Probable Cause
- Auto-start not responding.
- Keypad not responding.
- Insufficient battery voltage.
- Loose wire connections.
- Worn or damaged wire harnesses.
- Malfunctioning display console.
- Malfunctioning alternator control board (ACB).
Corrective Action
- Check auto start not responding
- Test keypad in diagnostics.
- Access Diagnostics by holding down the UP ARROW, then pressing the CLEAR key twice.
- Then press and hold COOL DOWN and then press ENTER for entry into the TEST/SERVICE MENU.
- Check the battery voltage. There is a 9VDC alkaline battery and it should test at a minimum of 9.0 VDC. Replace the battery if it fails to meet minimum requirements.
- Disconnect then reconnect connections.
- Inspect wire harnesses. Replace the worn or damaged harness.
- Test with substitute display console. Replace malfunctioning display console if necessary.
- Test with a known good alternator control board. Replace malfunctioning board if necessary.
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