Air Suspension System Problem Symptoms Table

Air Suspension System -- Problem Symptoms Table


HINT:
  1. Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Air Suspension System
Symptom
Suspected Area
See page
Suspension control ECU does not operate
Harness or connector (power source of suspension control ECU)
LandCruiser RM000001N9301JX.html
Suspension control ECU
LandCruiser RM000002BGR01UX.html
Air suspension system DTC cannot be output (when using intelligent tester)
CAN communication system (for LHD)
LandCruiser RM000001RSO0C5X.html
CAN communication system (for RHD)
LandCruiser RM000001RSO0BZX.html
Harness or connector (power source of suspension control ECU)
LandCruiser RM000001N9301JX.html
Suspension control ECU
LandCruiser RM000002BGR01UX.html
Air suspension system DTC cannot be output (when not using intelligent tester)
CAN communication system (for LHD)
LandCruiser RM000001RSO0C5X.html
CAN communication system (for RHD)
LandCruiser RM000001RSO0BZX.html
Harness or connector (power source of suspension control ECU)
LandCruiser RM000001N9301JX.html
Suspension control ECU
LandCruiser RM000002BGR01UX.html
Combination meter assembly
LandCruiser RM000002Z4L055X.html
Height control indicator does not come on
CAN communication system (for LHD)
LandCruiser RM000001RSO0C5X.html
CAN communication system (for RHD)
LandCruiser RM000001RSO0BZX.html
Combination meter assembly
LandCruiser RM000002Z4L055X.html
Harness or connector (power source of suspension control ECU)
LandCruiser RM000001N9301JX.html
Suspension control ECU
LandCruiser RM000002BGR01UX.html
Height control indicator does not change even though vehicle height modes are switched using height control switch
Check test mode DTC (height control switch signal check)
LandCruiser RM000001N9M01HX.html
Suspension control relay (AIR SUS relay)
-
Compressor motor
LandCruiser RM000001N9601JX.html
Harness or connector (power source of compressor motor)
LandCruiser RM000001N9301JX.html
Continuous electric current to height control
LandCruiser RM000002PEE026X.html
Suspension control ECU
LandCruiser RM000002BGR01UX.html
Height control cannot be disabled using height control OFF switch
Check test mode DTC (height control OFF switch signal check)
LandCruiser RM000001N9M01HX.html
Suspension control ECU
LandCruiser RM000002BGR01UX.html
Vehicle is not level
Air leakage
LandCruiser RM000001U54015X.html
Adjust height control sensor link
LandCruiser RM0000038UA01DX_01_0013.html
Height control sensor
LandCruiser RM00000466700DX.html
Suspension control ECU
LandCruiser RM000002BGR01UX.html
Warning message is shown on multi-information display even though DTC is not output
Connect of the connector
-
CAN communication system (for LHD)
LandCruiser RM000001RSO0C5X.html
CAN communication system (for RHD)
LandCruiser RM000001RSO0BZX.html
Harness or connector (power source of suspension control ECU)
LandCruiser RM000001N9301JX.html
Combination meter assembly
LandCruiser RM000002Z4L055X.html
Suspension control ECU
LandCruiser RM000002BGR01UX.html