Toyota CH-R Service Manual: Terminals Of Ecu

TERMINALS OF ECU

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Disconnect the F1 certification ECU (smart key ECU assembly) connector.

(b) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)

Input/Output

Wiring Color

Terminal Description

Condition

Specified Condition

Related Data List Item

F1-18 (E) - Body ground

-

W-B - Body ground

Ground

Always

Below 1 Ω

-

F1-4 (+B) - F1-18 (E)

Input

L - W-B

Power supply

Always

11 to 14 V

-

F1-15 (CUTB) - F1-18 (E)

Input

SB - W-B

Dark current cut pin*

Always

11 to 14 V

-

  • *: In order to prevent the vehicle battery from being depleted when the vehicle is shipped long distances, a fuse that cuts unnecessary electrical load while the vehicle is being shipped is installed in the circuit. If the fuse is removed, the circuit becomes open. If the fuse that is between the vehicle battery and terminal CUTB is removed and the circuit is open, the certification ECU (smart key ECU assembly) changes to a certain control mode (example: the transmission of radio waves every 0.25 seconds, which form the detection area, stops).

(c) Reconnect the F1 certification ECU (smart key ECU assembly) connector.

(d) Measure the voltage and check for pulses according to the value(s) in the table below.

Tester Connection

Input/Output

Wiring Color

Terminal Description

Condition

Specified Condition

Related Data List Item

F1-17 (IG1D) - F1-18 (E)

Output

GR - W-B

IG power supply

Engine switch off → on (IG)

Below 1 V → 10 V or higher

-

M67-17 (CLG1) - F1-18 (E)

Output

G - W-B

Output to driver door electrical key antenna

(request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area)

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought inside detection area*1)

Pulse generation

(See waveform 1)

Overhead + Driver Side (key diagnostic mode)

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought outside detection area*1)

Pulse generation

(See waveform 2)

M67-17 (CLG1) - F1-18 (E)

Input

G - W-B

Input to driver door lock sensor

(front door outside handle assembly LH lock sensor on signal is sent to the certification ECU (smart key ECU assembly))

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside vehicle
  3. All doors closed
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought outside detection area*1)

  5. Driver door lock sensor touched

Pulse generation

(See waveform 3)

D-Door Trigger Switch

M67-17 (CLG1) - F1-18 (E)

Input

G - W-B

Input to driver door unlock sensor

(when system is in unlock standby mode and unlock sensor is touched, door electrical key antenna sends unlock sensor input signal (sensing) to certification ECU (smart key ECU assembly))

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside vehicle
  3. All doors locked
  4. Electrical key transmitter sub-assembly not near the vehicle
  5. Driver door unlock sensor touched

Pulse generation

(See waveform 4)

D-Door Touch Sensor

M67-16 (CG1B) - F1-18 (E)

Output

R - W-B

Output to driver door electrical key antenna (terminal on opposite side of component from CLG1 output terminal)

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought inside detection area*1)

Pulse generation

(See waveform 5)

Overhead + Driver Side (key diagnostic mode)

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought outside detection area*1)

Pulse generation

(See waveform 6)

M67-15 (CLG2) - F1-18 (E)

Output

G - W-B*2

P - W-B*3

Output to front passenger door electrical key antenna

(request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area)

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought inside detection area*1)

Pulse generation

(See waveform 1)

Overhead + Passenger Side (key diagnostic mode)

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought outside detection area*1)

Pulse generation

(See waveform 2)

M67-15 (CLG2) - F1-18 (E)

Input

G - W-B*2

P - W-B*3

Input to front passenger door lock sensor

(front door outside handle assembly RH lock sensor on signal is sent to the certification ECU (smart key ECU assembly))

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside vehicle
  3. All doors closed
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought outside detection area*1)

  5. Front passenger door lock sensor touched

Pulse generation

(See waveform 3)

P-Door Trigger Switch

M67-15 (CLG2) - F1-18 (E)

