JAC HFC4DA1-2C - Page 273

LT
LT
LT
LT Lighting
Lighting
Lighting
Lighting System
System
System
System
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65
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Diagnosis
Diagnosis
Diagnosis
Diagnosis and
and
and
and Testing
Testing
Testing
Testing
Fault
Fault
Fault
Fault diagnosis
diagnosis
diagnosis
diagnosis
4. Ceiling lamp failed
Step Operation Yes No
1 Check if the bulb filament of ceiling lamp is burnt out. Is the filament burnt out? Go to Step 4. Go to Step 2.
2 Is the fuse blown out? Go to Step 5. Go to Step 3.
3 Connect the test lamp respectively with two terminals of contact switch (left front,
right front, left rear, right rear) and terminals of lighting switch. Does the test lamp
lighten?
Go to Step 6. Go to Step 7.
4 Replace bulb.
5 Replace fuse.
6 Replace contact switch or lighting switch.
7 Repair the circuit of poor contact.