Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - NETWORKING
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)
DTC U0125 Lost Communication with Yaw Rate Sensor Module
DTC U0124 Lost Communication with Lateral Acceleration Sensor Module
DESCRIPTION
| DTC Code | DTC Detection Condition | Trouble Area |
| U0125 | There is no communication from the yaw rate sensor assembly. | Power source circuit of yaw rate sensor assembly Yaw rate sensor assembly CAN branch wire or connector Yaw rate sensor assembly |
| U0124 | There is no communication from the yaw rate sensor assembly (lateral acceleration sensor). | Power source circuit of yaw rate sensor assembly Yaw rate sensor assembly CAN branch wire or connector Yaw rate sensor assembly |
For vehicles with a vehicle stability control system.
WIRING DIAGRAM
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 ().
| 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:
- For vehicles with an SRS system:
- 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 ().
| NEXT | |
| 3.CHECK FOR OPEN IN CAN BUS WIRE (YAW RATE SENSOR ASSEMBLY CAN BRANCH WIRE) |
Disconnect the E50 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 E50-3 (CANH) - E50-2 (CANL) Ignition switch off 54 to 69 Ω
| *a | Front view of wire harness connector (to Yaw Rate Sensor Assembly) |
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| 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 ().
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Switch Condition Specified Condition E50-4 (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 E50-1 (GND) - Body ground Always Below 1 Ω
| *a | Front view of wire harness connector (to Yaw Rate Sensor Assembly) |
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| OK | ||
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