized state includes removal/installation of the battery, removal/installation of the main body ECU (multiplex network body ECU), battery voltage decrease, etc.

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