Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Head Up Display Schematics | |||
1 | Did you perform the HUD Diagnostic System Check? | Go to Step 2 | |
2 |
Is the HUD display visible? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Test for an open, for a short to ground, and a short to battery in the ignition circuit of the HUD module. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 4 |
4 | Test for an open or high resistance in the ground circuit of the HUD module. Did you find and correct the condition? | Go to Step 11 | Go to Step 5 |
5 | Test for a short to ground in the dimmer signal circuit. Did you find and correct the condition? | Go to Step 11 | Go to Step 6 |
6 |
Does the resistance change smoothly between 2 Kohms-10 Kohms? | Go to Step 7 | Go to Step 8 |
7 | Inspect for poor connections at the harness connector of the HUD module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 9 |
8 | Inspect for poor connections at the harness connector of the HUD dimmer switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
9 | Replace the HUD module. Refer to Head Up Display Module Replacement . Did you complete the replacement? | Go to Step 11 | -- |
10 | Replace the HUD dimmer switch. Refer to Head Up Display Switch Replacement . Did you complete the replacement? | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
