CHARGING SYSTEM WARNING LIGHT ILLUMINATED/MESSAGE RELATED TO CHARGING SYSTEM MALFUNCTION INDICATED IN DISPLAY [SKYACTIV-D]

id0103s5107700

Troubleshooting item	CHARGING SYSTEM WARNING LIGHT ILLUMINATED/MESSAGE RELATED TO CHARGING SYSTEM MALFUNCTION INDICATED IN DISPLAY
Description	•  Charging system warning light illuminated. •  Message related to charging system malfunction indicated in display.
Possible cause	•  Erratic signal to PCM ―  Generator or related circuit malfunction •  Battery malfunction •  Generator malfunction •  Instrument cluster malfunction
System wiring diagram	•  Not applicable
Connector diagram	•  Not applicable

Diagnostic Procedure

Step	Inspection	Results	Action
1	VERIFY PCM DTC •  Retrieve PCM DTCs using the M-MDS. (See DTC INSPECTION.) •  Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [PCM (SKYACTIV-D)].)
		No	Go to the next step.
2	VERIFY CURRENT INPUT SIGNAL STATUS Caution •  While performing this step, always operate the vehicle in a safe and lawful manner. •  When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later. •  Access the following PIDs using the M-MDS: (See PID/DATA MONITOR INSPECTION.) PCM ―  ALT_VOLT_OUT_ACT •  Do the PIDs indicate the correct values under the trouble condition? (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-D)].)	Yes	Inspect the related sensor and circuit. •  If there is any malfunction: ―  Repair or replace the malfunctioning part according to the inspection results, then go to repair completion verification. •  If there is no malfunction: ―  Go to the next step.
		No	Go to the next step.
3	INSPECT BATTERY FOR MALFUNCTION •  Inspect the applicable part. (See BATTERY INSPECTION [(E)].) •  Is the part normal?	Yes	Go to the next step.
		No	Recharge or replace the battery, then go to repair completion verification. (See BATTERY RECHARGING [(E)].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
4	INSPECT GENERATOR FOR MALFUNCTION •  Inspect the applicable part. (See GENERATOR INSPECTION [SKYACTIV-D 1.8].) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
5	INSPECT INSTRUMENT CLUSTER FOR MALFUNCTION •  Inspect the applicable part. (See INSTRUMENT CLUSTER INSPECTION [(E)].) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED •  Install/connect the part removed/disconnected during the troubleshooting procedure. •  Has the malfunction symptom been eliminated?	Yes	Complete the symptom troubleshooting. (Explain contents of repair to customer)
		No	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, go to the next step.
Repair completion verification 2	VERIFY IF MALFUNCTION IS CAUSED BY NOT PERFORMING PCM REPROGRAMMING •  Verify repair information and verify that there is a new calibration in the PCM. •  Is there a new calibration in the PCM?	Yes	Perform the PCM reprogramming and verify if the malfunction symptom was corrected. •  If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
		No	Replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)