Toyota CH-R Service Manual: Improper Operation

Toyota CH-R Service Manual / Window / Glass / Power Window Control System / Improper Operation

DESCRIPTION

In cases where a door window closed (closes) by itself even though a window closing operation was not performed, possible causes include vehicle-side malfunction, environmental causes, or operation by the customer (including other passengers in the vehicle). By using the operation history, the possible causes of the malfunction can be narrowed down, allowing the problem to be resolved by repair, replacement, or in some cases explaining the environmental or usage issues to the customer.

In cases where a door window opened (opens) by itself even though a window opening operation was not performed, possible causes include vehicle-side malfunction, environmental causes, or operation by the customer (including other passengers in the vehicle). By using the operation history, the possible causes of the malfunction can be narrowed down, allowing the problem to be resolved by repair, replacement, or in some cases explaining the environmental or usage issues to the customer.

WIRING DIAGRAM

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CAUTION / NOTICE / HINT

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.

PROCEDURE

1.

CHECK POWER WINDOW OPERATION HISTORY

(a) Use the Techstream to check the door glass operation history around the time that the malfunction reported by the customer occurred, based on the contents of the customer interview and the last recorded door window operation history around the time that the problem is reported to have occurred.

(1) On the Techstream screen, enter the following menus: Body Electrical / Main Body / Utility / Operation History Analysis. According to the display on the Techstream, read the operation history.

Click here

(2) Check that there is power window operation history as reported by the customer.

Click here

HINT:

Based on the displayed operation history, perform vehicle-side inspection, and perform repairs if a problem is found. If the vehicle has no malfunction, interview the customer about possible causes such as "the driver" and "environmental / other than the driver".

Result

Proceed to

There is no operational history around the time that the customer reported the malfunction to have occurred

A

There is operational history around the time that the customer reported the malfunction to have occurred, and by following the instructions to inspect the relevant areas, the malfunction was identified

B

There is operational history around the time that the customer reported the malfunction to have occurred, but the malfunction could not be identified even by following the instructions to inspect the relevant areas

C
B

END (VEHICLE MALFUNCTION)
C

GO TO STEP 4

A

2.

CHECK DOOR LOCK OPERATION

(a) Check power door lock operation.

Click here

OK:

Power door lock operates normally.

NG

GO TO POWER DOOR LOCK CONTROL SYSTEM

OK

3.

CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS

(a) Check the wireless door lock control function

  • w/ Smart Key System:

    Click here

  • w/o Smart Key System:

    Click here

OK:

Wireless door lock function operates normally.

Result

Proceed to

OK

A

NG (w/ Smart Key System)

B

NG (w/o Smart Key System)

C
B

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM

C

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM

A

4.

INTERVIEW THE CUSTOMER

(a) If the phenomenon could not be confirmed or reproduced, after explaining this to the customer, also explain the history of input signals involving systems such as the multiplex network master switch assembly and electronic key (electrical key transmitter sub-assembly) for the relevant date/time in the operational history.

Click here

Result

Proceed to

Cause was identified

A

Cause could not be identified

B
A

END
B

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