Detailed Flow

Perform the preliminary inspection. Refer to INSPECTION PROCEDURE .

GO TO STEP 2  .

Perform self diagnosis with CONSULT

Is any DTC detected?

YES 

• ECM: Refer to DTC INDEX .
• BCM: refer to DTC INDEX .

NO 

GO TO STEP 3. 

Turn the ignition switch OFF, and disconnect the battery current sensor connector to stop the operation of the power generation voltage variable control. [However, DTC (P1550 - P1554) of the engine might remain. After finishing the inspection, connect the battery current sensor connector and erase the self-diagnosis results history of the engine using CONSULT.]

GO TO STEP 4  .

Turn the ignition switch ON.

Does the charge warning lamp turn ON?

YES 

GO TO STEP 5  .

NO 

GO TO STEP   10  .

Start the engine and run it at idle.

Does the charge warning lamp turn OFF?

YES 

GO TO STEP 6  .

NO 

GO TO STEP 7  .

Increase and maintain the engine speed at 2, 500 RPM.

Does the charge warning lamp turn ON?

YES 

GO TO STEP 8. 

NO 

INSPECTION END

Check "L" terminal circuit (short). Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES 

GO TO STEP 8. 

NO 

Repair as needed.

Start engine. With engine running at 2, 500 RPM, measure "B" terminal voltage.

What voltage does the measurement result show?

Less than 13.0 V 

GO TO STEP 9  .

More than 16.0 V 

Replace alternator. Refer to REMOVAL AND INSTALLATION .

Check "B" terminal circuit. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES 

Replace alternator. Refer to REMOVAL AND INSTALLATION .

NO 

Repair as needed.

1. Disconnect alternator connector and apply ground to "L" terminal.
2. Turn the ignition switch ON.

Does the charge warning lamp turn ON?

YES 

Replace alternator. Refer to REMOVAL AND INSTALLATION .

NO 

GO TO STEP 11  .

Check "L" terminal circuit (open). Refer to DIAGNOSIS PROCEDURE .

Repair as needed.