TM-9-2320-366-20-4
M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 4 OF 5
FEBRUARY 2006
CHANGE 3
TM-9-2320-366-20-4 - Page 437 of 1558
TM 9-2320-366-20-4
Change 2
8-16.1/(8-16.2 Blank)
Table 8-2.
WTEC III Diagnostic Code List and Description
MAIN
CODE
SUB
CODE
DESCRIPTION
PERFORM TROUBLESHOOTING
TASK
13
ANY
ECU input voltage, low/high
f37
21
ANY
Throttle position sensor, failed low/high
f30
22
14
15
16
Engine speed sensor reasonableness test
Turbine speed sensor reasonableness test
Output speed sensor reasonableness test
f22
f23
f24
23
ANY
Shift selector fault
f39
24
ANY
Sump oil temperature, cold/hot
f25
25
ANY
Output speed reasonableness test, detected at 0
speed
f32
32
ANY
C3 pressure switch open
f26
33
ANY
Sump oil temperature sensor failed low/high
f25
34
ANY
Calibration compatibility or check sum fault
Replace WTEC III transmission ECU
(para 8-7).
35
ANY
Power interruption
f27 and f37. If fault persists, replace
WTEC III transmission ECU (para 8-7).
36
ANY
Hardware/software not compatible
Replace WTEC III transmission ECU
(para 8-7).
42
ANY
Short to battery, solenoid circuit
f27
44
ANY
Short to ground, solenoid circuit
f27
45
ANY
Open circuit, solenoid circuit
f27
46
ANY
Overcurrent to Solenoids
f27
51
ANY
Offgoing ratio test (during shift)
f31
52
ANY
Offgoing C3PS test (during shift)
f28
53
ANY
Offgoing speed test (during shift)
f33
54
ANY
Oncoming ratio test (after shift)
f34
55
ANY
Oncoming C3PS test (after shift)
f35
56
ANY
Range verification test
f36
57
ANY
Range verification C3PS test
f29
66
ANY
SCI (Serial Communication Interface) fault
f27.
If fault persists, replace WTEC III
transmission ECU (para 8-7).
69
27
ECU malfunction
f27. If fault persists, replace WTEC III
transmission ECU (para 8-7).
69
28
ECU malfunction
f27. If fault persists, replace WTEC III
transmission ECU (para 8-7).
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