Transmission fault codes

Transmission fault codes

40001344.00-en

Code Meaning Possible repair steps

4000 yellow Unknown fault, TCU 4113 red Logic error in FNR switch 1 4114 red Logic error in direction selection signal Shut off the engine. Check the cable between TCU and FNR switch. Check the connector between TCU and FNR switch. Check FNR switch signal combinations.

4116 yellow Logic error in parking brake status Check cable between TCU and contact 6 in connector 2 of instrument cluster, check parking brake switch.

4117 red Logic error in direction selection signal

4119 yellow Short circuit to ground at vibration damper 4120 yellow Short circuit to battery voltage at vibration damper

4121 yellow Circuit open at vibration damper Shut off the engine. Check the cable between TCU and FNR switch. Check the connector between TCU and FNR switch. Check FNR switch signal combinations. Check cable between TCU and vibration damping relay. Check connector between TCU and vibration damping relay. Check vibration damping relay.

4133 yellow Short circuit to battery voltage or circuit open to temperature sensor

4134 yellow Short circuit to ground at temperature sensor

4135 yellow

4136 yellow Short circuit to battery voltage or circuit open at converter output temperature sensor Short circuit to ground at converter output temperature sensor

4137 yellow Short circuit to battery voltage or circuit open at parking brake sensor input

4145 yellow Short circuit to battery voltage, or circuit open at engine speed sensor

4146 yellow Short circuit to ground at engine speed sensor Check connector. Check temperature sensor.

Check cable between TCU and sensor. Check connector. Check temperature sensor.

Check cable between TCU and sensor. Check connector. Check parking brake sensor. Check parking brake fuse. Check parking brake relay. Parking brake solenoid switch.

OPERATING INSTRUCTIONS F106.7/F106.7A/F156.7/F156.7A

Code Meaning Possible repair steps

4147 yellow Logic error at engine speed sensor input Check cable between TCU and sensor. Check connector. Check speed sensor. NOTE: This fault code is reset after TCU is started. It is reset even if the signal is above the zero speed limit. Check parking brake solenoid switch.

4148 yellow Short circuit to battery voltage, or circuit open at turbine speed sensor

4149 yellow Short circuit to ground at turbine speed sensor input Check cable between TCU and sensor. Check connector. Check speed sensor.

4150 yellow Logic error at turbine speed sensor input Check cable between TCU and sensor. Check connector. Check speed sensor. NOTE: This fault code is reset after TCU is started.

4151 yellow

Short circuit to battery voltage, or circuit open at intermediate speed sensor 4152 yellow Short circuit to ground at intermediate speed sensor

4153 yellow Logic error in intermediate speed sensor Check cable between TCU and sensor. Check connector. Check speed sensor.

Check cable between TCU and sensor. Check connector. Check speed sensor. NOTE: This fault code is reset after TCU is started.

4154 yellow Short circuit to battery voltage or circuit open at output speed sensor

4155 yellow Short circuit to ground at output speed sensor

4156 yellow Logic error at output speed sensor Check cable between TCU and sensor. Check connector. Check the output speed sensor.

Check cable between TCU and sensor. Check connector. Check speed sensor. NOTE:This fault code is reset after TCU is started.

OPERATING INSTRUCTIONS F106.7/F106.7A/F156.7/F156.7A

Code Meaning Possible repair steps

4158 yellow Output speed = zero, does not match other speeds Check sensor signal from output speed sensor. Check output speed sensor connector. Check cable between TCU and sensor. NOTE: This fault code is reset after TCU is started.

4160 yellow Invalid gear range limit (CAN) Check combination instrument controller. Check CAN bus cable. Check cable to combination instrument controller.

4185 yellow Invalid test mode signal (CAN) 4186 yellow Invalid parking brake status (CAN) Check combination instrument controller. Check CAN bus cable. Check cable to combination instrument controller.