DTC C0697. HUMMER H2 2008

For 1990-2009 cars only

Makes 🢒 HUMMER 🢒 2008 🢒 H2 🢒 Suspension 🢒 Air Suspension 🢒 DTC C0697

DTC C0697 SUT

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC C0697 02: Level Control Accessory Inflator Switch Circuit Short to Ground

Diagnostic Fault Information

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
Inflator Switch Signal	C0697 02	1	1	1
1. Inflator Switch Inoperative

Circuit Description

The air suspension control module (ASCM) monitors the air inflator switch circuit signal for a short to ground with ignition ON and up to 3 minutes with the ignition OFF.

Conditions for Running the DTC

•	Battery voltage is between 9-16 volts.

•	The ignition is ON or OFF.

Conditions for Setting the DTC

The air suspension control module senses air inflator switch signal circuit voltage shorted to ground.

Action Taken When the DTC Sets

•	The air suspension system will be inoperative.

•	No message is displayed.

Conditions for Clearing the MIL/DTC

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

Reference Information

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit Validation

Ignition ON, Observe the scan tool Inflator Switch parameter while pressing/depressing the inflator switch. The reading should change between Released and Pressed.

Circuit/System Testing

Ignition OFF, disconnect the air suspension control module harness connector terminal at the inflator switch.
Test for less than 2.0 ohms between the ground circuit connector X452 terminal B and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

Verify the scan tool Inflator Switch parameter is Pressed.

⇒	If not the specified value, test the signal circuit connector X452 terminal C for a short to voltage. If the circuit tests normal, test or replace the air suspension control module.

Install a 3A fused jumper wire between the signal circuit terminal C and the ground circuit terminal B. Verify the scan tool Inflator Switch parameter is Released.

⇒	If not the specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the air suspension control module.

If all circuits test normal, test or replace the inflator switch.

Component Testing

Ignition OFF, disconnect the air suspension control module harness at the inflator switch.
Test for infinite resistance between the inflator switch signal circuit connector X452 terminal C and the ground circuit Connector X452 terminal B with the switch in the open position.

⇒	If not the specified value, replace the Inflator switch.

Test for less than 2.0 ohms between the signal terminal C and the ground terminal B with the switch in the closed position.

⇒	If greater than the specified range, replace the inflator switch.

Test for infinite resistance between each terminal and the switch housing/case.

⇒	If not the specified range, replace the inflator switch.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

•	Inflator Air Switch Replacement

•	Suspension Position Calibration

•	Control Module References for ASCM replacement, setup and programming

DTC C0697 SUV