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Home >> Lexus >> 2010 >> LS 460 RWD >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Air Suspension (Diagnostic Codes & Circuit Tests) >> Air Suspension System >> DTC C1751: Compressor Relay Coil Malfunction >> Description

DTC C1751: Compressor Relay Coil Malfunction: Description

The signal from suspension control ECU switches the suspension control relay on, and then the height control compressor motor starts.

DTC Code Detection Condition Trouble Area
C1751 When either of the following is detected:
  • With the suspension control relay not activated, an open signal of the suspension control relay is detected for 1 second or more.
  • With the suspension control relay activated, a short signal of the suspension control relay is detected 8 times successively.
  • Suspension control relay
  • Wire harness or connector
  • Suspension control ECU