Scania RET fault codes
All 79 Scania RET (Retarder) diagnostic trouble codes, with meaning, causes and how to fix them.
Control units:
OPC4 (RET)OPC5 (RET2)
Showing 1–60 of 79 codes
- 1hex 0001 Control unit
- 2hex 0002 Control unit
- 3hex 0003 Control unit
- 4hex 0004 Control unit
- 5hex 0005 Control unit
- 6hex 0006 Control unit
- 7hex 0007 Control unit
- 8hex 0008 Control unit
- 9hex 0009 Control unit
- 11hex 000B Control unit
- 12hex 000C Control unit
- 13hex 000D Control unit
- 14hex 000E Control unit
- 15hex 000F Control unit
- 16hex 0010 Control unit
- 1000hex 03E8 Control unit
- 1010hex 03F2 Control unit
- 2000hex 07D0 Control unit
- 2010hex 07DA Control unit
- 2020hex 07E4 Control unit
- 2030hex 07EE Control unit
- 3000hex 0BB8 Control unit
- 5000hex 1388 Control unit
- 5010hex 1392 Control unit
- 5020hex 139C Control unit
- 20030hex 4E3E Control unit
- 20040hex 4E48 Oil pressure
- 20041hex 4E49 Oil pressure
- 20048hex 4E50 Control unit
- 20049hex 4E51 Control unit
- 21000hex 5208 CAN communication from engine control unit
- 21010hex 5212 Time-out in CAN communication from the coordinator
- 21020hex 521C CAN communication from BMS
- 21021hex 521D CAN communication from BMS
- 21022hex 521E ABS
- 21025hex 5221 CAN communication from AWD system
- 21026hex 5222 Transfer gearbox
- 21030hex 5226 Temperature sensor for coolant
- 21040hex 5230 Temperature sensor for retarder oil
- 22000hex 55F0 Temperature sensor for coolant
- 22001hex 55F1 Temperature sensor for coolant
- 22010hex 55FA Oil temperature sensor
- 22011hex 55FB Oil temperature sensor
- 24000hex 5DC0 Oil pressure
- 24001hex 5DC1 Oil pressure
- 27000hex 6978 Solenoid valve for activation of retarder
- 27001hex 6979 Solenoid valve for activation of retarder
- 27002hex 697A Solenoid valve for activation of retarder
- 27010hex 6982 Solenoid valve for retarder oil accumulator
- 27011hex 6983 Solenoid valve for retarder oil accumulator
- 27012hex 6984 Solenoid valve for retarder oil accumulator
- 27100hex 69DC Proportional valve
- 27101hex 69DD Proportional valve
- 27102hex 69DE Proportional valve
- 27201hex 6A41 Proportional valve
- 28673hex 7001 The synchromesh actuating arm remains immobile in the disengaged position
- 28674hex 7002 The synchromesh actuating arm is not engaged, instead it returns to the disengaged position during deactivation.
- 28675hex 7003 The synchromesh actuating arm gets stuck during engagement and does not return to the disengaged position.
- 28676hex 7004 The synchromesh actuating arm cannot be engaged.
- 28677hex 7005 The synchromesh actuating arm is disengaged when the solenoid valve is activated