Page 324 - Foton Workshop Manual - Auman EST-M

DI - 270 Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts

Failure phenomenon Phenomenon description

While turning the ignition switch to "ON" position and
Two side brake lamps not on stepping down the brake pedal, the brake lamps at two side are
not lit.
Diagnosis procedure
1. Check the fuse.

a. Ignition switch: LOCK.
b. Open the body harness fuse box cover.

c. Remove brake lamp fuse F28(10A).
Caution
Dismount the fuse with a special fuse remover. Do not pull it out directly with hands, which may
damage the fuse.

d. Check the middle fuse of brake lamp fuse F28 (10A) is
Disconnect Normal broken.

Check if the fuse is broken
Yes>replace with the same spec fuse

NO>go to Step 2.
2. Check the power circuit of brake lamp.

a. Ignition switch: LOCK.
b. Disconnect the connector B060 of body controller.
c. Ignition switch: ON.

d. Use a multimeter to measure the voltage between 1#
terminals earthing of body controller B060.
Standard voltage:

Multimeter connecting terminal Standard value

B060(1)-grounding Storage battery voltage

DI-270