Step
| Action
| Value(s)
| Yes
| No
|
1
| Ignition OFF.
- Disconnect the instrument cluster head-up display (HUD) dimmer
switch.
- Turn the ignition switch ON.
Does the (HUD) turn off ?
| | Go to
Step 3
| Go to
Step 2
|
2
|
- With the instrument cluster head-up display (HUD) dimmer switch
disconnected and ignition on.
- Use a DMM in order to measure the voltage between the instrument
cluster (HUD) dimmer switch harness connector terminal C and ground.
Is the voltage equal to the specified value?
| Less than 1 V
| Go to
Step 3
| Go to
Step 4
|
3
| Use a DMM in order to measure the resistance between the instrument
cluster (HUD) dimmer switch terminals A and C while rotating the dimmer switch.
Does the resistance change value?
| .5 to 4.0 ohmsOhms
| Go to
Step 6
| Go to
Step 5
|
4
|
- Repair the short to B+ in CKT 717
- Inspect the system.
Is the symptom still present?
| --
| Go to
Head Up Display (HUD) System Check
| System OK
|
5
|
- Replace the instrument cluster head-up display (HUD) dimmer switch.
Refer to
Head Up Display Module Replacement
- Inspect the system.
Is the symptom still present?
| --
| Go to
Head Up Display (HUD) System Check
| System OK
|
6
|
- Replace the instrument cluster head-up display (HUD) . Refer to
Head Up Display Module Replacement
- Inspect the system.
Is the symptom still present?
| --
| Go
to
Head Up Display (HUD) System Check
| System OK
|
