TM 10-3930-675-24-1
ECU-TO-ECU COMMUNICATIONS TROUBLESHOOTING - CONTINUED
0014 00
Table 8. Error Code 111 - Communication Failure Between Display ECU (795) and Transmission ECU (793)
Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 111 - Communication Failure 1. Enter "EXTRA FUNC" 9(13) Should have a "1" next to "RX
Between Display ECU (795) and Transmission
in the diagnostic menu.
793 GEARBOX".
ECU (793).
If there is a "0", continue with
step 2.
2. Check transmission ECU Replace damaged connector or
(793) for loose or damaged ECU (793) (WP 0080 00).
connectors.
3. Check ECU (793) pins 25 and Repair any loose or missing
26 for loose connectors.
connectors (WP 0113 00).
4. Inspect jumpers between a. If continuity is not present,
terminal connectors at X179.
repair or replace damaged
Check continuity between
wires or connectors (WP 0113
(793) pin 25 and X179 pin H,
00).
and between (793) pin 26 and b. Replace missing or damaged
X179 pin L (WP 0048 00-3).
5. Check continuity between If continuity is not present, repair
X179 pin L and X177 pin 8, or replace damaged wires or
and between X179 pin H and connectors (WP 0113 00).
X177 pin 7 (WP 0048 00-3).
6. Check continuity between If continuity is not present, repair
X177 pin 8 and X160 pin 8, or replace damaged wires or
and between X177 pin 7 and connectors (WP 0113 00).
X160 pin 7 (WP 0048 00-3).
7. Check continuity between If continuity is not present, repair
X160 pin 8 and X152 pin 8, or replace damaged wires or
and between X160 pin 7 and connectors (WP 0113 00).
X152 pin 7 (WP 0048 00-3).
8. Access display ECU (795) a. If continuity is not present,
inside driver's control panel
repair or replace damaged
(WP 0081 00). Check
wires or connectors (WP 0113
continuity between (795) pin 6
00).
and X152 pin 7, and between b. If continuity is present, replace
(795) pin 5 and X152 pin 8
ECU (793) (WP 0080 00).
(WP 0048 00-2).
c. Replace ECU (795) (WP 0080
00).
0014 00-9
