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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 748 (Suspension Control System - Suspension Leveling) >> Diagnostic Information and Procedures >> DTC 021 >> Test Description

Test Description

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The number(s) below refer to the step number(s) on the diagnostic table.

2. Tests for voltage at the coil side of the accessory inflator solenoid. The ELC relay fuse supplies power to the coil side of the accessory inflator solenoid.

3. Verifies that the height sensor is providing ground to the accessory inflator solenoid.

4. Tests if ground is constantly being applied to the accessory inflator solenoid.

9. Verifies that the sensor is self tested after replacement

Fig 1: DTC 021 - Diagnostic Chart
G01483329Courtesy of GENERAL MOTORS CORP.