TM 5-3805-298-23-1
0084
Table 1. 247 J1939 Data Link Transmission Diagnostic Codes - Continued.
084
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
2. Using digital multimeter
247-9 J1939 Data Link
Resistance 110 to 130 Ohms -
(WP 0174), measure resistance
Replace CAN data link 1 resistor
Transmission Abnormal
between connector CAN data link
(WP 0012, Figure 28).
Update Rate - Continued
2 resistor (WP 0012, Figure 21)
Proceed to Test Step 8.
terminal A and terminal B.
Resistance Greater Than 130 Ohms -
Replace CAN data link 2 resistor
(WP 0012, Figure 21).
Proceed to Test Step 8.
Test Step 6. Test Engine Wiring
Harness for Short.
1. Remove right lower cab access
panels (WP 0347).
2. Disconnect connector EN-C8
(WP 0012, Figure 22) from
connector C-C19 (WP 0012,
Figure 23).
3. Disconnect connector EN-C5
(WP 0012, Figure 20) from CAN
data link 2 resistor (WP 0012,
Figure 21).
4. Using digital multimeter
Continuity - Replace engine wiring
(WP 0174), test for continuity
harness (WP 0299).
between connector EN-C1
Proceed to Test Step 8.
(WP 0012, Figure 11) terminal 20
No Continuity - Proceed to step 5.
and all other terminals in EN-C1
and ground.
5. Using digital multimeter
Continuity - Replace engine wiring
(WP 0174), test for continuity
harness (WP 0299).
between connector EN-C1
Proceed to Test Step 8.
(WP 0012, Figure 11) terminal 21
No Continuity - Proceed to Test Step 7.
and all other terminals in EN-C1
and ground.
Test Step 7. Test Lower Cab Wiring
Harness for Short.
1. Remove left lower cab access
panels (WP 0347).
2. Remove transmission ECM cover
(WP 0266).
3. Disconnect connector C-C13
(WP 0012, Figure 25) from
transmission ECM connector J2.
4. Remove instrument cluster
for access to wiring harness
connectors (WP 0252).
0084-5
