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ERROR CODE and TROUBLESHOOTING
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6.2.17 Circuit related service call
[C5A0] SRAM board not connected (LGC board)
[C5A1] SRAM board data abnormality (LGC board)
(1) Check if the SRAM board has been installed properly.
(2) Check if the conductor patterns on the SRAM board is short circuited or open circuited.
(3) Check if the battery on the SRAM board has not run out.
(4) Replace the SRAM board.
(5) Replace the LGC board.
[C900] Connection error between the SYS board and the LGC board
(1) Check if the connector CN423, CN424 on the IMG board and the connector CN319, CN320 on
the LGC board are completely inserted.
(2) Check if the connector pin between the IMG board (connector CN423, CN424) and the LGC
board (connector CN319, CN320) is disconnected.
(3) Check if the connector CN422 on the IMG board and the connector CN135 on the SYS board are
completely inserted.
(4) Check if the connector pin between the IMG board (connector CN422) and the SYS board
(connector CN135) is disconnected.
(5) Check if the conductor patterns on the IMG board, LGC board and SYS board are short circuited
or open circuited.
(6) Replace the LGC board if no problem is found in steps from (1) to (5) above.
(7) If the problem is not corrected with the replacement of the LGC board, reinstall the removed LGC
board and replace the IMG board.
(8) If the problem is still not corrected with the replacement of the IMG board, reinstall the removed
IMG board and replace the SYS board.
[C940] Engine-CPU abnormality
[C962] LGC board ID abnormality
(1) Check if the connector CN304 on the LGC board is completely inserted or not disconnected.
(2) Check if the connectors CN423 and CN424 on the IMG board and the connectors CN319 and
CN320 on the LGC board are completely inserted.
(3) Check if the connector pin between the IMG board (connector CN423, CN424) and the LGC
board (connector CN319, CN320) is disconnected.
(4) Check if the connector CN426 on the IMG board is completely inserted or not disconnected.
(5) Check if the conductor patterns on the IMG board and the LGC board are short circuited or open
circuited.
(6) Replace the LGC board if no problem is found in steps from (1) to (5) above.
(7) If the problem is not corrected with the replacement of the LGC board, reinstall the removed LGC
board and replace the IMG board.
(8) If the problem is still not corrected with the replacement of the IMG board, reinstall it and ask a
specialist to repair it. (Abnormal ID)
Does service call still occur even after turning OFF the main switch then back ON?
È NO Æ Leave it for a while and see how.
YES
1. Check if the conductor pattern between the Engine-CPU and FROM, SRAM is short
circuited or open circuited.
2. Replace the LGC board if it frequently occurs.
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