Case IH AFX8010 Repair Manual page 1713

NOTE: The batteries must be fully charged and all connections clean and tight. Use a multimeter (DVOM) for
these tests. For battery testing and service, see the battery section in the service manual.
DO NOT use a self-powered test light for any of these tests. Use of a self-powered test light can cause
damage to components in this system.
Before performing any of the electrical tests, be sure all operating controls are in neutral or park lock
position. This will eliminate accidental movement of the machine or start-up of power driven equipment.
Test Point
1 Key Switch S-02 "ON".
Check for 12 volts at Wiper
Relay K-06 (pin 1).
2 Check for 12 volts at Wiper
Relay K-06 (pin 3).
3 Key Switch S-02 "OFF"
Check for continuity to
Ground at Wiper Relay
K-06 (pin 2).
4 Check for 12 volts at Wiper
Relay K-06 (pin 5).
5 Check for 12 volts at Wiper
Switch S-20 connector
X135 (pin 2).
BODY AND STRUCTURE - USER PLATFORM
CAUTION
WARNING
A - WIPER RELAY TEST
Good Reading
12 volts
Go to next test point.
12 volts
Go to next test point.
Less than 1 ohm.
Go to next test point.
12 volts
Go to next test point.
12 volts
If good reading, power feed
to Wiper Switch S-20 is
operating properly.
E.34 / 11
Possible Cause of Bad Reading
Open circuit 123 (OR) between Key
Switch S-02 connector X068 (pin 4) and
Wiper Relay K-06 (pin 1).
Open circuit 70 (RD) between Fuse F04
and Wiper Relay K-06 (pin 3).
Blown Fuse F04.
Open circuit 242 (BK) between Wiper
Relay K-06 (pin 2) and Ground.
Wiper Relay K-06.
Go to next test point.
Short circuit 272 (OR) between Wiper
Relay K-06 (pin 5) and Wiper Switch
S-20 connector X135 (pin 2).
A short will cause Fuse F04 to blow.
Open or short circuit 272 (OR) between
Wiper Relay K-06 (pin 5) and Wiper
Switch S-20 connector X135 (pin 2).
Check in-line connector X002 (pin 14) for
connection.