1

1. Turn the ignition switch to RUN.
2. Disconnect the air suspension dump switch.
3. Connect a fused jumper wire between terminal 1 and terminal 2 of the air suspension dump valve switch.

Does the Air Suspension Dump Solenoid Valve disengage?

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Go to Step  2

Go to Step  3

Replace the air suspension dump solenoid valve switch.

Is the Air Suspension Valve engaged at all times?

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Go to Step 3

System OK

1. Disconnect the air suspension dump solenoid valve harness connector
2. Connect a test lamp between terminals A and B of the Air Suspension Dump Valve connector

Does the test lamp light?

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Go to Step  5

Go to Step  4

Locate and repair open in BLU (122,622,1944) or BLK (150) circuit between the Air Suspension Dump Switch and G404.

Is the repair complete?

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System OK

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Replace the air suspension dump valve.

Does the rear air springs deflate?

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System OK

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