Can Communication System (For Hatchback With Separate Type Yaw Rate Sensor) Yaw Rate Sensor Communication Stop Mode

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR OPEN IN CAN BUS WIRE (YAW RATE SENSOR BRANCH WIRE)

CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

CAN COMMUNICATION SYSTEM (for Hatchback with Separate Type Yaw Rate Sensor) - Yaw Rate Sensor Communication Stop Mode


DESCRIPTION


Detection Item
Symptom
Trouble Area
Yaw Rate Sensor Communication Stop Mode
Either condition is met:
  1. "Yaw Rate / Deceleration Sensor" is not displayed on "Bus Check".
  2. "Yaw Rate Sensor Communication Stop Mode" in "DTC combination table" applies.
  1. Power source or inside yaw rate sensor
  2. Yaw rate sensor branch wire or connector
  3. Yaw rate sensor

WIRING DIAGRAM


Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback With Separate Type Yaw Rate Sensor) Yaw Rate Sensor Communication Stop Mode


INSPECTION PROCEDURE

NOTICE:
  1. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
  2. Turn the ignition switch off before measuring the resistances of the CAN main wire and the CAN branch wire.
  3. After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.
  4. Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If doors need to be opened in order to check connectors, open the doors and leave them open.
HINT:
  1. Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
1.CHECK FOR OPEN IN CAN BUS WIRE (YAW RATE SENSOR BRANCH WIRE)
Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback With Separate Type Yaw Rate Sensor) Yaw Rate Sensor Communication Stop Mode

  1. Disconnect the D153 yaw rate sensor connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    D153-3 (CANH) - D153-2 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Yaw Rate Sensor)


NG
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (YAW RATE SENSOR BRANCH WIRE)
OK


2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)


    Yaris. Ncp93, 131.Networking.Can Communication System (For Sedan).Can Communication System (For Hatchback With Separate Type Yaw Rate Sensor) Yaw Rate Sensor Communication Stop Mode

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    D153-4 (IG) - Body ground
    		Ignition switch ON
    		11 to 14 V

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    D153-1 (GND) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Yaw Rate Sensor)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
OK

REPLACE YAW RATE SENSOR (YARIS_NCP93 RM000002RGR00FX.html)