Table 8-1. WTEC II Diagnostic Code List and Description

Reading Diagnostic Codes. - TM-9-2320-366-20-40428

Table 8-1. WTEC II Diagnostic Code List and Description - Continued - TM-9-2320-366-20-40430

TM-9-2320-366-20-4 M1083 Series 5-Ton 6x6 Medium Tactical Vehicles (MTV) Manual
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Table 8-1. WTEC II Diagnostic Code List and Description

MAIN

SUB

DESCRIPTION

PERFORM TROUBLESHOOTING

CODE

TASK

ANY

ECU input voltage, low/high

f19

ANY

Throttle position sensor, failed low/high

f12

Engine speed sensor reasonableness test

Turbine speed sensor reasonableness test

Output speed sensor reasonableness or rapid

decal test

ANY

Shift selector fault

Replace WTEC II TEPSS (para 8-2).

ANY

Sump oil temperature, cold/hot

ANY

Output speed reasonableness test, detected at 0

f14

speed

ANY

C3 pressure switch open

ANY

Sump oil temperature sensor failed low/high

ANY

Calibration compatibility or check sum fault

Replace WTEC II TEPSS (para 8-2).

ANY

Power interruption

f7 and f19. If fault persists, replace

WTEC II TEPSS (para 8-2).

ANY

Hardware/software not compatible

Replace WTEC II TEPSS (para 8-2).

ANY

Open or short to ground, solenoid circuit

ANY

Short to battery, solenoid circuit

ANY

Low side driver, solenoid circuit

ANY

Short to ground, solenoid circuit

ANY

Open circuit, solenoid circuit

Offgoing ratio test (during shift), 1 to L

f13

Offgoing ratio test (during shift), 1 to 2

f13

Offgoing ratio test (during shift), 2 to 1

f13

Offgoing ratio test (during shift), 2 to 3

f13

Offgoing ratio test (during shift), 4 to 3

f13

Offgoing ratio test (during shift), 4 to 5

f13

Offgoing ratio test (during shift), 6 to 5

f13

ANY

Offgoing C3PS test (during shift)

Change 1

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