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 – 33
5:335-
5:336
Internal error EPS internal error
5:380 Steer sensor, error Power supply error, steer sensor 1 in the steering wheel.
See 5:300. Check the steer sensor and wiring harness.
5:381 Steer sensor, error Power supply error, steer sensor 2 in the steering wheel.
See 5:300. Check the steer sensor and wiring harness.
5:382 Steer sensor, error Abnormal speed from the steer sensor in the steering
wheel.
See 5:300. Check the pulse generator and wiring harness.
5:383 Steer sensor, error Steer sensor 1 and 2 in the steering wheel transmit different
signals
See 5:300. Check the steer sensor and wiring harness.
5:414-
5:416
CAN 2 communication
error
The MCU or EPS has not received a response via CAN in
70 ms.
The truck is braked with the
motor brake until it stops.
Check that CAN 2 is intact in terms of wiring harness, final
resistance and contacts.
5:421 Incorrect DC voltage The EPS DC voltage exceeds 78 V.
See 5:414. Check the wiring harness and fuse F64.
5:422 Short circuit
See 5:414.
5:435-
5:438
Internal error EPS internal error
5:500 Unexpected error Unknown steering error.
Check that the same versions of the software are being
used in the MCU and EPS. Update to the latest version.
Report to BT.
5:509 Unwanted steering move-
ment
The steered wheel turns in spite of no steering command
being transmitted.
Group 6 Does not apply to reach mast trucks.
Group 7 GFU warnings and errors
7:411-
7:412
CAN communication error The MCU or GFU have not received a response via CAN in
70 ms.
The truck is braked with the
motor brake until it stops.
Check that CAN 1 is intact in terms of wiring harness, final
resistance and contacts.
Code Name Description/possible causes
Event Action
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