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Page Title:
Test Step 5. Check the Switch Circuit |
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 395
TM 9-2320-312-24-2
Troubleshooting Section
Result 9
Troubleshooting, "Cruise Control Switch Circuit -
Test"
Repair: Perform the following diagnostic
procedure:
STOP.
Result 3
Troubleshooting, "Cruise Control Switch Circuit
- Test".
Repair: Perform the following diagnostic
procedure:
STOP.
Test Step 5. Check the Switch Circuit.
Troubleshooting, "Powertrain Data Link Circuit -
Test"
Table 200
STOP.
Table for Status of Service Brake Pedal
Position (Switch 2)
Result 4
Condition of Switch
Switch
Circuit
Circuit
Status
Repair: Perform the following diagnostic
procedure:
Terminal 64 is Open.
ON
Open
Terminal 64 connected
Troubleshooting, "Clutch Pedal Position Switch
OFF
Closed
to terminal 5.
Circuit - Test"
A. Turn the ignition key switch to the OFF position.
STOP.
Result 5
B. Fabricate a jumper wire 100 mm (4 inch) long.
Crimp a Deutsch pin to both ends of the wires.
Repair: Perform the following diagnostic
C. Disconnect vehicle harness connector P1 from
procedures:
the ECM.
Troubleshooting, "Vehicle Speed and
D. Connect a breakout T to ECM connector J1 and
Speedometer Circuit - Test"
connect P1 to the breakout T.
STOP.
E. Install the jumper into terminal 64 (service brake
Result 6
pedal position switch 2) of the breakout T.
Connect the other end of the jumper to ECM
connector P1 terminal 52 (unswitched +battery)
Repair: Perform the following diagnostic
of the breakout T.
procedure:
F. Turn the ignition key switch to the ON position.
Troubleshooting, "PTO Switch Circuit - Test"
G. Connect an electronic service tool to the cab
STOP.
data link connector.
Result 7
H. Access the electronic service tool status screen.
Repair: Perform the following diagnostic
I. While the status of the service brake pedal
procedure:
position (switch 2) is being monitored on the
electronic service tool status screen slowly
Troubleshooting, "Neutral Switch Circuit - Test"
remove the jumper from terminal 52 (unswitched
+battery). Now, slowly insert the jumper into the
STOP.
terminal 52 (unswitched +battery).
Result 8
Refer to Table 200.
Repair: Perform the following diagnostic
Expected Result:
procedure:
The switch status changes per the information in
Troubleshooting, "Engine Speed/Timing Sensor
Table 200.
Circuit - Test"
STOP.
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