Did you review the night vision operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms - Night Vision

1. Position the vehicle approximately 8 meters (25 feet) from the nearest objects in front of the vehicle.
2. Cover the ambient light sensor.
3. Turn ON the ignition.
4. Turn on the headlamps.
5. Cover the lower windshield with a mat.
6. Set the DIM CONTROL slider switch on the head-up display (HUD) control to maximum intensity.
7. Observe the HUD. The night vision logo warm-up image should appear.
8. Wait 45 seconds.
9. Observe the HUD. The night vision camera thermal video image should appear.
10. Turn the DIM CONTROL slider switch on the HUD control to the OFF position, then turn the switch back on. The HUD image should turn off, then back on.

Does the system operate normally?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

1. Turn OFF the ignition.
2. Disconnect the head-up display (HUD) control connector.
3. Turn ON the ignition.
4. Test the night vision display off signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 9

Go to Step 4

1. Turn OFF the ignition.
2. Measure the resistance between the night vision display off signal circuit at the head-up display connector and ground.
3. Turn the head-up display control from OFF to ON and back to OFF.

Is the measured resistance less than 20ohms with the switch OFF and infinite (OL) with the switch ON?

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Go to Step 7

Go to Step 5

Inspect the head-up display (HUD) control connector for poor connections. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 9

Go to Step 6

Replace the head-up display (HUD) control. Refer to Head Up Display Switch Replacement .

Did you complete the replacement?

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Go to Step 9

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Inspect the head-up display (HUD) connector for poor connections. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 9

Go to Step 8

Replace the head-up display (HUD). Refer to Head Up Display Module Replacement .

Did you complete the replacement?

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Go to Step 9

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

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