Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu

Power Source Network. Yaris. Ncp93, 131
Networking. Yaris. Ncp93, 131

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

  1. JUNCTION CONNECTOR

  1. CHECK DLC3

  1. CHECK ECM

  1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU), INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (2 Connector Type)

  1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU), INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (1 Connector Type)

  1. CHECK COMBINATION METER ASSEMBLY

  1. CHECK SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (w/ ABS)

  1. CHECK AIRBAG SENSOR ASSEMBLY

  1. CHECK STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) (w/ VSC)

  1. CHECK POWER STEERING ECU ASSEMBLY

  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) -- Terminals Of Ecu


HINT:
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

  1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and branch wire.

    CAUTION:
    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
    NOTICE:
    1. Before measuring the resistance, leave the vehicle for at least 1 minute and do not operate the ignition switch, any switches or any doors. If doors need to be opened in order to check connectors, open the doors and leave them open.
    2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected (YARIS_NCP93 RM00000482M008X.html).

JUNCTION CONNECTOR


  1. NO. 1 JUNCTION CONNECTOR


    Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu


    Text in Illustration
    *a
    		to ECM
    		*b
    		to Skid Control ECU (Brake Actuator Assembly) (w/ ABS)
    *c
    		to Main Body ECU (Multiplex Network Body ECU)
    		*d
    		to Power Steering ECU Assembly
    *e
    		to DLC3
    		*f
    		to No. 2 Junction Connector

    Terminal No. (Symbol)
    		Wiring Color
    		Connect to
    A73-9 (CANH)
    		L
    		ECM
    A73-20 (CANL)
    		W
    A73-10 (CANH)
    		G
    		Skid Control ECU (Brake Actuator Assembly)*1
    A73-21 (CANL)
    		W
    D146-1 (CANH)
    		R
    		Main Body ECU (Multiplex Network Body ECU)
    D146-12 (CANL)
    		W
    D146-2 (CANH)
    		LG
    		Power Steering ECU Assembly
    D146-13 (CANL)
    		W
    D146-3 (CANH)
    		GR
    		DLC3
    D146-14 (CANL)
    		W
    D146-4 (CANH)
    		SB
    		No. 2 Junction Connector
    D146-15 (CANL)
    		W
    1. *1: w/ ABS


  2. NO. 2 JUNCTION CONNECTOR


    Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu


    Text in Illustration
    *a
    		to Steering Angle Sensor (Spiral Cable Sub-assembly)*1
    		*b
    		to Airbag Sensor Assembly
    *c
    		to Combination Meter Assembly
    		*d
    		to Air Conditioning Amplifier Assembly
    *e
    		to No. 1 Junction Connector
    		-
    		-

    Terminal No. (Symbol)
    		Wiring Color
    		Connect to
    D147-1 (CANH)
    		P
    		Steering Angle Sensor (Spiral Cable Sub-assembly)*1
    D147-12 (CANL)
    		W
    D147-4 (CANH)
    		B
    		Airbag Sensor Assembly
    D147-15 (CANL)
    		W
    D147-7 (CANH)
    		G
    		Combination Meter Assembly
    D147-18 (CANL)
    		W
    D147-8 (CANH)
    		V
    		Air Conditioning Amplifier Assembly
    D147-19 (CANL)
    		W
    D147-10 (CANH)
    		SB
    		No. 1 Junction Connector
    D147-21 (CANL)
    		W
    1. *1: w/ VSC

CHECK DLC3

Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu

  1. Turn the ignition switch off.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Switch Condition
    		Specified Condition
    D102-6 (CANH) - D102-14 (CANL)
    		GR - W
    		Ignition switch off
    		54 to 69 Ω
    D102-6 (CANH) - D102-16 (BAT)
    		GR - BE
    		Ignition switch off
    		6 kΩ or higher
    D102-14 (CANL) - D102-16 (BAT)
    		W - BE
    		Ignition switch off
    		6 kΩ or higher
    D102-6 (CANH) - D102-4 (CG)
    		GR - W-B
    		Ignition switch off
    		200 Ω or higher
    D102-14 (CANL) - D102-4 (CG)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher

