Head Up Display (HUD) Image Adjustment Inoperative. Pontiac Grand Prix 2001

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2001 🢒 Grand Prix 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 Head Up Display (HUD) Image Adjustment Inoperative

Step	Action	Yes	No
Schematic Reference: Head Up Display Schematics
1	Did you review the operation and perform the necessary inspections?	Go to Step 2	Go to Symptoms - Instrument Panel, Gages and Console
2	Turn the ignition ON, with the engine OFF. Adjust the head up display (HUD) UP, then DOWN. Does the HUD display adjust properly?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn the ignition OFF. Disconnect the HUD. Connect a test lamp between the UP control circuit and ground. Refer to Circuit Testing in Wiring Systems. Turn the ignition ON, with the engine OFF. Move the HUD up/down switch to the UP position. Does the test lamp illuminate?	Go to Step 4	Go to Step 5
4	Connect a test lamp between the DOWN control circuit and ground. Refer to Circuit Testing in Wiring Systems. Move the HUD up/down switch to the DOWN position. Does the test lamp illuminate?	Go to Step 9	Go to Step 6
5	Test the HUD UP control circuit for an open or for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 11	Go to Step 7
6	Test the HUD DOWN control circuit for an open or high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 11	Go to Step 7
7	Inspect for poor connections at the harness connector of the HUD 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 8
8	Replace the HUD switch. Refer to Head Up Display Switch Replacement . Did you complete the replacement?	Go to Step 11	--
9	Inspect for poor connections at the harness connector of the HUD. 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
10	Replace the HUD. Refer to Head Up Display Module 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