RX400h · Service Manual HEATER & AIR CONDITIONING SYSTEM

B1474/74

Diagnostic trouble codes

DESCRIPTION

DTC No.
 DTC Detecting Condition
 Trouble Area
B1474/74
 A/C inverter malfunction
  1. w/ Motor compressor assembly

INSPECTION PROCEDURE


1. READ OUTPUT DTC (DTC B1474/74 IS OUTPUT AGAIN)

  1. Clear the DTC (Click here).

  1. Start the engine.

  1. Blower speed switch is at "LO".

  1. A/C switch is ON.

  1. Read the DTC (Click here).

    Result:
    Result
    		 Proceed to
    DTC B1474/74 is output
    		 A
    DTC B1474/74 is not output
    		 B



B
REPLACE W/MOTOR COMPRESSOR ASSEMBLY
A

REPLACE W/MOTOR COMPRESSOR ASSEMBLY


← B1473/73B1475/75 →