Component Testing

Static Test

1. Ignition OFF, disconnect the harness connector at the S27 Head-Up Display Switch.
2. Test for 5.8-6.2kΩ between the signal terminal 6 and the low reference circuit terminal 1.
   • If less than 5.8kΩ or more than 6.2kΩ  

     Replace the S27 Head-Up Display Switch.

   • If 5.8-6.2kΩ 
3. Test for 550-650 Ω between the signal terminal 6 and the low reference circuit terminal 1 while pressing the Page switch.
   • If less than 550Ω or more than 650Ω  

     Replace the S27 Head-Up Display Switch.

   • If 550-650 Ω 
4. Test for 1.5-1.7kΩ between the signal terminal 6 and the low reference circuit terminal 1 while pressing the Up switch.
   • If less than 1.5kΩ or more than 1.7kΩ  

     Replace the S27 Head-Up Display Switch.

   • If 1.5-1.7kΩ 
5. Test for 2.4-2.6kΩ between the signal terminal 6 and the low reference circuit terminal 1 while pressing the Down switch.
   • If less than 2.4kΩ or more than 2.6kΩ  

     Replace the S27 Head-Up Display Switch.

   • If 2.4-2.6kΩ 
6. All OK.