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Home >> Lexus >> 2007 >> RX 400h FWD >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (P310) - RX400H - DTC P0A78-266 Through P0A79-812 >> DTC P0A79-690 Drive Motor "B" Inverter Performance; DTC P0A79-691 Drive Motor "B" Inverter Performance >> Description

DTC P0A79-690 Drive Motor "B" Inverter Performance; DTC P0A79-691 Drive Motor "B" Inverter Performance: Description

Refer to the description of the inverter. (See DESCRIPTION )

If the motor inverter circuit is opened or shorted, or if the circuit overheats, the information is transmitted from the inverter to the RFIV terminal of the MG ECU via the rear motor inverter fail signal line. The MG ECU monitors the rear motor inverter fail signal line and detects a malfunction.

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No. INF Code DTC Detection Condition Trouble Area
P0A79 690 Open or GND short in rear motor inverter fail (RFIV) signal circuit w/ converter inverter assembly (MG ECU)
↑ 691 +B short in rear motor inverter fail (RFIV) signal circuit w/ converter inverter assembly (MG ECU)