Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Automatic Level Control Schematics | |||
1 | Did you review the ALC System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 |
Does the test lamp illuminate? | Go to Step 3 | Go to Step 10 |
3 | Connect a test lamp between the battery positive voltage circuit and the ground circuit of the ALC sensor. Does the test lamp illuminate? | Go to Step 4 | Go to Step 11 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 12 |
5 | Connect a 10 A fused jumper between the automatic level control exhaust solenoid control circuit of the ALC sensor and a good ground. Does the exhaust solenoid activate and vent air? | Go to Step 14 | Go to Step 6 |
6 | Inspect the fuse in the jumper wire. Did the fuse in the jumper open? | Go to Step 13 | Go to Step 7 |
7 |
Does the test lamp illuminate? | Go to Step 15 | Go to Step 8 |
8 | Test the automatic level control exhaust solenoid control circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 9 |
9 | Repair the open in the battery positive voltage circuit of the ALC compressor. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- |
10 | Repair the open in the battery positive voltage circuit of the ALC sensor. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- |
11 | Repair the open in the automatic level control sensor ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- |
12 | Repair the open in the ignition 1 voltage circuit of the ALC sensor. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- |
13 | Repair the short to voltage in the automatic level control exhaust solenoid control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- |
14 | Replace the auto level control sensor. Refer to Automatic Level Control Sensor and Bracket Replacement . Did you complete the replacement? | Go to Step 16 | -- |
15 | Replace the auto level control air compressor head. Refer to Automatic Level Control Air Compressor Head Replacement . Did you complete the replacement? | Go to Step 16 | -- |
16 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
