HYBRID CONTROL SYSTEM, Diagnostic DTC:P0AF4-673 and P0AF5-674

DTC Code DTC Name
P0AF4-673 Sensor of Rear Motor Inverter Temperature (Open / GND Short)
P0AF5-674 Sensor of Rear Motor Inverter Temperature (Circulate of Power Supply)

DESCRIPTION

The MG ECU, which is built into in the inverter with converter assembly, detects the temperature of the rear motor inverter using a temperature sensor built into the inverter with converter assembly. The inverter cooling system operates independently of the engine cooling system. The MG ECU uses signals from the rear motor inverter temperature sensor to check the effectiveness of the inverter cooling system. If necessary, the MG ECU will limit inverter output to help prevent the inverter from overheating. The MG ECU also detects malfunctions in the rear motor inverter temperature sensor and its wiring.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0AF4-673

Sensor of Rear Motor Inverter Temperature (Open / GND Short)

Short to ground in the rear motor inverter temperature sensor circuit

(1 trip detection logic)

Inverter with converter assembly

Comes on

Master Warning Light:

Comes on

P0AF5-674

Sensor of Rear Motor Inverter Temperature (Circulate of Power Supply)

Open or short to +B in rear motor inverter temperature sensor circuit

(1 trip detection logic)

Inverter with converter assembly

Comes on

Master Warning Light:

Comes on
Table 1. Related Data List

DTC No.

Data List

P0AF4-673

Motor Temp No2

P0AF5-674

CAUTION / NOTICE / HINT

Tip:

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.

  1. Turn the power switch on (IG) and wait for 5 seconds or more.

PROCEDURE

  1. REPLACE INVERTER WITH CONVERTER ASSEMBLY

    Click here

    Result

    Proceed to

    NEXT
    NEXT

    COMPLETED