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Home >> Chevrolet >> 2005 >> Optra5 LS, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Interior/Illumination Lights >> Lighting Systems >> Diagnostic Information and Procedures >> High Beams Inoperative

High Beams Inoperative

Step Action Values Yes No
1 Inspect the high-beam headlamps in the flash-to-pass mode.
Do the high-beam headlamps work in the flash-to-pass mode?
- Go to Step 10  Go to Step 2 
2 Measure the voltage at the headlamp switch connector terminal 7.
Does the voltage measure within the specified range?
11-14 V Go to Step 4  Go to Step 3 
3 Repair the open circuit between the headlamp switch connector terminal 7 and the fuse Ef12.
Did you complete the repair?
- System OK Go to Step 4 
4 Inspect fuses Ef15.
Is the fuse open?
- Go to Step 5  Go to Step 6 
5
  1. Inspect for a short circuit. Repair it, if necessary.
  2. Replace the fuse.
Did you find and correct the condition?
- System OK -
6
  1. Turn the high-beam headlamps ON.
  2. Measure the voltage at fuses Ef15.
Does the voltage available at fuses Ef15 measure within the specified range?
11-14 V Go to Step 7  Go to Step 12 
7
  1. Turn the high-beam headlamps ON.
  2. Measure the voltage at headlamp terminal 4 (terminal 2 if hatchback) with high beams selected.
Does the voltage available at the headlamp connector terminal 4 measure within the specified range?
11-14 V Go to Step 9  Go to Step 8 
8 Repair the open circuit between fuse EF16 and the high-beam headlamps.
Did you complete the repair?
- System OK -
9 Replace the faulty headlamps.
Did you complete the replacement?
- System OK -
10
  1. Disconnect the headlamp combination switch connector.
  2. Put the switch in the high-beam position.
  3. Use an ohmmeter to check the continuity of the headlamp switch between terminals 7 and 4 (terminal 2 if hatchback).
Does the ohmmeter indicate the specified value?
0 Ω Go to Step 12  Go to Step 11 
11 Replace the headlamp combination switch.
Did you complete the replacement?
- System OK -
12 Repair the open circuit between headlamp combination switch connector, terminal 4 (terminal 2 if hatchback), and Ef15.
Did you complete the repair?
- System OK -