TM 5-3805-293-23-1
0019
Table 1. Transmission Code (1471-02 to 1961-04) Troubleshooting Procedures - Continued.
CDI FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
1484-04 Inching Pedal
System Response:
Switch Voltage Below Nor-
ECM will log a diagnostic code and a
mal
warning will appear on the messenger
while the diagnostic code is Active.
N OT E
Always inspect the harness connectorsthat are involved in the circuit.
Poor connections can often be the cause of a problem in an electrical
circuit. Verify that all connections in the circuit are clean and secure,
and that all connections are in good condition. If a problem with a con-
nection is found, correct the problem and verify that this diagnostic code
is Active before performing this procedure.
Perform open or short circuit test ateach harness connection to identify
correct harness to replace.
Perform this test only if condition is Active.
Test Step 1. Test Inching Pedal
Switch.
1. Connect MSD (WP 0006), select
Trans/chassis 120M and verify
1484-04 is active.
2. Turn ignition switch and battery
disconnect switch to the OFF
position.
3. Disconnect the cab lower wiring
harness connector P-C84 (WP
0009, Figure 161) from inching
pedal switch (WP 0009, Figure
162) (WP 0290).
4. Using digital multimeter, measure
Continuity - Inching pedal switch is
resistance between inching pedal
broken, replace inching pedal switch
switch (WP 0009, Figure 70) ter-
(WP 0290).
minal 4 and terminal 2. There
Proceed to step 6.
should be no continuity.
No Continuity - Proceed to step 5.
5. With inching pedal switch
Continuity - Inching pedal switch is
engaged, Using digital multimeter,
broken, replace inching pedal switch
measure resistance between
(WP 0290).
inching pedal switch (WP 0009,
Proceed to step 6.
Figure 70) terminal 1 and terminal
No Continuity - Proceed to Test
2. There should be no continuity.
Step 2.
6. Using the MSD (WP 0006), select
1484-04 Code Active - Repeat trou-
Trans/chassis 120M and verify
bleshooting code from the beginning.
1484-04 is not active.
1484-04 Code Not Active - Trouble-
shooting complete.