i-stop WARNING LIGHT (AMBER) FLASHES [SKYACTIV-G]

id1103sb001900

Troubleshooting item

i-stop warning light (amber) flashes

Description

•  i-stop function is inhibited because an i-stop control system error is detected.

Possible cause

i-stop component parts malfunction

•  Detects malfunction in i-stop component part (i-stop related module detects DTC)

Without Mazda M Hybrid

―  PCM

―  Current sensor

―  Battery malfunction (deterioration)

―  Generator malfunction (part, system, control malfunction)

―  DC-DC converter

―  DSC HU/CM

―  SAS control module

―  TCM (ATX)

With Mazda M Hybrid

―  PCM

―  DC-DC converter (Mazda M Hybrid)

―  Mazda M Hybrid battery

―  Integrated starter generator (ISG) (part, system, control malfunction)

―  Electronically controlled brake unit

―  SAS control module

―  TCM

―  EPS control module

―  Body control module (BCM)

Number of times i-stop function operates exceeds assured operation amount of components (without Mazda M Hybrid)

•  Number of times engine restart exceed limit

•  Any of following parts exceeds assured operation amount:

―  Starter relay

―  Starter

System wiring diagram

•  Not applicable

Connector diagram

•  Not applicable

Troubleshooting item	i-stop warning light (amber) flashes
Description	• i-stop function is inhibited because an i-stop control system error is detected.
Possible cause	i-stop component parts malfunction • Detects malfunction in i-stop component part (i-stop related module detects DTC) Without Mazda M Hybrid ― PCM ― Current sensor ― Battery malfunction (deterioration) ― Generator malfunction (part, system, control malfunction) ― DC-DC converter ― DSC HU/CM ― SAS control module ― TCM (ATX) With Mazda M Hybrid ― PCM ― DC-DC converter (Mazda M Hybrid) ― Mazda M Hybrid battery ― Integrated starter generator (ISG) (part, system, control malfunction) ― Electronically controlled brake unit ― SAS control module ― TCM ― EPS control module ― Body control module (BCM) Number of times i-stop function operates exceeds assured operation amount of components (without Mazda M Hybrid) • Number of times engine restart exceed limit • Any of following parts exceeds assured operation amount: ― Starter relay ― Starter
System wiring diagram	• Not applicable
Connector diagram	• Not applicable

Diagnostic procedure

Step	Inspection	Results	Action
1	VERIFY DTC • Perform the DTC inspection for the following modules. (See DTC INSPECTION.) Without Mazda M Hybrid ― PCM ― DSC HU/CM ― SAS control module ― TCM (ATX) With Mazda M Hybrid ― PCM ― DC-DC converter (Mazda M Hybrid) ― Mazda M Hybrid battery ― Integrated starter generator (ISG) ― Electronically controlled brake unit ― SAS control module ― TCM ― EPS control module ― Body control module (BCM) • Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-G (E))].) (See DTC TABLE [DSC HU/CM (E)].) (See DTC TABLE [SAS CONTROL MODULE].) (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (CW6A-EL)].) (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (ET6A-EL, ET6AX-EL) (E)].) (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (EV6A-EL) (E)].) (See DTC TABLE [DC-DC CONVERTER (Mazda M Hybrid)].) (See DTC TABLE [Mazda M Hybrid BATTERY].) (See DTC TABLE [INTEGRATED STARTER GENERATOR (ISG)].) (See DTC TABLE [ELECTRONICALLY CONTROLLED BRAKE UNIT].) (See DTC TABLE [ELECTRIC POWER STEERING (EPS) (E)].) (See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)
1		No	Without Mazda M Hybrid: • Go to the next step. With Mazda M Hybrid: • Perform the repair completion verification 1.
2	DETERMINE IF MALFUNCTION CAUSE IS BATTERY VOLTAGE DECREASE OR OTHER • Start the engine and warm it up completely. • Idle the engine. • Access the PCM PID BATT_SOC using the M-MDS. (See PID/DATA MONITOR INSPECTION.) • Is the BATT_SOC PID value above 68%?	Yes	Go to Step 4.
2		No	Recharge the battery, then go to the next step. (See BATTERY RECHARGING [(E)].)
3	INSPECT BATTERY FOR MALFUNCTION • Inspect the applicable part. (See BATTERY INSPECTION [(E)].) • Is the part normal?	Yes	Go to the next step.
3		No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)
4	INSPECT GENERATOR FOR MALFUNCTION • Inspect the applicable part. (See GENERATOR INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].) (See GENERATOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].) • Is the part normal?	Yes	Go to the next step.
4		No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)
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)
Repair completion verification 1		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-G (WITHOUT CYLINDER DEACTIVATION (E))].) (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)
Repair completion verification 2		No	Replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].) (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)