Symptom Related Diagnostic Procedures

6000
1986
Troubleshooting
1. With the ignition switch OFF, check that battery voltage is present at all the ORN wires in the ELC compressor assembly connector.
2. Check the CTSY and GAGES fuses.
3. If the vehicle is low, or the compressor runs continuously for a few minutes, check the air hoses for leaks or poor connections.
4. Check that G404 and G405 are clean and tight. Diagnosis
1. If the symptoms of a system do not match the ones in the table, test all the components in the system.
2. To test the actuator arm, raise the car and check that:
a. Link is attached to the height actuator arm.
b. Wiring to ELC height sensor is intact.
c. Actuator arm height adjusting nut is tight.
3. To test the ELC compressor, remove the connector from the ELC relay and jumper the following terminals with the ignition switch in the OFF position:
a. If the compressor runs, continue and test the vent solenoid.
b. If the compressor does not run, check the DRK GRN wires for opens. Check that G405 is clean and tight. If no wiring problem is found, remove the ELC compressor assembly for repair.
4. To test the vent solenoid, connect a jumper wire from the WHT wire on the ELC compressor assembly to ground. Leave the connector on the assembly and the ignition switch OFF.
a. If the solenoid valve does not open and close, remove the ELC compressor assembly and install a new vent solenoid.
b. If the solenoid operates and vents, and the actuator arm is operating correctly, but the system does not vent to lower the car, install a new ELC height sensor.
5. To test the ELC relay, with the connector connected to the ELC relay, connect a jumper from the YEL wire to ground. Leave the ignition switch OFF.
a. If the relay does not operate, install a new ELC relay.
b. If the relay is good, (compressor runs) and the actuator arm operates correctly, but the system does not operate when the car is low, install a new ELC height sensor.
6. To test the inflator switch, remove the connector from the inflator timer relay and measure the voltage to ground at the following terminals. Leave the ignition switch OFF.
a. If the voltage at the terminal is not correct, check the circuit to that terminal.
b. With the connector still removed from the inflator timer relay, measure the resistance to ground with the ignition switch in the OFF position.
c. If any resistance is not correct, check the circuit attached to that terminal.
d. If all the measurements at the inflator timer relay are correct and the inflator does not operate, check the inflator solenoid valve.
7. To test the inflator solenoid valve, with the connector still removed from the inflator timer relay, connect a jumper between terminals 2 and 4. Leave the ignition switch OFF.
a. If the valve does not operate, install a new inflator solenoid valve.
b. If the valve operates, replace the inflator timer relay.