CHECK ECM

Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu

  1. Disconnect the A72 and C51 ECM connectors.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Switch Condition
    		Specified Condition
    A72-13 (CANH) - A72-26 (CANL)
    		L - W
    		Ignition switch off
    		108 to 132 Ω
    A72-13 (CANH) - A72-2 (+B)
    		L - B
    		Ignition switch off
    		6 kΩ or higher
    A72-26 (CANL) - A72-2 (+B)
    		W - B
    		Ignition switch off
    		6 kΩ or higher
    A72-13 (CANH) - C51-16 (E1)
    		L - W-B
    		Ignition switch off
    		200 Ω or higher
    A72-26 (CANL) - C51-16 (E1)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU), INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (2 Connector Type)

Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu


Text in Illustration
*1
Instrument Panel Junction Block Assembly
*2
Main Body ECU (Multiplex Network Body ECU)

  1. Disconnect the D143 main body ECU (multiplex network body ECU) connector.

  2. Disconnect the 3B and 3C instrument panel junction block assembly connectors.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Switch Condition
    		Specified Condition
    D143-14 (CANH) - D143-13 (CANL)
    		R - W
    		Ignition switch off
    		54 to 69 Ω
    D143-14 (CANH) - 3C-21
    		R - L
    		Ignition switch off
    		6 kΩ or higher
    D143-13 (CANL) - 3C-21
    		W - L
    		Ignition switch off
    		6 kΩ or higher
    D143-14 (CANH) - 3B-8
    		R - W-B
    		Ignition switch off
    		200 Ω or higher
    D143-13 (CANL) - 3B-8
    		W - W-B
    		Ignition switch off
    		200 Ω or higher

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU), INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (1 Connector Type)

Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu


Text in Illustration
*1
Instrument Panel Junction Block Assembly
*2
Main Body ECU (Multiplex Network Body ECU)

  1. Disconnect the D143 main body ECU (multiplex network body ECU) connector.

  2. Disconnect the 3B and 3C instrument panel junction block assembly connectors.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Switch Condition
    		Specified Condition
    D143-14 (CANH) - D143-13 (CANL)
    		R - W
    		Ignition switch off
    		54 to 69 Ω
    D143-14 (CANH) - 3C-21
    		R - L
    		Ignition switch off
    		6 kΩ or higher
    D143-13 (CANL) - 3C-21
    		W - L
    		Ignition switch off
    		6 kΩ or higher
    D143-14 (CANH) - 3B-8
    		R - W-B
    		Ignition switch off
    		200 Ω or higher
    D143-13 (CANL) - 3B-8
    		W - W-B
    		Ignition switch off
    		200 Ω or higher

CHECK COMBINATION METER ASSEMBLY

Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu

  1. Disconnect the D100 combination meter assembly connector.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Switch Condition
    		Specified Condition
    D100-32 (CANH) - D100-31 (CANL)
    		G - W
    		Ignition switch off
    		108 to 132 Ω
    D100-32 (CANH) - D100-40 (B)
    		G - L
    		Ignition switch off
    		6 kΩ or higher
    D100-31 (CANL) - D100-40 (B)
    		W - L
    		Ignition switch off
    		6 kΩ or higher
    D100-32 (CANH) - D100-21 (ET)
    		G - W-B
    		Ignition switch off
    		200 Ω or higher
    D100-31 (CANL) - D100-21 (ET)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher

CHECK SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (w/ ABS)

Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu


Text in Illustration
*A
w/ VSC
*B
w/o VSC

  1. Disconnect the A70*1 or A71*2 skid control ECU (brake actuator assembly) connector.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Switch Condition
    		Specified Condition
    A70-25 (CANH) - A70-14 (CANL)*1
    A71-25 (CANH) - A71-14 (CANL)*2
    		G - W
    		Ignition switch off
    		54 to 69 Ω
    A70-25 (CANH) - A70-12 (+BS)*1
    A71-25 (CANH) - A71-12 (+BS)*2
    		G - W
    		Ignition switch off
    		6 kΩ or higher
    A70-14 (CANL) - A70-12 (+BS)*1
    A71-14 (CANL) - A71-12 (+BS)*2
    		W - W
    		Ignition switch off
    		6 kΩ or higher
    A70-25 (CANH) - A70-1 (GND1)*1
    A71-25 (CANH) - A71-1 (GND1)*2
    		G - W-B
    		Ignition switch off
    		200 Ω or higher
    A70-14 (CANL) - A70-1 (GND1)*1
    A71-14 (CANL) - A71-1 (GND1)*2
    		W - W-B
    		Ignition switch off
    		200 Ω or higher
    *1: w/ VSC
    *2: w/o VSC

CHECK AIRBAG SENSOR ASSEMBLY

Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu


Text in Illustration
*A
w/o VSC
*B
w/ VSC

  1. Disconnect the D112 airbag sensor assembly connector.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Switch Condition
    		Specified Condition
    D112-13 (CANH) - D112-22 (CANL)
    		B - W
    		Ignition switch off
    		54 to 69 Ω
    D112-13 (CANH) - D102-16 (BAT)
    		B - BE
    		Ignition switch off
    		6 kΩ or higher
    D112-22 (CANL) - D102-16 (BAT)
    		W - BE
    		Ignition switch off
    		6 kΩ or higher
    D112-13 (CANH) - D102-4 (CG)
    		B - W-B
    		Ignition switch off
    		200 Ω or higher
    D112-22 (CANL) - D102-4 (CG)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher

CHECK STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) (w/ VSC)

Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu

  1. Disconnect the D122 steering angle sensor (spiral cable sub-assembly) connector.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Switch Condition
    		Specified Condition
    D122-4 (CANH) - D122-3 (CANL)
    		P - W
    		Ignition switch off
    		54 to 69 Ω
    D122-4 (CANH) - D122-6 (BAT)
    		P - SB
    		Ignition switch off
    		6 kΩ or higher
    D122-3 (CANL) - D122-6 (BAT)
    		W - SB
    		Ignition switch off
    		6 kΩ or higher
    D122-4 (CANH) - D122-2 (ESS)
    		P - BR
    		Ignition switch off
    		200 Ω or higher
    D122-3 (CANL) - D122-2 (ESS)
    		W - BR
    		Ignition switch off
    		200 Ω or higher

CHECK POWER STEERING ECU ASSEMBLY

Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu

  1. Disconnect the A68 and D104 power steering ECU assembly connectors.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Switch Condition
    		Specified Condition
    D104-7 (CANH) - D104-8 (CANL)
    		LG - W
    		Ignition switch off
    		54 to 69 Ω
    D104-7 (CANH) - A68-1 (PIG)
    		LG - W
    		Ignition switch off
    		6 kΩ or higher
    D104-8 (CANL) - A68-1 (PIG)
    		W - W
    		Ignition switch off
    		6 kΩ or higher
    D104-7 (CANH) - A68-2 (PGND)
    		LG - W-B
    		Ignition switch off
    		200 Ω or higher
    D104-8 (CANL) - A68-2 (PGND)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher

CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback Except Separate Type Yaw Rate Sensor) Terminals Of Ecu

  1. Disconnect the D130 air conditioning amplifier assembly connector.

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

    Terminal No. (Symbol)
    		Wiring Color
    		Switch Condition
    		Specified Condition
    D130-8 (TX+) - D130-9 (TX-)
    		V - W
    		Ignition switch off
    		54 to 69 Ω
    D130-8 (TX+) - D102-16 (BAT)
    		V - BE
    		Ignition switch off
    		6 kΩ or higher
    D130-9 (TX-) - D102-16 (BAT)
    		W - BE
    		Ignition switch off
    		6 kΩ or higher
    D130-8 (TX+) - D130-23 (GND)
    		V - W-B
    		Ignition switch off
    		200 Ω or higher
    D130-9 (TX-) - D130-23 (GND)
    		W - W-B
    		Ignition switch off
    		200 Ω or higher