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SUSPENSION CONTROL SYSTEM INOPERATIVE SCS-37 < SYMPTOM DIAGNOSIS > C D F G H I J K L M A B SCS N O P SUSPENSION CONTROL SYSTEM INOPERATIVE Description INFOID:0000000005148194 The suspension control system does not activate. It does not raise or lower the vehicle in response to ride height changes. Diagnosis Procedure INFOID:0000000005148195 1. SUSPENSION CONTROL UNIT POWER AND GROUND INSPECTION Check the suspension control unit power and ground supply. Refer to . Does the suspension control unit power and ground pass inspection? YES >> GO TO 2. NO >> Repair or replace the malfunctioning part. 2. CHECK HEIGHT SENSOR SIGNAL INPUT CONSULT-III DATA MONITOR 1. Turn ignition switch ON. 2. Select "HEIGT SEN" of AIR LEVELIZER data monitor item. 3. Check the monitor status. Is the height sensor voltage normal? YES >> GO TO 3. NO >> Check height sensor signal circuit. Refer to 3. CHECK GENERATOR "L" CIRCUIT SIGNAL CONSULT-III DATA MONITOR 1. Start the engine. 2. Select "ACG L" of AIR LEVELIZER data monitor item. 3. Check the monitor status. Is the generator "L" signal operating normally? YES >> GO TO 4. NO >> Check generator L circuit. Refer to 4. SUSPENSION AIR COMPRESSOR POWER AND GROUND INSPECTION Check the suspension air compressor power and ground supply. Refer to PRESSOR : Diagnosis Procedure" . Does the suspension air compressor power and ground pass inspection? YES >> System is operating normally. NO >> Repair or replace the malfunctioning part. HEIGT SEN : 0.2V - 4.8V ACG L : OFF with charge light OFF |