Page 227 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 173

Failure phenomenon Phenomenon description IN

Press the air condition switch, the compressor does not work; blowing rate switch is in
DI
The whole AC is not working the speed regulation gear but there is no wind; internal and external circulation mode can

not be switched.
Diagnosis procedure EG
1. Check the fuse
TR
a. Ignition switch:LOCK.

b. Open the instrument panel fuse box cover.
AX
c. Remove IG2 fuse F06 (30A).
Caution
FR
Dismount the fuse with a special fuse remover. Do not pull it out directly with hands, which may
damage the fuse.
ST
d. Check if the wiper IG2 fuse F06 (30A) is burnt out.

Disconnect Normal
BR

BW

EL

If the fuse is broken?

Yes> replace with the same spec fuse
NO>go to Step 2.
2. Detect IG2 relay

a. Ignition switch:LOCK. .

b. Disconnect the IG2 relay R15 check the continuity with a multimeter.

c. Take a multimeter to measure the continuity of No. 30 and

No. 87 terminal of IG2 relay R15.
Standard resistance:

Storage battery voltage Standard value

Do not apply voltage on relay 30
About 0Ω
and Terminal 87

DI-173