TM 5-2410-241-23-1
0021
Table 2. Chassis Troubleshooting Procedures - Continued.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
821-3 Display Power Supply
4. Disconnect instrument panel har-
Voltage Above Normal -
ness gauge cluster connector E-
Continued
C9 (WP 0018, Figure 86) from
gauge cluster (WP 0262).
5. Disconnect instrument panel har-
ness lamp gear module connector
E-C10 (WP 0018, Figure 87) from
lamp gear module (WP 0262).
6. Using digital multimeter (WP
1.
If continuity is found, replace
0296), test for continuity between
instrument panel harness (WP
pin 34 on dash monitor connector
0260). Ensure all harness con-
E-C7 (WP 0018, Figure 5) and all
nectors are reconnected. Verify
other pins in dash monitor con-
correct operation of machine (TM
nector E-C7 (WP 0018, Figure 5).
5-2410-241-10).
2.
If continuity is NOT found, pro-
ceed to step 7.
7. Connect dash monitor connector
E-C7 (WP 0018, Figure 5) on
instrument panel (WP 0262).
8. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-2410-241-10).
9. Using digital multimeter (WP
1. If 8.5 - 9.5 Volts is found, proceed
0296), measure for voltage
to step 10.
between pin 1 and 2 on instru-
2. If 8.5 - 9.5 Volts is NOT found,
ment panel harness gauge cluster
replace dash monitor ECM (WP
connector E-C9 (WP 0018, Figure
0262). Ensure all harness con-
86).
nectors are reconnected. Verify
correct operation of machine (TM
5-2410-241-10).
10. Using digital multimeter (WP
1. If 8.5 - 9.5 Volts is found, replace
0296), measure for voltage
lamp gear module and gauge
between pin 1 and 2 on instru-
cluster (WP 0262). Ensure all har-
ment panel harness lamp gear
ness connectors are reconnected.
module connector E-C10 (WP
Verify correct operation of
0018, Figure 87).
machine (TM 5-2410-241-10).
2. If 8.5 - 9.5 Volts is NOT found,
replace dash monitor ECM (WP
0262). Ensure all harness con-
nectors are reconnected. Verify
correct operation of machine (TM
5-2410-241-10).
821-4 Display Power Supply
1. Connect MSD (WP 0016). Select
1. If active 821-4 code is present,
Voltage Below Normal
CAT Monitoring System D7R
proceed to step 2.
ECM and check for Diagnostic
2. If no active codes are present,
Codes or Event Codes (WP
problem does NOT exist at this
time. Resume normal operation.