TM 10-3930-675-24-1
TROUBLESHOOTING INTRODUCTION - CONTINUED
0004 00
DIAG GEARBOX
6(12)
Signals from two temperature sensors in the
transmission to ECU 793.
OIL TEMP
0GrC
Normal = 80 to 90C (175 to 195F)
OIL TEMP SUMP
0GrC
DIAG GEARBOX
7(12)
Signals from ECU 793 to transmission proportional
ACTUAL DIRECTION:
FORWARD
0
1 = Engaged, 0 = Disengaged
NEUTRAL
1
REVERSE (REVE. LAMP)
0
DIAG GEARBOX
8(12)
Actual gear is the signals from the ECU 793 to the
ACTUAL GEAR
0
Signal from under cab proximity switch to ECU 793.
1 = Cab in transport position
LIMIT TO 1ST GEAR
0
0 = Cab in operational position
0 = 2WD
1 = 4WD
0
Signal from driveshaft connection switch in the
transmission to ECU 793.
DIAG GEARBOX
9(12)
Normal: No faults detected.
Substitute Clutch Control: Minor fault detected.
NORMAL
1
Transmission controlled by time controlled and fix
SUBST. CLUTCH CONT.
0
ramp shifts.
LIMP HOME
0
Limp home: Fault that limits control of shifting.
Usually limited to one gear and/or direction. Shifts to
neutral if out of controlled limits during this mode.
0004 00-19