7 – 18 Repair Manual RRE140/160/180/200/250 © BT
Troubleshooting
Warning and error codes
T-code Valid from serial number Date Publication No.
815, 816 6051502 2008-08-21 261828-040
1:504 Major program version
incompatibility
The program versions in the MCU and CID do not match.
The MCU does not support some of the functions used by
the CID, or vice versa.
Login not permitted Check that identical versions of the software are being used
in the CID and MCU.
1:510 CAN 1 communication
error
CID CAN BOF. CAN bus error.
1:512 CAN 1 communication
error
The CID has problems sending a CAN message
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 CID.
1:514-
1:516
CAN 1 communication
error
The MCU or CID have not received a response via CAN in
70 ms.
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 CID.
1:520 Internal 5 V error The internal 5 V is outside the permitted voltage range.
Check the power supply, cables.
1:540 Key contactor interrupted
power circuit
1. Check that the wiring harness and contacts are intact
and correctly fitted.
2. Check the operation of the key contactor.
3. Replace the MCU.
1:580 Key contactor welded
1. Check that the wiring harness and contacts are intact
and correctly fitted.
2. Check the operation of the key contactor.
3. Replace the MCU.
1:581 Key contactor off
1. Check that the wiring harness and contacts are intact
and correctly fitted.
2. Check the operation of the key contactor.
3. Replace the MCU.
Code Name Description/possible causes
Event Action
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