Page 311 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 257

Failure phenomenon Phenomenon description IN

Ignition switch is in the "ON" gear, after pressing the front fog lamp switch, and then
DI
pressing the rear fog lamp switch, one side of the rear fog lamp is not on and the one on
Fog lamp on the side is not on
the other side is normal. Take the left rear fog lamp for example, the right rear fog lamp
is detected with the same method. EG

Diagnosis procedure
1. Check the rear fog lamp bulb TR

a. Ignition switch:LOCK.
AX
b. Check if the connectors of left and right rear fog lamps are loose or fall off.

c. Dismount the left and right rear fog lamp bulb.
FR
d. The positive and negative poles of bulb are connected to

the positive and negative poles of battery respectively.
Check if the bulb can be on. ST

BR

BW

Check if the result is ok? EL

Yes>go to Step 2.
NO>replace with the same spec bulb
2. Check the left rear fog lamp power circuit

a. Ignition switch:LOCK.
b. Disconnect the connector H012 of left rear combination lamp

c. Ignition switch: ON.

d. Take a multimeter to measure the voltage between No. 6
terminal of the left rear combination lamp connector H012
and grounding.
Standard voltage:

Multimeter connecting terminal Standard value

H012(6)- grounding Storage battery voltage

Is the test result ok?
Yes>go to Step 3.
No> Repair or replace the open harness between rear left combination lamp H012 to No. 6 terminal of
the car body controller connector B060.

DI-257