TM 5-3805-298-23-1
0052
Table 1. 168 Electrical System Voltage Diagnostic Codes - Continued.
052
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
Voltage 18 to 26 V Proceed to Test
3. Using digital multimeter
168-1 Electrical System
Step 11.
(WP 0174), test for voltage
Voltage Low - Continued
between fuse module 1 terminal 7
Voltage Less Than 18 V Replace bus
(WP 0012, Figure 44) and ground.
bar between fuse module 2 and fuse
module 1 (WP 0263).
Proceed to Test Step 11.
Test Step 8. Test Power Connection
at Fuse Module 1 Output.
1. Using digital multimeter
Voltage 18 to 26 V Proceed to Test
(WP 0174), test for voltage
Step 9.
between fuse module 1 terminal
Voltage Less Than 18 V Proceed to
10 (WP 0012, Figure 44) and
step 2.
ground.
2. Inspect connection of fuse module
Dirty, Corroded, or Loose Clean and
1 terminal 10 (WP 0012,
tighten as necessary.
Figure 44) for dirt, corrosion, and
Proceed to step 3.
loose connections.
No Problem Found Replace auxiliary
fuse in module 1 (WP 0263).
Proceed to Test Step 11.
3. Using digital multimeter
Voltage 18 to 26 V Proceed to Test
(WP 0174), test for voltage
Step 11.
between fuse module 1 terminal
Voltage Less Than 18 V Replace
10 (WP 0012, Figure 44) and
auxiliary fuse in module 1 (WP 0263).
ground.
Proceed to Test Step 11.
Test Step 9. Test Power Connection
at Engine Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Cover terminals 1, 3, 4, 7, and 10
through 13 (WP 0012, Figure 44)
with rubber boots.
3. Remove right lower cab access
panels (WP 0347).
4. Disconnect connector EN-C2
(WP 0012, Figure 12) from
connector C-C18 (WP 0012,
Figure 13).
5. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
Voltage 18 to 26 V Proceed to step 7.
6. Using digital multimeter
(WP 0174), test for voltage
Voltage Less Than 18 V Replace
between EN-C2 (WP 0012,
engine wiring harness (WP 0299).
Figure 12) terminal 8 and ground.
Proceed to Test Step 11.
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