Troubleshooting
Warning and error codes
Publication No. Date Valid from serial number T-code
261828-040 2008-08-21 6051502 815, 816
© BT Repair Manual RRE140/160/180/200/250 7 – 25
3:380 Speed sensor error Cable break/short circuit in the speed sensor.
See 3:300. Check the sensor B11 and its wiring harness.
3:385 Accelerator 1 error The voltage from the pedal is outside the permitted range,
0.25–4.75 V.
Operation not possible.
The truck is braked by the
motor brake until it stops.
Check the wiring harness, pedals and X130:17.
3:387 Brake pedal error (signal 1) The voltage from the pedal is outside the permitted range,
0.25–4.75 V.
See 3:385. Check the wiring harness, pedals and X130:4.
3:388 Brake pedal error (signal 2) The voltage from the pedal is outside the permitted range,
0.25–4.75 V.
See 3:385. Check the wiring harness, pedals and X130:18.
3:389 Brake pedal error Signals 1 and 2 from the brake pedal do not conform, differ-
ence of > 1.5 V.
See 3:385. Check the pedals and that there is no short circuit between
cables 85 and 86.
3:390 Error on the travel direc-
tion selector
The signal is outside the permitted range, 0.25–4.75 V.
See 3:385. Check X505:4, the travel direction selector and wiring har-
ness.
3:500 Unexpected error Unknown drive error.
Check that the same versions of the software are being
used in the MCU and ACT. Update to the latest version.
Report to BT.
3:520 Start-up error
3:540 Error on digital output sig-
nal 1
Output signal for parking brake short-circuited.
Check the magnetic coil with Q1 (48 V, ~32 ohms), the
electrical supply, contacts and wiring harness. Check the
output signal X131:20.
3:560 Error on digital output sig-
nal 1
Output signal for parking brake, interrupted power circuit
Check the magnetic coil with Q1 (48 V, ~32 ohms), the
electrical supply, contacts and wiring harness. Check the
output signal X131:20.
Code Name Description/possible causes
Event Action
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