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Height Control Compressor: Inspection

INSPECT HEIGHT CONTROL COMPRESSOR (EXHAUST VALVE)

Measure the resistance of the exhaust valve.

Measure the resistance according to the value(s) in the table.

Standard resistance

HEIGHT CONTROL COMPRESSOR (EXHAUST VALVE)

Tester Connection	Condition	Specified Condition
1(B)-2(L)	at 20°C (68°F)	10 to 14 Ω

Fig 1: Identifying Height Control Compressor (Exhaust Valve)

G04944144

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the exhaust valve operation.
1. Connect terminal 1 to the battery positive (+) terminal, and terminal 2 to the battery negative (-) terminal.
2. Check the operating sound of the height control valve.
  
  Fig 2: Identifying Exhaust Valve
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: It should make an operating sound (click).

INSPECT HEIGHT CONTROL COMPRESSOR (COMPRESSOR MOTOR)
1. Check the compressor operation.
  1. Connect terminal 1 (B) to the battery positive (+) terminal, and terminal 2 (E) to the battery negative (-) terminal.
  2. Check the operation of the compressor motor.
    
    Fig 3: Inspecting Height Control Compressor (Compressor Motor)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    OK: Motor operates.
    NOTE:
    Do not operate the height control compressor for 60 seconds or more.
    
    Since a short and a lock-up inside the height control compressor cause excessive current to flow, stop operation immediately when the compressor motor does not operate.