LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Air Suspension) >> Diagnostic Information and Procedures >> DTC C0716 >> Test Description

Test Description

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 2:  During the left air solenoid operation, listen for an audible click. Command the ON and the OFF states. Repeat the commands as necessary.
  2. 3:  Verifies that the air suspension module is providing voltage to the left air solenoid.
  3. 4:  Tests for an open in the ground circuit to the left air solenoid.
  4. 5:  Tests for constant voltage to the left air solenoid.
DTC C0716

Step Action Yes No
Schematic Reference: Air Suspension Schematics 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2 
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, command the left air solenoid ON and OFF.
Does the air solenoid turn ON and OFF with each command?		 Go to Diagnostic Aids Go to Step 3 
3 
  1. Turn OFF the ignition.
  2. Disconnect the air suspension inlet valve.
  3. Turn ON the ignition, with the engine OFF.
  4. Connect a test lamp to ground.

    Probe the control circuit of the inlet valve with a test lamp that is connected to ground.

  5. With a scan tool, command the left air solenoid ON and OFF.
Does the test lamp turn ON and OFF with each command?		 Go to Step 4  Go to Step 5 
4 
  1. Connect a test lamp between the control circuit of the inlet valve and the ground circuit of the inlet valve.
  2. With a scan tool, command the Left Air Solenoid ON and OFF.
Does the test lamp turn ON and OFF with each command?		 Go to Step 8  Go to Step 10 
5  Does the test lamp remain illuminated with each command? Go to Step 7  Go to Step 6 
6 Test the control circuit of the inlet valve for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 13  Go to Step 9 
7 Test the control circuit of the inlet valve for a short to voltage. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 13  Go to Step 9 
8 Inspect for poor connections at the inlet valve. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 13  Go to Step 11 
9 Inspect for poor connections at the harness connector of the Air Suspension Module. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 13  Go to Step 12 
10 Repair the ground circuit of the inlet valve. Refer to Wiring Repairs .
Did you complete the repair?		 Go to Step 13  -
11 Replace the air suspension inlets valve. Refer to Valve Automatic Level Control Solenoid Replacement (Dual Compressors)  or Valve Automatic Level Control Solenoid Replacement (Single Compressor) .
Did you complete the replacement?		 Go to Step 13  -
12
  1. Replace the air suspension module. Refer to Control Module References .
  2. Perform the trim height calibration procedure for the air suspension module if necessary after check trim height procedure.
Did you complete the replacement?		 Go to Step 13  -
13
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC.
Does the DTC reset?		 Go to Step 2  System OK
scientia non olet · About LEMON Manuals