Circuit/System Verification

Ignition ON.
Verify the scan tool Adjust Display Up Switch parameter toggles between Active and Inactive when the S27 Head-Up Display Up Switch is pressed and released.
- If the scan tool parameter does not change properly
  Refer to Circuit/System Testing .
- If the scan tool parameter changes properly
Verify the scan tool Adjust Display Down Switch parameter toggles between Active and Inactive when the S27 Head-Up Display Down Switch is pressed and released.
- If the scan tool parameter does not change properly
  Refer to Circuit/System Testing .
- If the scan tool parameter changes properly
Verify the scan tool Page Switch parameter toggles between Active and Inactive when the S27 Head-Up Display Page Switch is pressed and released.
- If the scan tool parameter does not change properly
  Refer to Circuit/System Testing .
- If the scan tool parameter changes properly
All OK.