DTC U1015 FCM/LDW/AHB Parity/Toggle Bit Error
caution
Before replacing the ECU, ensure that the communication circuit is normal.
OPERATION
The ASC-ECU communicates with the FCM/LDW/AHB-ECU via CAN bus lines.
DTC SET CONDITIONS
The ASC-ECU will set the DTC when it receives an implausible signal from the FCM/LDW/AHB-ECU.
PROBABLE CAUSES
Wiring harness or connector failure of CAN bus line
Malfunction of FCM/LDW/AHB-ECU
Malfunction of ASC-ECU
DIAGNOSIS
1.
Check scan tool (M.U.T.-IIISE) CAN bus diagnostics
2.
Check scan tool (M.U.T.-IIISE) other system DTC <FCM/LDW/AHB-ECU>
3.
Check whether the DTC is set again.
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