Step | Action | Yes | No |
|---|---|---|---|
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 automatic level control sensor supply voltage circuit and the automatic level control sensor ground circuit. Does the test lamp illuminate? | Go to Step 4 | Go to Step 13 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 14 |
5 | Connect a 10 A fused jumper between the automatic level control sensor exhaust solenoid control circuit and a good ground. Does the exhaust solenoid activate and vent air? | Go to Step 15 | Go to Step 6 |
6 | Inspect the fuse in the jumper wire. Did the fuse in the jumper open? | Go to Step 16 | Go to Step 7 |
7 |
Does the test lamp illuminate? | Go to Step 17 | 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 18 | Go to Step 9 |
9 | Repair the open in the automatic level control compressor motor supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | -- |
10 | Test the automatic level control sensor supply voltage circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 11 |
11 | Test the battery positive voltage circuit of the automatic level control inflation time relay for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 12 |
12 | Replace the automatic level control inflation timer relay. Did you complete the replacement? | Go to Step 18 | -- |
13 | 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 18 | -- |
14 | Repair the open in the automatic level control accessory voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 18 | -- |
15 | Replace the automatic level control sensor. Refer to Automatic Level Control Sensor Replacement . Did you complete the replacement? | Go to Step 18 | -- |
16 | Repair 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 18 | -- |
17 | Replace the automatic level control air compressor head. Refer to Automatic Level Control Air Compressor Head Replacement . Did you complete the replacement? | Go to Step 18 | -- |
18 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
