TM 10-3930-675-24-1
ECU-TO-ECU COMMUNICATIONS TROUBLESHOOTING - CONTINUED
0014 00
Table 9. Error Code 112 - Communication Failure Between Display ECU (795) and Engine ECU (794)
Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 112 - Communication Failure
6. Inspect jumpers between a. If continuity is not present,
Between Display ECU (795) and Engine ECU
terminal connectors at X179.
repair or replace damaged
(794) - Continued.
Check continuity between
wires or connectors (WP 0113
(794) OEM pin 37 and X179
00).
pin L, and between (794) OEM b. Replace missing or damaged
pin 46 and X179 pin H (WP
10).
7. 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).
8. 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).
9. 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).
10.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 (794) (WP 0080 00).
(WP 0048 00-2).
c. Replace ECU (795) (WP 0080
00).
0014 00-11
