Circuit Description

The HV ECU checks the ST signal and detects malfunction. If the ST signal has +B short, the ST will always be ON. Therefore, even with the IG ON when starting the THS, the system will start. To prevent this from happening, the HV ECU detects the malfunction of the ST signal. DTC P3100 - Information code 142

INF. Code.

Detecting Condition

Trouble Area


When ST signal of HV ECU is ON, with ignition switch turned OFF.

• Ignition switch

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