Load Leveling Rear Air Suspension System Does Not Operate
Load Leveling Rear Air Suspension System Does Not Operate1. CHECK WARNING LAMP ACTIVATION
Make sure warning lamp remains off while driving.
OK or NG
OK >> >> GO TO 2.
NG >> Carry out self-diagnosis.
2. CHECK FUSES
Check that the following fuses are not blown.
OK or NG
OK >> >> GO TO 3.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse.
3. CHECK SUSPENSION CONTROL UNIT POWER AND GROUND
1. Turn the ignition switch ON.
2. Check voltage between suspension control unit connector B3 terminal 6 (G/R) and ground and between suspension control unit connector B3 terminal 7 (W/L) and ground.
Voltage: Approximately 12V
3. Check resistance between suspension control unit connector B3 terminal 16 (B) and ground.
Continuity should exist.
OK or NG
OK >> >> GO TO 4.
NG >> Repair the circuit.
4. CHECK GENERATOR SIGNAL INPUT
1. Start the engine.
2. Check voltage between suspension control unit connector B3 terminal 15 (BR/W) and ground.
Voltage: Approximately 12V
OK or NG
OK >> >> Replace the suspension control unit.
NO >> Repair the circuit.