Page 199 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 145

Failure phenomenon Phenomenon description IN

After starting the motor and turning off the wiper combination switch, the wiper
Wiper moving slowly DI
reciprocates slowly.

Diagnosis procedure
EG
1. Check the battery voltage

a. Measure the battery voltage with a multimeter.
TR
Voltage: About 24V

AX

FR

ST
Check if the result is ok?

Yes>go to Step 2. BR
No> Charge or replace the battery.
BW
2. Check the wiper motor assembly

a. Check the low speed function
EL
Connect the positive pole of battery to Terminal 1 of wiper

motor assembly and the negative pole to Terminal 6. Check
if the motor is running at the low speed control.

b. Check high speed function

Connect the positive pole of battery to Terminal 2 of wiper
motor assembly and the negative pole to Terminal 6. Check
if the motor is running at the high speed control.

DI-145