Operating instructions
F106.6 / F106.6A / F156.6 / F156.6A
Transmission fault codes
Code
Definition
40001344.00-en
possible steps to repair 1.Check the cables from the TCU to the FNR switch.
4113
red
logical error at gear range signal
2.Check the connectors from the TCU to the FNR switch. 3.Check the FNR switch 1.Check the cables from the TCU to the FNR switch.
4114
red
logical error at direction select signal
2.Check the connectors from the TCU to the FNR switch. 3.Check the FNR switch signal combinations.
4116
yellow
logical error at parkbrake status
1.Check the cables from the TCU to the instrument cluster connector 2 pin 6. 2.Check park brake switch. 1.Check the cables from the TCU to the FNR switch.
4117
red
logical error at direction select signal 2
2.Check the connectors from the TCU to the FNR switch. 3.Check the FNR switch signal combinations.
4119
yellow
s.c. to ground at ride control
4120
yellow
s.c. to battery voltage at ride control
4121
yellow
o.c. at ride control
4133
yellow
s.c. to battery voltage or o.c. at transmission sump temperature sensor input
4134
yellow
s.c. to ground at transmission sump temperature sensor input
4135
4136
yellow
s.c. to battery voltage or o.c. at retarder / torque converter temperature sensor input
yellow
s.c. to ground at retarder / torque converter temperature sensor input
yellow
logical error at engine speed input
1.Check the cables from the TCU to the ride control relay. 2.Check the connectors from the TCU to the ride control relay. 3.Check the ride control relay. 1.Check the connectors 2.Check the temperature sensor.
1.Check the cables from TCU to the sensor. 2.Check the connectors. 3.Check the temperature sensor.
1.Check the cables from TCU to the sensor. 4137
2.Check the connectors. 3.Check the parking brake sensor.
4145 4146
143
yellow
s.c. to battery voltage or o.c. at 1.Check the parking brake fuse. turbine speed input 2.Check the parking brake relay. s.c. to ground at turbine speed 3.Check the parking brake solenoid. input
