GM Service Manual Online
For 1990-2009 cars only

Circuit Description

The BCM's ground 2 circuit provides ground for the high current devices controlled by the BCM.

Conditions for Running the DTC

The BCM monitors the ground 2 at all times.

Conditions for Setting the DTC

The BCM detects that the ground 2 circuit is not at ground potential for 300 milliseconds.

Action Taken When the DTC Sets

The BCM stores DTC B1354 in memory.

Conditions for Clearing the DTC

    • A current DTC B1354 will clear if the BCM no longer detects the fault.
    • A history DTC B1354 will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.

Step

Action

Yes

No

Schematic Reference: Body Control System Schematics

Connector End View Reference: Body Control System Connector End Views

1

Perform the diagnostic system check for the system that exhibits symptoms. Refer to Control Module References .

Did you perform the Diagnostic System Check?

Go to Step 2

Go to Control Module References

2

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the Ground 2 parameter in the Body Control Module input data list.

Does the scan tool display Present?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Test the ground 2 circuit for an open, high resistance or short to a voltage source. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 6

Go to Step 4

4

Inspect for poor connections at the harness connector of the Body Control Module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 6

Go to Step 5

5

Important: Set up new body control module. Refer to Body Control Module (BCM) Programming/RPO Configuration .

Replace the Body Control Module. Refer to Body Control Module Replacement .

Did you complete the repair?

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 the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK