Control Module Ground A

Where it lives

For U3008, start at the module the description names.

Check these first

• A loose or corroded control module ground A connection
• High resistance in the control module ground A circuit
• An open in the control module ground A wire
• A failed control module that will not read the ground

What to do next

1. Read module voltage and ground on a scan tool
2. Inspect control module ground A for corrosion and tightness
3. Measure voltage drop on the control module ground A circuit
4. Clean and retighten control module ground A
5. Replace the control module if the ground tests good
6. Clear the code and retest

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