TM 5-3805-298-23-1
0109
Table 1. 1251 Alternator R - Terminal Diagnostic Codes - Continued.
0109
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
Voltage 11 to 32 VAC Proceed to
4. Using digital multimeter
1251-0 Alternator R Data
Test Step 3.
(WP 0174), test for AC voltage
Valid but Above Normal
between alternator terminal R stud
Operational Range -
Voltage Less Than 11 VAC Replace
and ground.
Continued
alternator (WP 0238).
Proceed to Test Step 5.
Test Step 3. Test Engine Wiring
Harness for Short to Voltage.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove right lower cab access
panels (WP 0347).
3. Disconnect connector EN-C2
(WP 0012, Figure 12) from
connector C-C18 (WP 0012,
Figure 13).
4. Using digital multimeter
Continuity Replace engine wiring
(WP 0174), test for continuity
harness (WP 0299).
between connector EN-C2
Proceed to Test Step 5.
(WP 0012, Figure 12) terminal 3
No Continuity Proceed to Test
and all other EN-C2 terminals.
Step 4.
Test Step 4. Test Lower Cab Wiring
Harness for Short to Voltage.
1. Remove transmission ECM cover
(WP 0266).
2. Disconnect connector C-C13
(WP 0012, Figure 25) from
Transmission ECM J2.
3. Using digital multimeter
Continuity Replace lower cab wiring
(WP 0174), test for continuity
harness (WP 0291).
between connector C-C13
Proceed to Test Step 5.
(WP 0012, Figure 25) terminal 14
No Continuity Proceed to step 4.
and all other C-C13 terminals.
4. Using digital multimeter
Continuity Replace lower cab wiring
(WP 0174), test for continuity
harness (WP 0291).
between connector C-C18
Proceed to Test Step 5.
(WP 0012, Figure 13) terminal 3
No Continuity Replace transmission
and all other C-C18 terminals.
ECM (WP 0266).
Proceed to Test Step 5.
Test Step 5. Verify Malfunction Is
Resolved.
1. Ensure all wiring harness
connectors are connected.
2. Install transmission ECM cover
(WP 0266).
0109-3
