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DTC C1045:00 [PCM (SKYACTIV-X)]

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Outline

System malfunction location	TCS/DSC control system Electronically controlled brake unit (internal malfunction) Configuration data Power supply (low input) Power supply system
Detection condition	•  The PCM detects that the electronically controlled brake unit stores the following DTCs. ―  C006B:00 ―  C05C3:49 ―  C1043:41 ―  C1043:45 ―  C1044:46 ―  C1045:48 ―  C1045:49 ―  C1046:49 ―  C1047:49 ―  C1048:47 ―  C1048:49 ―  U2101:56 ―  U2101:57 ―  U2300:52 ―  U2300:54 ―  U2300:55 ―  U2300:56 ―  U2300:64 ―  U3000:49 ―  U3003:1C ―  U3003:9A
Fail-safe	•  Inhibits the i-stop control. •  Regenerative braking control may be permitted depending on malfunction content.
Possible cause	•  DTCs are stored in the electronically controlled brake unit. Note •  If the electronically controlled brake unit stores a DTC, the PCM stores the same DTC or similar. •  If the PCM stores a DTC even though the electronically controlled brake unit does not store a DTC, clear the DTC as it was for a past malfunction, and then complete the repair.
System wiring diagram	•  Not applicable
Connector diagram	•  Not applicable

Diagnostic Procedure

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION •  Record the freeze frame data/snapshot data. Note •  Recording can be facilitated using the screen capture function of the PC.	—	Go to the next step.
2	VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY •  Verify related Service Bulletins, on-line repair information, or Service Information availability. •  Is any related Information available?	Yes	Perform repair or diagnosis according to the available information. •  If the vehicle is not repaired, go to the next step.
		No	Go to the next step.
3	VERIFY ELECTRONICALLY CONTROLLED BRAKE UNIT DTCs •  Perform the DTC inspection for the electronically controlled brake unit. (See DTC INSPECTION.) •  Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [ELECTRONICALLY CONTROLLED BRAKE UNIT].)
		No	Go to the next step.
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED •  Install/connect the part removed/disconnected during the troubleshooting procedure. •  Clear the DTC recorded in the memory. (See CLEARING DTC.) •  Replicate the vehicle conditions at the time the DTC was detected using the following procedure. ―  Perform the KOEO self test. (See DTC INSPECTION.) •  Perform the DTC inspection for the PCM. (See DTC INSPECTION.) •  Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. •  If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)
		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs DISPLAYED •  Perform the DTC inspection. (See DTC INSPECTION.) •  Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
		No	DTC troubleshooting completed.