Case IH AFX8010 Repair Manual page 1119

N° Test Point
3 While holding the Key Switch in
the "IGN/ACC" position, check for
continuity between (pins 1 and 6).
4 While holding the Key Switch in
the "IGN/ACC" position, check for
continuity between (pins 1 and 4).
5 While holding the Key Switch in the
"ACC" position, check for continuity
between (pins 1 and 4).
6 While holding the Key Switch in the
"OFF" position, check for continuity
between (pin 1) and (pins 2, 4, 6).
Start control Safety switch - Testing (B.80.A.90.81 - G.40.A.20)
AFX8010
N° Test Point
1 Key Switch in "IGN" position
Measure for 12 volts at connector
X059 (Pin 1).
2 Place Neutral Switch in the CLOSED
position.
Measure for 12 volts at Neutral
Switch connector X059 (pin 3).
3 Place Neutral Switch in the OPEN
position.
Measure for 12 volts at Neutral
Switch connector X059 (pin 2).
Start control Start relay - Testing (B.80.A.90.80 - G.40.A.20)
AFX8010
N° Test Point
1 Place Key Switch in the START
position.
Measure for 12 volts at Key Switch
connector X199(pin 86).
2 Measure for 12 volts at Start Relay
(pin 30).
3 Measure for 12 volts at 12V Starter
B+ terminal.
4 Key Switch in OFF Position.
Measure resistance from Start
Relay connector X199 (pin 85) to
ground.
5 Key Switch in OFF position.
Measure for 12 volts at Start Relay
(pin 87).
POWER PRODUCTION - STARTING SYSTEM
Expected Result
Continuity
Go to test 4
Continuity
Go to test 5
Continuity
Go to test 6
No Continuity
If good reading, Key Switch is
operating normally.
Expected Result
12 volts
If good reading,
Go to test 2
12 volts
If good reading,
Go to test 3
12 volts
If good reading, Neutral Switch
functioning properly.
Expected Result
12 volts
If good reading,
Go to test 2
12 volts
If good reading,
Go to test 4
12 volts
If good reading,
Repair open in 801 (RD) circuit.
Less than 1 ohms
If good reading,
Go to test 5
12 volts
If good reading,
Start Relay is operating properly.
9677 1 27/05/2004
B.80.A / 17
Other Result (Possible Cause)
If no continuity, replace Key Switch.
If no continuity, replace Key Switch.
If no continuity, replace Key Switch.
If no continuity, replace Key Switch.
Other Result (Possible Cause)
Open circuit 300 (OR) or 108 (OR)
between fuse F-48 and Neutral
Switch connector X059 (Pin 1).
Blown fuse F-48 (Refer to Power
Distribution - Testing)
Neutral Switch
Neutral Switch
Other Result (Possible Cause)
Open circuit 092 (WH) between
Start Relay connector X199 (pin 86)
and Neutral Start Relay (pin 5).
Check in-line connectors X005 (pin
6) and X010 (pin 5) for connection.
Open circuit 801 (RD) from Start
Relay (pin 30) to 12V starter B+
terminal.
Faulty 12V Battery Switch.
Go to next test point
Open B+ circuit between 12 System
Batteries and 12 V Starter.
Faulty 12V Battery Switch.
Open circuit 800 (BK) from start
relay to ground.
Start Relay