Basic Inspection

When the malfunction is not confirmed in the DTC check, troubleshooting should be carried out in all the possible circuits considered as causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location causing the problem can be found quickly and efficiently. Therefore, using this check is essential in the engine troubleshooting.

1. CHECK BATTERY POSITIVE VOLTAGE 
   NOTE: Carry out this check with the engine stopped and ignition switch OFF.
   BATTERY POSITIVE VOLTAGE CHECKING REFERENCE
   
   

   	OK	NG
   Voltage	11 V or more	Less than 11 V

   NG: CHARGE OR REPLACE BATTERY 

   OK: Go To Next Step 

2. CHECK IF ENGINE IS CRANKED 

   NG: PROCEED TO  PROBLEM SYMPTOMS TABLE  

   OK: Go To Next Step 

3. CHECK IF ENGINE STARTS 

   NG: GO TO STEP   7 

   OK: Go To Next Step 

4. CHECK AIR FILER 
   1. Visually check if the air filter is not contaminated with dirt or oil.

   NG: REPLACE AIR FILTER 

   OK: Go To Next Step 

5. CHECK IDLE SPEED (See  ADJUSTMENT  )  

   NG: PROCEED TO PROBLEM SYMPTOMS TABLE ON  PROBLEM SYMPTOMS TABLE  

   OK: Go To Next Step 

6. CHECK IGNITION TIMING (See  ADJUSTMENT  )  

   NG: PROCEED TO  ON-VEHICLE INSPECTION  AND CONTINUE TO TROUBLESHOOT 

   OK: PROCEED TO  PROBLEM SYMPTOMS TABLE  

7. CHECK FUEL PRESSURE (See  ON-VEHICLE INSPECTION  ) 

   NG: PROCEED TO  ON-VEHICLE INSPECTION  AND CONTINUE TO TROUBLESHOOT 

   OK: Go To Next Step 

8. CHECK FOR SPARK (See  ON-VEHICLE INSPECTION  ) 

   NG: PROCEED TO  ON-VEHICLE INSPECTION  AND CONTINUE TO TROUBLESHOOT 

   OK: PROCEED TO  PROBLEM SYMPTOMS TABLE