Toyota CH-R Service Manual: AUTO Power Retract Mirrors do not operate

Toyota CH-R Service Manual / Mirror (ext) / Power Mirror Control System / AUTO Power Retract Mirrors do not operate

DESCRIPTION

The outer mirror switch assembly sends a mirror auto retract/return signal to the main body ECU (multiplex network body ECU) when the retractable outer mirror switch on the outer mirror switch assembly is in the AUTO position. The main body ECU (multiplex network body ECU) retracts or returns the outer rear view mirror assemblies based on the lock/unlock signal of each door while the ignition switch is off.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.*1

    Click here

    • *1: w/ Smart Key System

PROCEDURE

1.

CHECK POWER RETRACT MIRROR FUNCTION

(a) Check the power retract mirror function.

Click here

OK:

Power retract mirror function operates normally.

NG

GO TO OTHER DIAGNOSIS PROCEDURE (Power Retractable Mirrors do not Operate with Power Retract Mirror Switch)

OK

2.

CHECK POWER DOOR LOCK CONTROL SYSTEM

(a) Check the power door lock control system.

Click here

OK:

Power door lock control system is normal.

NG

GO TO POWER DOOR LOCK CONTROL SYSTEM

OK

3.

CHECK WIRELESS DOOR LOCK CONTROL SYSTEM

(a) w/ Smart Key System

(1) Check the wireless door lock control system.

Click here

(b) w/o Smart Key System

(1) Check the wireless door lock control system.

Click here

OK:

Wireless door lock control system is normal.

Result

Proceed to

OK (w/ Smart Key System)

A

OK (w/o Smart Key System)

B

NG (w/ Smart Key System)

C

NG (w/o Smart Key System)

D

B

GO TO STEP 5

C

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM

D

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM

A

4.

CHECK SMART KEY SYSTEM (for Entry Function)

(a) Check the smart key system (for Entry Function).

Click here

OK:

Smart key system (for Entry Function) is normal.

NG

GO TO SMART KEY SYSTEM (for Entry Function)

OK

5.

READ VALUE 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 / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Main Body > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Auto Mirror SW

Retractable outer mirror switch signal

OFF or ON

OFF: Mirror retract switch not in auto position

ON: Mirror retract switch in auto position

-

Body Electrical > Main Body > Data List

Tester Display

Auto Mirror SW

OK:

On the Techstream screen, ON or OFF is displayed accordingly.

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

6.

INSPECT OUTER MIRROR SWITCH ASSEMBLY

(a) Remove the outer mirror switch assembly.

Click here

(b) Inspect the outer mirror switch assembly.

Click here

NG

REPLACE OUTER MIRROR SWITCH ASSEMBLY

OK

7.

CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

(a) Disconnect the J10 outer mirror switch assembly.

(b) Disconnect the F16 main body ECU (multiplex network body ECU).

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

J10-4 (MAT) - F16-15 (RTR)

Always

Below 1 Ω

J10-4 (MAT) or F16-15 (RTR) - Body ground

Always

10 kΩ or higher

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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