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
Test Step 2. Test CAN Data Link
247-9 J1939 Data Link
Circuit for Terminating Resistance.
Transmission Abnormal
Update Rate - Continued
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove right engine access panel
(WP 0348).
3. Disconnect connector EN-C1
(WP 0012, Figure 11) from engine
ECM connector J1.
4. Using digital multimeter
Resistance 50 to 70 Ohms - Proceed
(WP 0174), measure resistance
to Test Step 3.
between connector EN-C1
Resistance Greater Than 70 Ohms -
(WP 0012, Figure 11) terminal 20
Proceed to Test Step 5.
and terminal 21.
Resistance Less Than 50 Ohms -
Proceed to Test Step 6.
Test Step 3. Test Engine Wiring
Harness for High Resistance or
Open.
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. Connect jumper wire between
terminal 1 and terminal 12 of
connector EN-C8 (WP 0012,
Figure 22).
4. Using digital multimeter
Resistance 2.0 Ohms or Less -
(WP 0174), measure resistance
Proceed to Test Step 4.
between connector EN-C1
Resistance Greater Than 2.0 Ohms -
(WP 0012, Figure 11) terminal 20
Replace engine wiring harness
and terminal 21.
(WP 0299).
Proceed to Test Step 8.
0084-3