DTC B1160 Key code not programmed
caution
When DTC B1160 is set, be sure to diagnose the CAN bus line.
Before replacing ECU, ensure that the communication circuit is normal.
DIAGNOSTIC FUNCTION
KOS&OSS-ECU sets DTC B1160 when the key code is not written.
note
When KOS&OSS-ECU is new, DTC B1160 is set.
JUDGMENT CRITERIA
Judgment Criterion
Key code has the initial value (not written)
PROBABLE CAUSES
Malfunction of the CAN bus line
Key code not written
Malfunction of KOS&OSS-ECU
DIAGNOSIS
1.
Using scan tool (M.U.T.-IIISE), diagnose the CAN bus line
2.
VIN registration
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