Basic Inspection

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

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

   Result	Proceed To
   11V or more	OK
   Below 11V	NG

   NG: CHARGE OR REPLACE BATTERY 

   OK: Go to next step. 

2. CHECK WHETHER ENGINE WILL CRANK 

   NG: PROCEED TO PROBLEM SYMPTOMS TABLE ON  PROBLEM SYMPTOMS TABLE  

   OK: Go to next step. 

3. CHECK WHETHER ENGINE STARTS 

   NG: GO TO STEP 6 

   OK: Go to next step. 

4. CHECK AIR FILTER 
   1. Visually check that the air filter is not excessively contaminated with dirt or oil.

   NG: REPLACE AIR FILTER 

   OK: Go to next step. 

5. CHECK IDLING SPEED (See  ENGINE (1ZZ-FE)  ) 

   NG: PROCEED TO PROBLEM SYMPTOMS TABLE ON  PROBLEM SYMPTOMS TABLE  

   OK: Go to next step. 

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

   NG: PROCEED TO  ON-VEHICLE INSPECTION  AND CONTINUE TROUBLESHOOTING 

   OK: Go to next step. 

7. CHECK FOR SPARK (See  IGNITION SYSTEM (1ZZ-FE)  ) 

NG: PROCEED TO  IGNITION SYSTEM (1ZZ-FE)  AND CONTINUE TROUBLESHOOTING 

OK: PROCEED TO PROBLEM SYMPTOMS TABLE ON  PROBLEM SYMPTOMS TABLE