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
168-1 Electrical System
Test Step 4. Test Lower Cab Wiring
Voltage Low - Continued
Harness for High Resistance or
Open.
1. Remove right lower cab access
panels (WP 0347).
2. Disconnect connector EN-C2
(WP 0012, Figure 12) from
connector C-C18 (WP 0012,
Figure 13).
3. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Replace engine wiring harness
between connector C-C18
(WP 0299).
(WP 0012, Figure 13) terminal 17
Proceed to Test Step 11.
and machine ground (WP 0012,
Resistance Greater Than 5.0 Ohms
Figure 45) terminal 1.
Proceed to step 4.
4. Inspect ground connections
Dirty, Corroded, or Loose Clean and
(WP 0012, Figure 45) terminal 1
tighten as necessary.
and terminal 2 for dirt, corrosion,
Proceed to step 5.
and loose connections.
No Problem Found Replace lower
cab wiring harness (WP 0291).
Proceed to Test Step 11.
5. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Proceed to Test Step 11.
between connector C-C18
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 13) terminal 17
Replace lower cab wiring harness
and machine ground (WP 0012,
(WP 0291).
Figure 45) terminal 1.
Proceed to Test Step 11.
Test Step 5. Test Connection at Main
Fuse.
1. Remove left engine access panel
(WP 0350).
2. Pull back rubber boots covering
terminals 1, 3, 4, 7, and 10 through
13 (WP 0012, Figure 44).
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
Voltage 18 to 26 V Proceed to Test
4. Using digital multimeter
Step 6.
(WP 0174), test for voltage
between main fuse right terminal 3
Voltage Less Than 18 V Proceed to
(WP 0012, Figure 44) and ground.
step 5.
0052-5
