MESSAGE RELATED TO CHARGING SYSTEM MALFUNCTION IS INDICATED ON DISPLAY

id140300001200

Troubleshooting item

Message related to charging system malfunction is indicated on display

Description

•  Displays a message related to a charging system malfunction on the center display.

•  Displays a message related to a charging system malfunction on the multi-information display.

•  Charging system warning light is turned on.

Possible cause

•  PCM malfunction

•  Battery malfunction

•  Integrated starter generator (ISG) malfunction

•  DC-DC converter (Mazda M Hybrid) malfunction

•  M Hybrid battery malfunction

•  Instrument cluster malfunction

•  Connectivity master unit (CMU) malfunction

•  BCM malfunction

•  Drive belt breakage

•  Decoupling ring tensioner malfunction

•  CKP sensor malfunction

System wiring diagram

•  Not applicable

Connector diagram

•  Not applicable

Troubleshooting item	Message related to charging system malfunction is indicated on display
Description	• Displays a message related to a charging system malfunction on the center display. • Displays a message related to a charging system malfunction on the multi-information display. • Charging system warning light is turned on.
Possible cause	• PCM malfunction • Battery malfunction • Integrated starter generator (ISG) malfunction • DC-DC converter (Mazda M Hybrid) malfunction • M Hybrid battery malfunction • Instrument cluster malfunction • Connectivity master unit (CMU) malfunction • BCM malfunction • Drive belt breakage • Decoupling ring tensioner malfunction • CKP sensor malfunction
System wiring diagram	• Not applicable
Connector diagram	• Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

VERIFY DTCs

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Is a DTC displayed?

Yes

Repair the malfunctioning part according to the applicable DTC troubleshooting.

No

Go to the next step.

2

VERIFY DISPLAY WHERE MALFUNCTION IS INDICATED

•  Inspect the display where the malfunction is indicated.

―  Instrument cluster
(See INSTRUMENT CLUSTER INSPECTION [(E)].)

―  Center display
(Refer to the diagnostic assist function in the separate Mazda Connect manual.)

•  Is the instrument cluster or center display normal?

Yes

Go to the next step.

No

Replace the instrument cluster or center display.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

(See CENTER DISPLAY REMOVAL/INSTALLATION.)

Repair completion verification

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 CAN (controller area network) 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, inspect the instrument cluster and center display.
(See CENTER DISPLAY REMOVAL/INSTALLATION.)

(Refer to the diagnostic assist function in the separate Mazda Connect manual.)

Step	Inspection	Results	Action
1	VERIFY DTCs • Perform the DTC inspection. (See DTC INSPECTION.) • Is a DTC displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting.
1		No	Go to the next step.
2	VERIFY DISPLAY WHERE MALFUNCTION IS INDICATED • Inspect the display where the malfunction is indicated. ― Instrument cluster (See INSTRUMENT CLUSTER INSPECTION [(E)].) ― Center display (Refer to the diagnostic assist function in the separate Mazda Connect manual.) • Is the instrument cluster or center display normal?	Yes	Go to the next step.
2		No	Replace the instrument cluster or center display. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.) (See CENTER DISPLAY REMOVAL/INSTALLATION.)
Repair completion verification	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.)
Repair completion verification		No	Refer to the CAN (controller area network) 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, inspect the instrument cluster and center display. (See CENTER DISPLAY REMOVAL/INSTALLATION.) (Refer to the diagnostic assist function in the separate Mazda Connect manual.)