Toyota CH-R Service Manual: Operation History List

Toyota CH-R Service Manual / Window / Glass / Power Window Control 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.
  • Manual operation of the power windows using the various seat switches is not stored in the power window operation history.

Operation History

HINT:

Operation history: The main body ECU (multiplex network body ECU) records the power window 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.

(c) Turn the Techstream on.

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

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

Door window opened (opens) by itself.

Tester Display

Item Description

Reason Stored

Notes

Window Open by Door Key Operation

Main body ECU (multiplex network ECU) recognized power window linked opening operation by door key cylinder.

Driver seat key cylinder unlock side operation detected by main body ECU (multiplex network ECU.

  • Driver seat door lock control switch (door key-linked) unlock ON malfunction.
  • Chattering due to poor electrical contact of driver seat door lock control switch (door key-linked) unlock side contact point.
  • Driver seat door lock control switch unlock input ON malfunction.
  • Driver seat door lock control switch unlock input ON malfunction.

-

Window Open by Wireless Operation

Main body ECU (multiplex network body ECU) recognized power window linked opening operation by electronic key.

Press and hold of unlock operation from electronic key detected.

  • Electronic key unlock switch was pressed and held by something while being carried inside a pocket, bag, or similar.
  • Wireless door lock system malfunction.

NOTICE:

The electronic key number* and the time for which the unlock switch was pressed continuously are stored.

*Only for systems which store the electronic key number.

Window Open by Accessory Operation

Main body ECU (multiplex network ECU) recognized window opening operation by accessory.

Press and hold of unlock operation from accessory wireless key detected

  • Accessory wireless key unlock switch was pressed and held by something while being carried inside a pocket, bag, or similar.
  • Accessory wireless key unlock circuit malfunction.

-
Door window closed (closes) by itself.

Tester Display

Item Description

Reason Stored

Notes

Window Close by Door Key Operation.

Main body ECU (multiplex network body ECU) recognized power window linked closing operation by door key cylinder.

Driver seat key cylinder lock side operation detected by main body ECU (multiplex network body ECU).

  • Driver seat door lock control switch (door key-linked) lock ON malfunction.
  • Chattering due to poor electrical contact of driver seat door lock control switch (door key-linked) lock side contact point.
  • Driver seat door lock control switch lock input ON malfunction.
  • Driver seat door lock control switch lock input ON malfunction.

-

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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