Page 193 - Foton Workshop Manual - Auman EST-M
P. 193
Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 139
Failure phenomenon Phenomenon description IN
Close the switch, the wiper does not work Ignition switch is in the "ON" gear, wiper combination switch
DI
is off, and the wiper does not work.
Diagnosis procedure
EG
1. Check the fuse
a. Ignition switch:LOCK.
TR
b. Open the body harness fuse box cover.
c. Remove wiper motor fuse F01 (15A) and scrubbing motor fuse F10 (15A).
AX
Caution
Dismount the fuse with a special fuse remover. Do not pull it out directly with hands, which may
FR
damage the fuse.
ST
d. Check if the fuses between the wiper motor fuse F01
(15A) and the scrubbing motor fuse F10 (15A) are burnt
Disconnect Normal
BR
out.
BW
EL
Check if the fuse is broken
Yes>replace with the same spec fuse
NO>go to Step 2.
2. Detect relay
a. Ignition switch:LOCK.
b. Disconnect the scrubbing motor relay R06, wiper low-speed relay R07 and wiper high-low-speed relay R01,
and take a multimeter to detect the continuity. Take the wiper high-low-speed relay for example.
c. Take a multimeter to measure the continuity of No. 30 and
No. 87a terminal of wiper high and low speed relay.
Standard resistance:
Storage battery voltage Standard value
No.85 and No.86 terminal of relay
About 0Ω
fail to pressure
DI-139
