TM 5-3805-296-23-2
0137
Table 1. No Power From 12 Volt Power Converter or 12 Volt Auxiliary Port.
0137
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
No Power From 12 Volt
Power Converter or 12 Volt
Always inspect harness connectors that are involved in the circuit. Poor
Auxiliary Port
connections can often be the cause of a problem in an electrical circuit.
Verify that all connections in the circuit are clean and secure and that all
connections are in good condition. If a problem with the connection is
found, correct the problem and verify that this malfunction or diagnostic
code is active before performing this procedure.
Perform open or short-circuit test at each harness connection to identify
the correct harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
Test Step 1. Test for Open Fuse.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Remove fuse F17 from circuit
breaker panel
(TM 5-3805-296-10).
3. Remove fuse F32 from circuit
breaker panel
(TM 5-3805-296-10).
4. Using digital multimeter
Continuity on Both Fuses Proceed
(WP 0540), measure resistance as
to Test Step 2.
follows:
No Continuity on One or Both Fuses
a. Between terminals of fuse
Replace fuse(s) with no continuity/
F17.
install fuse with continuity on circuit
breaker panel (TM 5-3805-296-10).
b. Between terminals of fuse
Proceed to Test Step 8.
F32.
Test Step 2. Test Main Relay Supply
Voltage at Circuit Breaker Panel.
1. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
Voltage 18 to 26 V Proceed step 3.
2. Using digital multimeter
Voltage Less Than 18 V Replace
(WP 0540), test for voltage
between fuse F17 left terminal
fuse panel wiring harness (WP 0515).
(Figure 1) and ground.
Proceed to Test Step 16.
Voltage 18 to 26 V Proceed Test
3. Using digital multimeter
Step 3.
(WP 0540), test for voltage
Voltage Less Than 18 V Replace
between fuse F32 right terminal
fuse panel wiring harness (WP 0515).
(Figure 1) and ground.
Proceed to Test Step 16.
