TM 5-3805-298-23-1
0115
Table 1. 1406 Solenoid Valve 6 (First Gear) Diagnostic Codes - Continued.
0115
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
1406-6 Solenoid Valve 6
(First Gear) Current Above
Always inspect wiring harness connectors that are involved in the circuit.
Normal
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 the
connection is found, correct the problem and verify that this malfunction
or diagnostic code is active before performing this procedure.
Perform open or short-circuit test at each wiring harness connection to
identify the correct wiring harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
DIAGNOSTIC CODE SET CONDITION
Transmission ECM detects a short circuit or high current condition in the solenoid
valve 6 (first gear) circuit.
POSSIBLE CAUSE
Transmission wiring harness shorted to ground.
Lower cab wiring harness shorted to ground.
Solenoid valve 6 (first gear) faulty.
Transmission ECM.
Test Step 1. Check for Active
Diagnostic Codes.
Connect MSD (WP 0008), select
Diagnostic Code 1406-6 Active
Transmission 924H. Apply and hold
Proceed to Test Step 2.
service brake, start engine, and shift
Diagnostic Code 1406-6 Not Active
transmission into first gear forward
Troubleshooting is complete.
(TM 5-3805-298-10). Using MSD,
check for active diagnostic codes
Test Step 2. Test for Faulty Solenoid
Valve 6 (First Gear).
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove right lower cab access
panels (WP 0347).
3. Remove right engine access panel
(WP 0348).
4. Disconnect connector P-C4
(WP 0012, Figure 98) from clutch
solenoid valve 6 (first gear).
5. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).