LT
LT
LT
LT Lighting
Lighting
Lighting
Lighting System
System
System
System
- 63 -
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?
Hazard 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
Use 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.
Summary of Contents for HFC4DA1-2C
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