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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1130 (Suspension Control System - Suspension Leveling) >> Diagnostic Information and Procedures >> Automatic Level Control Inflator Fill Valve Inoperative

Automatic Level Control Inflator Fill Valve Inoperative

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Automatic Level Control Inflator Fill Valve Inoperative

Step Action Yes No
1 Did you review the Automatic Level Control System Description and Operation and perform the necessary inspections? Go to Step 2  Go to Symptoms - Automatic Level Control 
2
  1. Turn ON the ignition, with the engine OFF.
  2. Turn ON the air inflator switch.
Does the ALC inflator fill valve operate normally?		 Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3
  1. Disconnect the air inflator switch connector.
  2. Connect a 10 A fused jumper from the ALC inflation timer relay coil control circuit to the ground circuit of the air inflator switch.
  3. Probe the ALC inflator solenoid valve supply voltage circuit of the ALC air inflator relay connector with a test lamp that is connected to a good ground.
Does the test lamp illuminate?		 Go to Step 4  Go to Step 8 
4
  1. Disconnect the ALC air inflator solenoid valve connector.
  2. Connect a test lamp between the ALC inflator solenoid valve supply voltage circuit of the ALC air inflator solenoid valve connector and a good ground.
Does the test lamp illuminate?		 Go to Step 5  Go to Step 6 
5 Connect a test lamp between the ALC inflator solenoid valve supply voltage circuit and the ground circuit of the ALC air inflator solenoid valve connector.
Does the test lamp illuminate?		 Go to Step 9  Go to Step 7 
6 Repair the open in the ALC inflator solenoid valve supply voltage circuit. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?		 Go to Step 10  -
7 Repair the open in the ground circuit of the ALC air inflator solenoid valve connector.
Did you complete the repair?		 Go to Step 10  -
8 Replace ALC air inflator relay. Refer to Automatic Level Control Relay Replacement .
Did you complete the replacement?		 Go to Step 10  -
9 Replace the ALC air inflator solenoid valve. Refer to Inflator Solenoid Replacement .
Did you complete the replacement?		 Go to Step 10  -
10 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 3 
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