Networking. Can Communication System (W/ Vsc) Yaw Rate Sensor Communication Stop Mode

Power Source Network. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

Networking. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PRECAUTION

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

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

CHECK HARNESS AND CONNECTOR (YAW RATE SENSOR ASSEMBLY - BATTERY AND BODY GROUND)

CAN COMMUNICATION SYSTEM (w/ VSC) - Yaw Rate Sensor Communication Stop Mode

DESCRIPTION

Detection Item	Symptom	Trouble Area
Yaw Rate Sensor Communication Stop Mode	Either condition is met: "Yaw Rate Sensor" is not displayed on the "Bus Check" screen. "Yaw Rate Sensor Communication Stop Mode" in "DTC Communication Table" applies.	Power source or inside of yaw rate sensor assembly Yaw rate sensor assembly CAN branch wire or connector Yaw rate sensor assembly

WIRING DIAGRAM

Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Yaw Rate Sensor Communication Stop Mode

INSPECTION PROCEDURE

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT:

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

1.PRECAUTION

NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (HILUX_TGN26 RM000004QR1006X.html).

NEXT

2.DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the CAN main wire and the CAN branch wire.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (HILUX_TGN26 RM000004QR3009X.html).

NEXT

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

Disconnect the K21 yaw rate sensor assembly connector.

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Switch Condition
Specified Condition
K21-3 (CANH) - K21-2 (CANL)
Ignition switch off
54 to 69 Ω
Text in Illustration
*a
Front view of wire harness connector
(to Yaw Rate Sensor Assembly)

REPAIR OR REPLACE YAW RATE SENSOR ASSEMBLY CAN BRANCH WIRE OR CONNECTOR (CANH, CANL)

OK

4.CHECK HARNESS AND CONNECTOR (YAW RATE SENSOR ASSEMBLY - BATTERY AND BODY GROUND)

Connect the cable to the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (HILUX_TGN26 RM000004QR3009X.html).

Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
Switch Condition
Specified Condition
K21-4 (IG) - Body ground
Ignition switch ON
11 to 14 V

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
K21-1 (GND) - Body ground
Always
Below 1 Ω

Text in Illustration
*a	Front view of wire harness connector (to Yaw Rate Sensor Assembly)

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE YAW RATE SENSOR ASSEMBLY (HILUX_TGN26 RM000000SS504TX.html)

Tester Connection	Switch Condition	Specified Condition
K21-3 (CANH) - K21-2 (CANL)	Ignition switch off	54 to 69 Ω

Tester Connection	Condition	Specified Condition
K21-1 (GND) - Body ground	Always	Below 1 Ω