LIGHTING SYSTEMS 9B – 27
DAEWOO V–121 BL4
Hazard Lamps Do Not Operate, Turn Signals Are OK
Step Action Value(s) Yes No
1 Check fuse EF12.
Is fuse EF12 blown?
Go to Step 2 Go to Step 3
2
1. Check for a short circuit and repair if neces-
sary.
2. Replace the fuse.
Is the repair complete?
System OK
3 Use a voltmeter to check the voltage at fuse EF12.
Is the voltage equal to the specified value?
11–14 v Go to Step 5 Go to Step 4
4 Repair the power supply circuit to fuse EF12.
Is the repair complete?
System OK
5
1. Disconnect the hazard lamp switch connector.
2. Use a voltmeter to check the voltage at hazard
switch terminal 8.
Is the voltage equal to the specified value?
11–14 v Go to Step 6 Go to Step 9
6
1. Remove the hazard lamp switch.
2. Turn the hazard lamps ON.
3. Use an ohmmeter to check the resistance be-
tween terminals 7 and 8.
Is the resistance equal to the specified value?
0 W Go to Step 7 Go to Step 10
7
1. With the hazard lamp switch still removed and
disconnected for testing, turn the hazard lamp
switch to the ON position.
2. Use an ohmmeter to check between terminals
5, 6, and 9.
Is the resistance equal to the specified value?
0 W Go to Step 8 Go to Step 10
8 Repair the open circuit between the hazard lamp
switch connector and splice S204.
Is the repair complete?
System OK
9 Repair the open circuit between the hazard lamp
switch connector terminal H and fuse EF12.
Is the repair complete?
System OK
10 Replace the faulty hazard lamp switch.
Is the repair complete?
System OK
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