Input

G - W-B*2

P - W-B*3

Input to front passenger door unlock sensor

(when system is in unlock standby mode and unlock sensor is touched, door electrical key antenna sends unlock sensor input signal (sensing) to certification ECU (smart key ECU assembly))

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside vehicle
  3. All doors locked
  4. Electrical key transmitter sub-assembly not near the vehicle
  5. Front passenger door unlock sensor touched

Pulse generation

(See waveform 4)

P-Door Touch Sensor

M67-14 (CG2B) - F1-18 (E)

Output

R - W-B

Output to front passenger door electrical key antenna (terminal on opposite side of component from CLG2 output terminal)

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought inside detection area*1)

Pulse generation

(See waveform 5)

Overhead + Passenger Side (key diagnostic mode)

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought outside detection area*1)

Pulse generation

(See waveform 6)

F1-8 (CLG5) - F1-18 (E)

Output

SB - W-B

Output to No. 1 indoor electrical key antenna assembly (front floor)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

Pulse generation

(See waveform 7)

Overhead + Front Room (key diagnostic mode)

F1-9 (CG5B) - F1-18 (E)

Output

R - W-B

Output to No. 1 indoor electrical key antenna assembly (front floor) (terminal on opposite side of component from CLG5 output terminal)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

Pulse generation

(See waveform 7)

Overhead + Front Room (key diagnostic mode)

M67-11 (CLG7) - F1-18 (E)

Output

B - W-B

Output to No. 3 indoor electrical key antenna assembly (inside luggage compartment)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

Pulse generation

(See waveform 7)

Overhead + Back Door (inside) (key diagnostic mode)

M67-10 (CG7B) - F1-18 (E)

Output

W - W-B

Output to No. 3 indoor electrical key antenna assembly (inside luggage compartment) (terminal on opposite side of component from CLG7 output terminal)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

Pulse generation

(See waveform 7)

Overhead + Back Door (inside) (key diagnostic mode)

M67-13 (CLG8) - F1-18 (E)

Output

Y - W-B

Output to electrical key antenna (outside luggage compartment)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside vehicle
  3. All doors closed
  4. Back door opener switch assembly off → on

Pulse generation

(See waveform 8)

Overhead + Back Door (key diagnostic mode)

M67-12 (CG8B) - F1-18 (E)

Output

W - W-B

Output to electrical key antenna (outside luggage compartment) (terminal on opposite side of component from CLG8 output terminal)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside vehicle
  3. All doors closed
  4. Back door opener switch assembly off → on

Pulse generation

(See waveform 8)

Overhead + Back Door (key diagnostic mode)

M67-26 (TSW5) - F1-18 (E)

Input

LG - W-B

Back door opener switch assembly (open switch) signal input

Back door opener switch assembly (open switch) off → on

Pulse generation

(See waveform 9)

Tr/B-Door Unlock SW

M67-27 (TSW6) - F1-18 (E)

Input

GR - W-B

Back door opener switch assembly (lock switch) signal input

Back door opener switch assembly (lock switch) off → on

Pulse generation

(See waveform 9)

Tr/B-Door Lock SW

M67-18 (RCO) - F1-18 (E)

Output

LG - W-B

Output to electrical key and TPMS receiver assembly

(Power supply for electrical key and TPMS receiver assembly. Certification ECU (smart key ECU assembly) outputs 5 V when receiver starts operating.)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside detection area but kept inside wireless function operational area
  3. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed

Pulse generation

(See waveform 10)

-

M67-19 (RDAM) - F1-18 (E)

Input

GR - W-B

Electrical key and TPMS receiver assembly verifies data received from electrical key transmitter sub-assembly.

Electrical key and TPMS receiver assembly sends data from electrical key transmitter sub-assembly to certification ECU (smart key ECU assembly) (Electrical key and TPMS receiver assembly intermittently grounds 12 V signal from certification ECU (smart key ECU assembly)).

