TM 5-3805-296-23-2
0100
Table 1. 0821 Display Power Supply Diagnostic Codes Continued.
0100
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
3. Turn battery disconnect switch and
0821-04 Display Power
ignition switch to ON position
Supply Voltage Below
(TM 5-3805-296-10).
Normal Continued
4. At MSD, check for active
821-4 Display Power Supply Voltage
Below Normal Becomes Inactive
diagnostic code 821-4 Display
Power Supply Voltage Below
Replace quad gauge display module
Normal (WP 0008).
(WP 0506).
Proceed to Test Step 4.
821-4 Display Power Supply Voltage
Below Normal Remains Active
Proceed to Test Step 3.
Test Step 3. Test for Shorted Dash
Panel Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Disconnect connector P-C18
(WP 0012, Figure 269) from tractor
operator monitor.
3. Using digital multimeter
Continuity Replace dash wiring
(WP 0540), test for continuity
harness (WP 0510).
between connector P-C18
Proceed to Test Step 4.
terminal 34 (WP 0012, Figure 269)
No Continuity Proceed to step 4.
and all other terminals in
connector P-C18
(WP 0012, Figure 269).
4. Using digital multimeter
Continuity Replace dash wiring
(WP 0540), test for continuity
harness (WP 0510).
between connector P-C18
Proceed to Test Step 4.
terminal 34 (WP 0012, Figure 269)
No Continuity Replace tractor
and ground.
operator monitor (WP 0506).
Proceed to Test Step 4.
Test Step 4. Verify Malfunction is
Resolved.
1. Ensure all harness connectors are
connected.
2. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
3. At MSD, check for active
821-4 Display Power Supply Voltage
diagnostic codes (WP 0008).
Below Normal Becomes Inactive
Proceed to step 4.
821-4 Display Power Supply Voltage
Below Normal Remains Active
Repeat troubleshooting from the
beginning.
0100-10
