LT
LT
LT
LT
Lighting
Lighting
Lighting
Lighting System
System
System
System
-
63
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Diagnosis
Diagnosis
Diagnosis
Diagnosis and
and
and
and Testing
Testing
Testing
Testing
Fault
Fault
Fault
Fault diagnosis
diagnosis
diagnosis
diagnosis
2. Turn signal indicator diagnosis
Step Operation
Yes
No
1
Turn on the ignition switch and press the hazard warning lamp switch.
Are front/rear left/right turn signal lamps flickering continuously?
Go to Step 2. Go to Step 5.
2 Are left/right turn signal indicators flickering continuously? Go to Step 3. Check circuit.
3
Turn on the ignition switch and set the turn signal lamp switch to left/right
turning position.
Does left/right turn signal indicator flicker as expected?
Go to Step 4. Go to Step 6.
4
Turn on the ignition switch and set the turn signal lamp switch to left/right
turning position.
Does left/right turn signal indicator in combination instrument flicker as
expected?
System is normal. Go to Step 8.
5
Connect the temporary vehicle ground to body control module terminal.
Does the hazard warning lamp flicker as expected?
H azard warning
lamp operates
normally.
Check body
computer.
6
Use multimeter to measure the voltage of flasher relay.
Does the multimeter indicate the battery voltage?
Replace flasher
relay.
Check circuit.
7
Use multimeter to measure the circuit voltage of turn signal lamp .
Does the multimeter indicate the battery voltage?
Check circuit. Check circuit.
8
①
Turn off the hazard warning lamp .
② Turn off the ignition switch.
③
Remove the combination instrument.
④ Us e the multimeter to measure the circuit resistance. Is the reading below 1
Ohm
？
Replace
combination
instrument.
Repair circuit.
9
① Check if the system operates normally.
②
Does the system operate normally?
System is normal. Go to Step 1.
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