Use the following procedure to troubleshoot the headup display system.
*: Use the GTS.
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Measure the battery voltage.
11 to 14 V
If the battery voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
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Check if CAN communication DTCs are output.
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| CAN communication DTCs are not output. | A |
| CAN communication DTCs are output. | B |
A
B
Check for DTCs.
Clear the DTCs.
Recheck for DTCs.
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| DTCs are not output. | A |
| DTCs are output. | B |
A
B
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Refer to Problem Symptoms Table.
| Result | Proceed to |
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| Fault is not listed in Problem Symptoms Table. | A |
| Fault is listed in Problem Symptoms Table. | B |
A
B
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