Sienna FWD V6-3.3L (3MZ-FE) (2006)
Ignition Coil: Testing and Inspection
ON-VEHICLE INSPECTION
NOTE: "Cold" and "Hot" in this section mean the temperature of the coils themselves. "Cold" is from -10 degree C (14 degree F) to 50 degree C (122
degree F) and "Hot" is from 50 degree C (122 degree F) to 100 degree C (212 degree F).
1. INSPECT IGNITION COIL (WITH IGNITER) AND SPARK TEST
a. Check for DTCs. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Descriptions
NOTE: If DTC is present, perform a troubleshooting in accordance with a procedure for that DTC.
b. Check that spark occurs.
1. Remove the V-bank cover sub-assembly.
2. Remove the ignition coils (with igniter).
3. Using a 16 mm (0.63 in) plug wrench, remove the spark plugs.
4. Install the spark plugs to each ignition coil (with igniter) and connect the ignition coil connectors.
5. Disconnect the 6 injector connectors.
6. Ground the spark plugs.
7. Check if spark occurs at each spark plug while engine is being cranked.
NOTE:
-
Be sure to ground the spark plug when checking.
-
Replace the ignition coil when it is given physical impact.
-
Do not crank the engine for more than 2 seconds.
If the sparks do not occur, do the following test:
c. Perform the spark test according to the flowchart given.
1. Check connection of ignition coil with igniter connector.
2. Change it to normal ignition coil with igniter and perform spark test again.
3. Check the power supply to ignition coil with igniter.
1. Turn the ignition switch ON.
2. Check that there is battery voltage at ignition coil positive (+) terminal.