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Home >> Lexus >> 2021 >> GX 460 Premium >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Air Suspension System (Diagnostic Codes & Symptom Tests) >> Air Suspension System >> DTC C1794: Height Control OFF Switch Circuit (Test Mode DTC) [08/2019 - 08/2021] >> Description

DTC C1794: Height Control OFF Switch Circuit (Test Mode DTC) [08/2019 - 08/2021]: Description

If the height control OFF switch (combination switch assembly) is pressed when the vehicle is stopped with the engine running or the engine switch on (IG), vehicle height control is disabled and remains disabled even after the engine switch is turned off. Pressing the height control OFF switch (combination switch assembly) again with the engine running or the engine switch on (IG) resumes vehicle height control. If the vehicle speed reaches approximately 30 km/h (19 mph) when vehicle height control is disabled, vehicle height control automatically resumes.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
C1794 Height Control OFF Switch Circuit (Test Mode DTC) Stored only during test mode.
  • Height control OFF switch (combination switch assembly)
  • Harness or connector
  • Suspension control ECU
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