Toyota CH-R Service Manual: Power Retractable Mirrors do not Operate with Power Retract Mirror Switch

Toyota CH-R Service Manual / Mirror (ext) / Power Mirror Control System / Power Retractable Mirrors do not Operate with Power Retract Mirror Switch

DESCRIPTION

The outer mirror switch assembly sends a mirror 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 operated. The main body ECU (multiplex network body ECU) retracts or returns the outer rear view mirror assemblies based on the signal.

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.

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

Outer Mirror Fold SW

Retractable outer mirror switch signal

OFF or ON

OFF: Retractable outer mirror switch off

ON: Retractable outer mirror switch on

-

Body Electrical > Main Body > Data List

Tester Display

Outer Mirror Fold SW

OK:

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

NG

GO TO STEP 11

OK

2.

CHECK MALFUNCTIONING PARTS

(a) Check the malfunctioning parts.

Result

Proceed to

Both outer rear view mirror assemblies are malfunctioning

A

Outer rear view mirror assembly LH is malfunctioning

B

Outer rear view mirror assembly RH is malfunctioning

C

B

GO TO STEP 7

C

GO TO STEP 9

A

3.

INSPECT MIRROR(+) / MIRROR(-) RELAY

(a) Remove the MIRROR(+) relay from the No. 4 relay block assembly.

(b) Inspect the MIRROR(-) relay.

Click here

(c) Remove the MIRROR(-) relay from the No. 4 relay block assembly.

(d) Inspect the MIRROR(+) relay.

Click here

Result

Proceed to

OK

A

NG (MIRROR(+) Relay)

B

NG (MIRROR(-) Relay)

C

B

REPLACE MIRROR(+) RELAY

C

REPLACE MIRROR(-) RELAY

A

4.

CHECK HARNESS AND CONNECTOR (MIRROR(+) / MIRROR(-) RELAY POWER SOURCE)

(a) Remove the MIRROR(+) relay from the No. 4 relay block assembly.

*1

No. 4 Relay Block Assembly

*a

MIRROR(+) Relay terminals

*b

MIRROR(-) Relay terminals

(b) Remove the MIRROR(-) relay from the No. 4 relay block assembly.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

No. 4 relay block assembly MIRROR(+) relay terminal 1 - Body ground

Always

11 to 14 V

No. 4 relay block assembly MIRROR(-) relay terminal 1 - Body ground

Always

11 to 14 V

No. 4 relay block assembly MIRROR(+) relay terminal 5 - Body ground

Always

11 to 14 V

No. 4 relay block assembly MIRROR(-) relay terminal 5 - Body ground

Always

11 to 14 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

No. 4 relay block assembly MIRROR(+) relay terminal 4 - Body ground

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(-) relay terminal 4 - Body ground

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(+) relay terminal 4 - No. 4 relay block assembly MIRROR(-) relay terminal 4

Always

Below 1 Ω

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - MIRROR(+) / MIRROR(-) RELAY)

(a) Remove the MIRROR(+) relay from the No. 4 relay block assembly.

*1

No. 4 Relay Block Assembly

*a

MIRROR(+) Relay terminals

*b

MIRROR(-) Relay terminals

(b) Remove the MIRROR(-) relay from the No. 4 relay block assembly.

(c) Disconnect the F16 main body ECU (multiplex network body ECU) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

No. 4 relay block assembly MIRROR(-) relay terminal 2 - F16-19 (RETR)

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(+) relay terminal 2 - F16-20 (RTRR)

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(-) relay terminal 2 or F16-19 (RETR) - Body Ground

Always

10 kΩ or higher

No. 4 relay block assembly MIRROR(+) relay terminal 2 or F16-20 (RTRR) - Body Ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

6.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH/RH - MIRROR(+) / MIRROR(-) RELAY)

(a) Remove the MIRROR(+) relay from the No. 4 relay block assembly.

