TM 5-2410-240-23-1
0021
Table 2. Cab Troubleshooting With Codes. - Continued.
0021
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
0779-03 A/C Recirc Temp Sensor
15. Using digital multimeter, test
No Continuity - Replace platform
Voltage Above Normal - Continued
for continuity (WP 0283)
wiring harness (WP 0150, WP
between harness connector
0155). Ensure all harness connec-
PL-C3 (WP 0018, Figure 216)
tors are reconnected. Verify proper
terminal 26 and harness con-
operation of machine (TM 5-2410-
nector PL-C4 (WP 0018,
240-10).
Figure 217) terminal 21.
Continuity - Replace machine
ECM (WP 0147, WP 0149).
Ensure all harness connectors are
reconnected. Verify proper opera-
tion of machine (TM 5-2410-240-
10).
N OT E
0779-04 A/C Recirc Temp Sensor
Voltage Below Normal
Always inspect harness connectors that are involved in circuit.
Poor connections can often be the cause of an electrical circuit
problem. Verify that all connections in the circuit are clean and
secure, and connections are in good condition. If a problem with
a connection is found, correct problem and verify diagnostic code
is active before performing this procedure.
Tag wiring harnesses to aid installation.
Perform this test only if condition is active.
1. Turn ignition switch and bat-
tery disconnect switch to OFF
position (TM 5-2410-240-10).
2. Disconnect harness connec-
tor C-C57 (WP 0018, Figure
40) from A/C recirculation tem-
perature sensor.
3. Turn battery disconnect switch
and ignition switch to ON posi-
tion (TM 5-2410-240-10).
N OT E
Wait at least 30 seconds in order for diagnostic codes to become
active.
4. Check for active diagnostic
0779-04 Remains Active - Pro-
codes (WP 0013).
ceed to step 5.
0779-03 Becomes Active -
Replace A/C temperature sensor
(WP 0251). Ensure all harness
connectors are reconnected. Verify
proper operation of machine (TM
5-2410-240-10).
5. Turn ignition switch and bat-
tery disconnect switch to OFF
position (TM 5-2410-240-10).
