TM 10-3930-675-24-1
INTERNAL TRANSMISSION CLUTCH SLIPPAGE FAILURE TROUBLESHOOTING
THIS WORK PACKAGE COVERS
Error Code 781 - Internal Transmission Failure at
Error Code 777 - Internal Transmission Failure at
Clutch KV
Clutch K1
Error Code 778 - Internal Transmission Failure at
Error Code 782 - Internal Transmission Failure at
Clutch K2
Clutch KR
Error Code 779 - Internal Transmission Failure at
Error Code 845 - Clutch Failure Detected During Cali-
Clutch K3
bration
Error Code 780 - Internal Transmission Failure at
Clutch K4
Error Code 846 - Clutch Adjustment Data Lost
INITIAL SETUP
References
TM 10-3930-675-10
ECU Transmission (A34648.0200) (WP 0048 00-
12)
NOTE
Refer to WP 0004 00 for additional troubleshooting guidance, information, and illustrations that
locate critical components.
Table 1. Error Code 777 - Internal Transmission Failure at Clutch K1 Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 777 - Internal Transmission Failure 1. Check transmission oil level.
a. Consult
the
Lubrication
at Clutch K1.
Instructions for the proper oil
type and filling procedure (WP
0050 00 or TM 10-3930-675-
10-1).
b. Fill transmission to proper oil
level.
2. Inspect
all
electrical a. Connect
disconnected
connections
on
the
electrical connectors.
transmission for loose or b. Notify
Sustainment
unplugged connectors.
Maintenance to replace engine
and transmission wiring
harness.
troubleshooting a. Correct any problems found
3. Perform
during the error code
procedure for error codes 655,
troubleshooting procedures.
656, 658, and 659.
b. Replace
transmission
assembly (WP 0224 00).
