Page 365 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 311

Diagnosis procedure IN
1. Check the backlight circuit of combination instrument.

a. Ignition switch: LOCK. DI
b. Disconnect the connector B015 of combination instrument.
c. Ignition switch: ON. EG

d. Measure the voltage between the combination instrument
connector B015 terminal 21 and the ground with the TR
multimeter in voltage gear.
Standard voltage: AX

Multimeter connecting terminal Standard value
FR
B0015(21)-grounding Storage battery voltage

ST
Check if the result is ok?

Yes>go to Step 2. BR
NO>repair or replace the harness.
2. Check the combination switch BW

Caution
If the combination instrument is broken, normally non-professional personnel cannot check and repair EL
precisely. At present often using the substitution judgment method for service.

a. Replace with a new or normal combination instrument.

b. Connect the circuit, restart the ignition switch and check if the failure is fixed.
Caution

The combination instrument for replacement must be the same specification as previously used.
Is the test result ok?
Yes>repair or replace the combination instrument.

Caution
Internal combination instrument service needs professional personnel. Others shall not dismount
anything.

NO>retest the above steps.

DI-311