GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2003 🢒 H2 🢒 DTC 🢒 DTC C0713

Circuit Description

The air suspension compressor has a temperature sensor. The overtemperature sensor is a thermal limit switch that is in the normally closed position. This provides a ground signal to the air suspension module. The air suspension module monitors the temperature sensor for a compressor overtemperature condition. On receipt of a compressor overtemperature condition the air suspension module switches off the compressor relay. The relay cannot be switched on again until at least three minutes after removal of the overtemperature condition.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

Air suspension module senses a compressor overtemperature condition.

A loss of ground signal at Air Suspension module pin 18.

Action Taken When the DTC Sets
    • Air suspension functionality is suspended.
    • SERVICE AIR SUSPENSION message is displayed.

Conditions for Clearing the DTC

The DTC will clear when the condition for setting the DTC is removed.

Diagnostic Aids
    • This DTC is set when the compressor has run so long that it has overheated.
    • The compressor has overheated because of a blockage in the air system.
    • Bad compressor motor ground will set this DTC.

Test Description

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

  1. Tests whether the condition is module, system, or condition related.

    2.

  2. Tests for a short to voltage in the compressor battery positive voltage circuit or a defective air suspension relay.

    3.

  3. Tests if the DTC sets during normal operating conditions.

Step

Action

Yes

No

Schematic Reference: Suspension Controls Schematics

1

Did you perform the Air Suspension Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Air Suspension

2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, monitor the DTC Information for DTC C0713 in the air suspension module.

Does the scan tool indicate that DTC C0713 is current?

Go to Step 4

Go to Step 3

3

Most occurrences of this DTC are caused by overload of the compressor. Review the Air Suspension System with the customer to verify the conditions under which the DTC set.

Did vehicle operation cause this DTC to set?

Go to Diagnostic Aids

Go to Step 4

4

  1. Turn OFF the ignition.
  2. Check for a defective air suspension relay.
  3. Disconnect the air suspension relay. Test for a short to voltage in the compressor battery positive voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Does the DTC reset?

Go to Step 5

System OK

5

Replace the air suspension compressor. Refer to Automatic Level Control Air Compressor Replacement .

Did you complete the replacement?

Go to Step 6

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6

  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within normal operating conditions.

Does the DTC reset?

Go to Step 7

System OK

7

Important: Always perform the check trim height procedure after air suspension module replacement.

  1. Replace the air suspension module. Refer to Automatic Level Control Air Compressor Replacement .
  2. Perform the trim height calibration procedure for the air suspension module if necessary after check trim height procedure.

Did you complete the replacement?

System OK

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