Proceed:

  1. Engine switch off
  2. All doors locked
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. Electrical key transmitter sub-assembly brought outside detection area but kept inside wireless function operational area
  5. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed

Pulse generation

(See waveform 11)

-

M67-20 (CSEL) - F1-18 (E)

Output

V - W-B

Communication channel switching circuit

Procedure:

  1. Engine switch off
  2. All doors closed

Below 1 V → pulse generation

-

  • *1: For details about the entry function detection area, refer to Operation Check.

    Click here

  • *2: for TMMT Made
  • *3: for TMC Made

(e) Using an oscilloscope, check waveform 1.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

Waveform 1 (Reference)

Item

Content

Tester Connection

M67-17 (CLG1) - F1-18 (E)

M67-15 (CLG2) - F1-18 (E)

Tool Setting

5 V/DIV., 500 ms/DIV.

Condition

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought inside detection area*)

  • *: For details about the entry function detection area, refer to Operation Check.

    Click here

(f) Using an oscilloscope, check waveform 2.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

Waveform 2 (Reference)

Item

Content

Tester Connection

M67-17 (CLG1) - F1-18 (E)

M67-15 (CLG2) - F1-18 (E)

Tool Setting

5 V/DIV., 100 ms/DIV.

Condition

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought outside detection area*)

  • *: For details about the entry function detection area, refer to Operation Check.

    Click here

(g) Using an oscilloscope, check waveform 3.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

*a

Lock sensor not touched

*b

Lock sensor touched

Waveform 3 (Reference)

Item

Content

Tester Connection

M67-17 (CLG1) - F1-18 (E)

M67-15 (CLG2) - F1-18 (E)

Tool Setting

5 V/DIV., 40 ms/DIV.

Condition

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside vehicle
  3. All doors closed
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought outside detection area*)

  5. Lock sensor not touched → touched
  • *: For details about the entry function detection area, refer to Operation Check.

    Click here

(h) Using an oscilloscope, check waveform 4.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

*a

Unlock sensor not touched

*b

Unlock sensor touched

Waveform 4 (Reference)

Item

Content

Tester Connection

M67-17 (CLG1) - F1-18 (E)

M67-15 (CLG2) - F1-18 (E)

Tool Setting

5 V/DIV., 50 ms/DIV.

Condition

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside vehicle
  3. All doors locked
  4. Electrical key transmitter sub-assembly not near the vehicle
  5. Unlock sensor not touched → touched

(i) Using an oscilloscope, check waveform 5.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

Waveform 5 (Reference)

Item

Content

Tester Connection

M67-16 (CG1B) - F1-18 (E)

M67-14 (CG2B) - F1-18 (E)

Tool Setting

5 V/DIV., 500 ms/DIV.

Condition

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought inside detection area*)

  • *: For details about the entry function detection area, refer to Operation Check.

    Click here

(j) Using an oscilloscope, check waveform 6.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

Waveform 6 (Reference)

Item

Content

Tester Connection

M67-16 (CG1B) - F1-18 (E)

M67-14 (CG2B) - F1-18 (E)

Tool Setting

5 V/DIV., 100 ms/DIV.

Condition

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. All doors locked through wireless operation

    (electrical key transmitter sub-assembly brought outside detection area*)

  • *: For details about the entry function detection area, refer to Operation Check.

    Click here

(k) Using an oscilloscope, check waveform 7.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

*a

For 30 seconds after any door closed

*b

After 30 seconds or more have elapsed since any door closed

Waveform 7 (Reference)

Item

Content

Tester Connection

F1-8 (CLG5) - F1-18 (E)

F1-9 (CG5B) - F1-18 (E)

M67-11 (CLG7) - F1-18 (E)

M67-10 (CG7B) - F1-18 (E)

Tool Setting

2 V/DIV., 500 ms/DIV.

Condition

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

(l) Using an oscilloscope, check waveform 8.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

Waveform 8 (Reference)

Item

Content

Tester Connection

M67-13 (CLG8) - F1-18 (E)

