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Home >> Lexus >> 2009 >> RX 350 FWD >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Air Suspension System (Diagnostic Codes & Circuit Tests) >> Air Suspension System >> DTC C1742/42: Height Control Compressor Circuit >> Description

DTC C1742/42: Height Control Compressor Circuit: Description

The signal from suspension control ECU turns on the AIR SUS relay. At the time, battery voltage is input to height control compressor motor through the AIR SUS relay. The height control compressor motor starts.

DTC No. DTC Detecting Condition Trouble Area
C1742/42 42 With the AIR SUS relay activated, a lock signal of the height control compressor motor is detected for 4 sec. or more.
  • Height control compressor motor
  • Height control compressor circuit
  • Suspension control ECU