LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1516 (Instrument Panel System Displays, Gauges And Console) >> Diagnostic Information and Procedures >> Head Up Display (HUD) Image Adjustment Inoperative

Head Up Display (HUD) Image Adjustment Inoperative

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Head Up Display (HUD) Image Adjustment Inoperative

Step Action Yes No
Schematic Reference:  Head Up Display Schematics  
1 Did you perform the IPC Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Instrument Cluster 
2
  1. Turn the ignition ON, with the engine OFF.
  2. 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
  1. Turn the ignition OFF.
  2. Disconnect the HUD connector.
  3. Connect a test lamp between the HUD display UP circuit and B+. Refer to Circuit Testing in Wiring Systems.
  4. Turn the ignition ON, with the engine OFF.
  5. Move the HUD up/down switch to the UP position.
Does the test lamp illuminate?		 Go to Step 4  Go to Step 5 
4
  1. Connect a test lamp between the HUD display down circuit and B+ at the IPC. Refer to Circuit Testing in Wiring Systems.
  2. Move the HUD up/down switch to the DOWN position.
Does the test lamp illuminate?		 Go to Step 12  Go to Step 6 
5 Test the HUD display up 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 15  Go to Step 9 
6 Test the HUD display down circuit for an open, a short to ground, or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 15  Go to Step 7 
7 Test the HUD display switch down circuit for an open or high resistance at the HUD switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 15  Go to Step 8 
8 Test the HUD display up circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 15  Go to Step 10 
9 Test the HUD display up circuit for an open or for a high resistance at the HUD switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 15  Go to Step 10 
10 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 15  Go to Step 11 
11 Replace the HUD dimmer switch. Refer to Head Up Display Switch Replacement .
Did you find and correct the condition?		 Go to Step 15  Go to Step 14 
12 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 15  Go to Step 13 
13 Replace the HUD. Refer to Head Up Display Replacement .
Did you complete the replacement?		 Go to Step 15  -
14 Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement .
Did you complete the replacement?		 Go to Step 15  -
15 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
scientia non olet · About LEMON Manuals