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| Trouble symptom | Inspection procedure number | Reference page |
| Abnormality in OSS-ECU power supply and ground circuit | 1 |  |
| Vehicle power does not turn ON (not possible with both of power supply mode ACC and ON) | 2 | |
| Vehicle power does not turn ON (Not possible with power supply mode ACC only) | 3 | |
| Vehicle power does not turn ON (Not possible with power supply mode ON only) | 4 | |
| Plug-in Hybrid EV System does not start. | 5 | |