M67-12 (CG8B) - F1-18 (E)

Tool Setting

2 V/DIV., 500 ms/DIV.

Condition

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside vehicle
  3. All doors closed
  4. Back door opener switch assembly off → on

(m) Using an oscilloscope, check waveform 9.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

*a

Checking for switch on signal at short intervals

Waveform 9 (Reference)

Item

Content

Tester Connection

M67-26 (TSW5) - F1-18 (E)

Tool Setting

2 V/DIV., 500 ms/DIV.

Condition

Back door opener switch assembly (open switch) off → on

Waveform 9 (Reference)

Item

Content

Tester Connection

M67-27 (TSW6) - F1-18 (E)

Tool Setting

2 V/DIV., 500 ms/DIV.

Condition

Back door opener switch assembly (lock switch) off → on

(n) Using an oscilloscope, check waveform 10.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

*a

Before lock or unlock switch of electrical key transmitter sub-assembly pressed

*b

After lock or unlock switch of electrical key transmitter sub-assembly pressed

Waveform 10 (Reference)

Item

Content

Tester Connection

M67-18 (RCO) - F1-18 (E)

Tool Setting

2 V/DIV., 500 ms/DIV.

Condition

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly brought outside detection area but kept inside wireless function operational area
  3. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed

(o) Using an oscilloscope, check waveform 11.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

*a

Before lock or unlock switch of electrical key transmitter sub-assembly pressed

*b

After lock or unlock switch of electrical key transmitter sub-assembly pressed

Waveform 11 (Reference)

Item

Content

Tester Connection

M67-19 (RDAM) - F1-18 (E)

Tool Setting

5 V/DIV., 500 ms/DIV.

Condition

Procedure:

  1. Engine switch off
  2. All doors locked
  3. Electrical key transmitter sub-assembly not inside vehicle
  4. Electrical key transmitter sub-assembly brought outside detection area but kept inside wireless function operational area
  5. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed

*A

Main Body ECU (Multiplex Network Body ECU) with 2 Connectors

-

-

*1

Main Body ECU (Multiplex Network Body ECU)

-

-

*a

2 Connectors

-

-

*A

Main Body ECU (Multiplex Network Body ECU) with 1 Connector

-

-

*1

Main Body ECU (Multiplex Network Body ECU)

-

-

*a

1 Connector

-

-

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

Click here

(b) Reconnect the instrument panel junction block assembly connectors.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)

Input/Output

Wiring Color

Terminal Description

Condition

Specified Condition

Related Data List Item

MB-11 (GND1) - Body ground

-

-

Ground

Always

Below 1 Ω

-

MB-31 (BECU) - Body ground

Input

-

Battery power supply (for CPU)

Always

11 to 14 V

-

F15-6 (FLCY) - Body ground

Input

R - Body ground

Front door courtesy light switch assembly LH input

Front door LH closed

10 kΩ or higher

FL Door Courtesy SW

Front door LH open

Below 1 Ω

F15-27 (FRCY) - Body ground

Input

BR - Body ground

Front door courtesy light switch assembly RH input

Front door RH closed

10 kΩ or higher

FR Door Courtesy SW

Front door RH open

Below 1 Ω

MB-13 (LCTY) - Body ground

Input

-

Rear door courtesy light switch assembly LH input

Rear door LH closed

10 kΩ or higher

RL Door Courtesy SW

Rear door LH open

Below 1 Ω

MB-2 (RCTY) - Body ground

Input

-

Rear door courtesy light switch assembly RH input

Rear door RH closed

10 kΩ or higher

RR Door Courtesy SW

Rear door RH open

Below 1 Ω

MB-4 (BCTY) - Body ground

Input

-

Back door courtesy light switch input

Back door closed

10 kΩ or higher

Back Door Courtesy SW

Back door open

Below 1 Ω

(d) Install the main body ECU (multiplex network body ECU) to instrument panel junction block assembly.

Click here

(e) Measure the voltage and check for pulses according to the value(s) in the table below.