*1

No. 4 Relay Block Assembly

*a

MIRROR(+) Relay terminals

*b

MIRROR(-) Relay terminals

(b) Remove the MIRROR(-) relay from the No. 4 relay block assembly.

(c) Disconnect the J7 outer rear view mirror assembly LH connector.

(d) Disconnect the I8 outer rear view mirror assembly RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

No. 4 relay block assembly MIRROR(-) relay terminal 3 - I8-5 (MR)

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(-) relay terminal 3 - J7-5 (MR)

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(+) relay terminal 3 - I8-6 (MF)

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(+) relay terminal 3 - J7-6 (MF)

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(-) relay terminal 3 or I8-5 (MR) - Body Ground

Always

10 kΩ or higher

No. 4 relay block assembly MIRROR(-) relay terminal 3 or J7-5 (MR) - Body Ground

Always

10 kΩ or higher

No. 4 relay block assembly MIRROR(+) relay terminal 3 or I8-6 (MF) - Body Ground

Always

10 kΩ or higher

No. 4 relay block assembly MIRROR(+) relay terminal 3 or J7-6 (MF) - Body Ground

Always

10 kΩ or higher

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

(a) Remove the outer rear view mirror assembly LH.

Click here

(b) Inspect the outer rear view mirror assembly LH.

Click here

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

OK

8.

CHECK HARNESS AND CONNECTOR (MIRROR(+) / MIRROR(-) RELAY - OUTER REAR VIEW MIRROR ASSEMBLY LH)

(a) Remove the MIRROR(+) relay from the No. 4 relay block assembly.

*1

No. 4 Relay Block Assembly

*a

MIRROR(-) Relay terminals

*b

MIRROR(+) Relay terminals

(b) Remove the MIRROR(-) relay from the No. 4 relay block assembly.

(c) Disconnect the J7 outer rear view mirror assembly LH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

No. 4 relay block assembly MIRROR(-) relay terminal 3 - J7-5 (MR)

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(+) relay terminal 3 - J7-6 (MF)

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(-) relay terminal 3 or J7-5 (MR) - Body Ground

Always

10 kΩ or higher

No. 4 relay block assembly MIRROR(+) relay terminal 3 or J7-6 (MF) - Body Ground

Always

10 kΩ or higher

OK

USE SIMULATION METHOD TO CHECK

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.

INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

(a) Remove the outer rear view mirror assembly RH.

Click here

(b) Inspect the outer rear view mirror assembly RH.

Click here

NG

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

OK

10.

CHECK HARNESS AND CONNECTOR (MIRROR(+) / MIRROR(-) RELAY - OUTER REAR VIEW MIRROR ASSEMBLY RH)

(a) Remove the MIRROR(+) relay from the No. 4 relay block assembly.

*1

No. 4 Relay Block Assembly

*a

MIRROR(-) Relay terminals

*b

MIRROR(+) Relay terminals

(b) Remove the MIRROR(-) relay from the No. 4 relay block assembly.

(c) Disconnect the I8 outer rear view mirror assembly RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

No. 4 relay block assembly MIRROR(-) relay terminal 3 - I8-5 (MR)

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(+) relay terminal 3 - I8-6 (MF)

Always

Below 1 Ω

No. 4 relay block assembly MIRROR(-) relay terminal 3 or I8-5 (MR) - Body Ground

Always

10 kΩ or higher

No. 4 relay block assembly MIRROR(+) relay terminal 3 or I8-6 (MF) - Body Ground

Always

10 kΩ or higher

OK

USE SIMULATION METHOD TO CHECK

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.

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

12.

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

J10-2 (MR) - F16-14 (RET)

Always

Below 1 Ω

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

Always

Below 1 Ω

J10-2 (MR) or F16-14 (RET) - Body ground

Always

10 kΩ or higher

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

Always

10 kΩ or higher

J10-5 (E) - Body ground

Always

Below 1 Ω

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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