Symptom-To-Fru Index; Numeric Error Codes - IBM YhinkPad T460 Hardware Maintenance Manual

Symptom-to-FRU index

This section contains following information:
• "Numeric error codes" on page 35
• "Error messages" on page 37
• "Beep symptoms" on page 37
• "No-beep symptoms" on page 37
• "LCD-related symptoms" on page 38
• "Intermittent problems" on page 38
• "Undetermined problems" on page 38
The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most
likely cause is listed first, in boldface type.
Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or
action, in sequence." If replacing a FRU does not solve the problem, put the original part back in the
computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular servicing, what FRUs are likely to need to be
replaced next.
A numeric error is displayed for each error detected in POST or system operation. In the displays, n can
be any number.
If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not
described there, go to "Intermittent problems" on page 38.
Note: For a device not supported by diagnostic codes in the ThinkPad notebook computers, see the
manual for that device.

Numeric error codes

Table 2. Numeric error codes
Symptom or error
0177
Bad SVP data, stop POST task—The checksum of the
supervisor password in the EEPROM is not correct.
0183
Bad CRC of Security Settings in EFI Variable. Enter the
ThinkPad Setup program. – The checksum of the Security
settings in the EFI Variable is not correct.
0187
EAIA data access error—The access to EEPROM is failed.
0188
Invalid RFID Serialization Information Area.
0189
Invalid RFID configuration information area—The
EEPROM checksum is not correct.
0190
Critical low-battery error
0191
System Security—Invalid Remote Change requested.
FRU or action, in sequence
Replace the system board.
1. Run the ThinkPad Setup program. The settings
will be corrected automatically. Then save the
current settings by pressing F10.
2. Replace the system board.
Replace the system board.
Replace the system board.
Replace the system board.
1. Charge the battery pack.
2. Replace the battery pack.
1. Run the ThinkPad Setup program, and then save
current setting by pressing F10.
2. Replace the system board.
Chapter 4
.
Related service information
35