Tester Connection

Input/Output

Wiring Color

Terminal Description

Condition

Specified Condition

Related Data List Item

3D-13 (LSFL) - Body ground

Input

B - Body ground

Front door LH unlock detection switch input

Front door LH locked → unlocked

Pulse generation

(See waveform 1)

FL Door Lock Pos

3D-12 (LSFR) - Body ground

Input

GR - Body ground

Front door RH unlock detection switch input

Front door RH locked → unlocked

Pulse generation

(See waveform 1)

FR Door Lock Pos

3D-14 (LSR) - Body ground

Input

LG - Body ground

Rear door LH and Rear door RH unlock detection switch input

Rear door LH and Rear door RH locked → Rear door LH or Rear door RH unlocked

Pulse generation

(See waveform 1)

RL-Door Lock Pos SW

RR-Door Lock Pos SW

F15-6 (FLCY) - Body ground

Input

R - Body ground

Front door LH courtesy light switch input

Front door LH closed → open

Pulse generation

(See waveform 2)

FL Door Courtesy SW

F15-27 (FRCY) - Body ground

Input

BR - Body ground

Front door RH courtesy light switch input

Front door RH closed → open

Pulse generation

(See waveform 2)

FR Door Courtesy SW

3H-24 (LCTY) - Body ground

Input

BR - Body ground

Rear door LH courtesy light switch input

Rear door LH closed → open

Pulse generation

(See waveform 2)

RL Door Courtesy SW

3A-31 (RCTY) - Body ground

Input

BR - Body ground

Rear door RH courtesy light switch input

Rear door RH closed → open

Pulse generation

(See waveform 2)

RR Door Courtesy SW

3H-34 (BCTY) - Body ground

Input

SB - Body ground

Back door courtesy light switch input

Back door closed → opened

Pulse generation

(See waveform 2)

Back Door Courtesy SW

3F-29 (BZR) - Body ground

Output

L - Body ground

Wireless buzzer signal output

Procedure:

  1. Engine switch off
  2. All doors closed
  3. Lock switch of electrical key transmitter sub-assembly not pressed → pressed

Below 1 V → pulse generation

-

(f) Using an oscilloscope, check waveform 1.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

Waveform 1 (Reference)

Item

Content

Tester Connection

3D-13 (LSFL) - Body ground

3D-12 (LSFR) - Body ground

3D-14 (LSR) - Body ground

Tool Setting

2 V/DIV., 200 ms/DIV.

Condition

Door locked → unlocked

*a

Door locked

*b

Door unlocked

(g) Using an oscilloscope, check waveform 2.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

Waveform 2 (Reference)

Item

Content

Tester Connection

F15-6 (FLCY) - Body ground

F15-27 (FRCY) - Body ground

3H-24 (LCTY) - Body ground

3A-31 (RCTY) - Body ground

3H-34 (BCTY) - Body ground

Tool Setting

2 V/DIV., 200 ms/DIV.

Condition

Door closed → opened

*a

Door closed

*b

Door open

    Problem Symptoms Table
    PROBLEM SYMPTOMS TABLE HINT: If a problem occurs in certain locations or at certain times of day, check for the possibility of wave interference. When the electrical key transmitter ...

    Diagnosis System
    DIAGNOSIS SYSTEM DESCRIPTION (a) Smart key system (for Entry Function) data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfu ...

    Other materials:

    Toyota CH-R Service Manual > Key Reminder Warning System: Data List / Active Test
    DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may ...

    Toyota CH-R Service Manual > Vehicle Stability Control System: Brake Pedal Load Sensing Switch OFF Stuck Malfunction (C1430,C1431)
    DESCRIPTION The brake pedal load sensing switch turns on when the brake pedal is depressed with a force exceeding a predetermined level. The skid control ECU uses this circuit to detect if the brake pedal is depressed or not. DTC No. Detection Item DTC Detecti ...

    © 2017-2019 Copyright www.tochr.net
    0.02