Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2022 Toyota GR86 Base, Automatic TransFACTORY OEM SERVICE PROCEDURE
Can Communication System
CAN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| B1730 | Central Gateway Control Module Ignition / Accessory Power |
| B1731 | Central Gateway Control Module CAN Register Stuck |
| B1732 | Central Gateway Control Module Non-volatile Memory |
| B1E00 | Registration Fault Of Authentication Unit |
| B1E01 | Unregistered Of Authentication Unit |
| C1E00 | Registration Fault Of Authentication Unit |
| P1E00 | Registration Fault of Authentication Unit |
| U1C00 | Invalid Authentication Data Received From Gateway |
| U1C07 | Invalid Authentication Data Received From ECM/PCM PU-Bus |
| U1C08 | Invalid Authentication Data Received From VDC PU-Bus |
| U1C0C | Invalid Authentication Data Received From Eyesight PU-Bus |
| U1C0F | Invalid Authentication Data Received From Steering Angle Sensor Module CH-Bus |
| U1C10 | Invalid Authentication Data Received From TCM PU-Bus |
| U1D00 | Continuingly Invalid Authentication Data Received From Gateway |
| U1D07 | Continuingly Invalid Authentication Data Received From ECM/PCM PU-Bus |
| U1D08 | Continuingly Invalid Authentication Data Received From VDC PU-Bus |
| U1D10 | Continuingly Invalid Authentication Data Received From TCM PU-Bus |
| U1E00 | Lost Communication of Authentication Data With Gateway "A" PU-Bus |
| U1E07 | Lost Communication of Authentication Data With ECM/PCM PU-Bus |
| U1E08 | Lost Communication of Authentication Data With VDC PU-Bus |
| U1E10 | Lost Communication of Authentication Data With TCM PU-Bus |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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