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 – 21
2:431 External + 5 V error 5 V electrical supply for external sensors is under 4.9 V.
1. Check that the cables are intact and correctly fitted.
2. Check external loads, e.g. faulty sensors, short circuits.
Disconnect them one by one.
2:432 External + 5 V error 5 V electrical supply for external sensor exceeds 5.1 V.
2:433 External + 15 V error 15 V electrical supply for external sensor is under 12 V.
1. Check that the cables are intact and correctly fitted.
2. Check external loads, e.g., faulty sensors, short circuits.
Disconnect them one by one.
2:434 External + 15 V error 15 V electrical supply for external sensor exceeds 16.5 V.
2:435 Internal + 7.5 V error 7.5 V electrical supply for internal circuits is under 7 V.
Check electrical supply to the MCU.
2:436 Internal + 7.5 V error 7.5 V electrical supply for internal circuits exceeds 8 V.
Check electrical supply to the MCU.
2:437 Frequency converter low Frequency converter voltage is under 12 V.
2:438 Frequency converter high Frequency converter voltage exceeds 62 V.
2:501 Check sum error The check sum is not correct.
2:502 General internal program
error in MCU
Program error in the MCU program.
Report to BT.
2:504 Emergency mode error The MCU and CID display different status if the truck is in
emergency driving mode.
Restart the truck.
2:505 Program calculator The program calculator is not consistent.
2:507 Truck immobile Truck set in "unusable" mode.
2:510 CAN 1 error Error on initiation of CAN 1.
1. Check that CAN 1 is intact in terms of wiring harness,
final resistance and contacts.
2. Withdraw the battery contact. Check that the resistance
between positions 3 and 4 in X41 is 54 – 66 ohms.
3. Uninstall and disconnect the CAN 1 modules, one after
the other.
Code Name Description/possible causes
Event Action
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