TM 5-3805-293-23-1
0018
Table 1. Transmission Code (1326-02 to 1408-13) Troubleshooting Procedures - Continued.
CDI FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
1407-05 Transmission Sole-
System Response:
noid 7 Current 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
connection 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 for Open Trans-
mission Clutch Modulating Valve.
1. Connect MSD (WP 0006). Select
Trans/chassis 120M and verify
1407-05 is active.
2. Turn ignition switch and battery
disconnect switch to the OFF
position.
3. Disconnect the transmission har-
ness connector T-C3 (WP 0009,
Figure 180) from transmission
clutch modulating valve 7 (WP
0009, Figure 181) (WP 0155).
4. Connect jumper wire between T-
C3 terminal 1 and T-C9 terminal 2
(WP 0009, Figure 180).
5. Turn battery disconnect switch
and ignition switch to the ON posi-
tion.
6. Check for Active code 1407-05 or
Code 1407-05 Remains Active - Pro-
1407-06 in Trans/chassis 120M
ceed to Test Step 2.
Code 1407-05 Becomes Inactive
and 1407-06 Becomes Active -
Remove jumper wire from T-C3 termi-
nal 1 and terminal 2 (WP 0009, Figure
180).
Replace transmission clutch modulat-
ing valve 7 (WP 0155).
Proceed to step 7.
