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Tacoma, Tundra 3.4L V6 & 4Runner

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove spark plugs and install spark plug on each spark plug wire. Ground spark plug against cylinder block.
    2. CAUTION: To prevent gasoline from being injected, DO NOT crank engine for longer than 5 seconds when checking for spark.
  2. Crank engine and check for spark. Spark test is based on the assumption that spark plugs are okay. If spark does not exist, check ignition coil and ignitor electrical connections. Ignitor is located at passenger's side front corner of engine compartment, near airflow meter and air cleaner assembly. If electrical connections are okay, go to next step. If electrical connections are defective, repair as necessary and recheck for spark.
  3. Using ohmmeter, check resistance of spark plug wire. Replace spark plug wire if resistance exceeds 25,000 ohms and recheck for spark.
  4. Turn ignition on. Using voltmeter, check for battery voltage at ignition coil positive terminal (Black/Red wire) and ignitor positive terminal (Black/Red wire). If battery voltage exists, go to next step. If battery voltage does not exist, check wiring between ignition switch, ignition coil and ignitor. See WIRING DIAGRAMS article.
  5. Check ignition coil resistance. See IGNITION COIL RESISTANCE . If ignition coil resistance is within specification, go to next step. If ignition coil resistance is not within specification, replace ignition coil. See IGNITION COIL under IGNITION SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article.
  6. Check resistance of camshaft position sensor. See CAMSHAFT POSITION SENSOR . If camshaft position sensor resistance is within specification, go to next step. If camshaft position sensor resistance is not within specification, replace camshaft position sensor. See CAMSHAFT POSITION SENSOR under IGNITION SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article.
  7. Check resistance of crankshaft position sensor. See CRANKSHAFT POSITION SENSOR . If crankshaft position sensor resistance is within specification, go to next step. If crankshaft position sensor resistance is not within specification, replace crankshaft position sensor. See CRANKSHAFT POSITION SENSOR under IGNITION SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article.
  8. Check ignition IGT signal from Engine Control Module (ECM) to ignitor. If ignition IGT signal from ECM is defective, Diagnostic Trouble Code (DTC) P1300 will be set in ECM memory to indicate an ignitor circuit malfunction. See TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM in appropriate SELF-DIAGNOSTICS article for retrieving of DTCs.
  9. If ignition IGT signal is okay, substitute another ignitor and recheck system operation. If ignition IGT signal is defective, check wiring between ECM and ignitor. See ENGINE CONTROL MODULE LOCATION  table. See WIRING DIAGRAMS article. If wiring is defective, repair wiring as necessary and recheck system operation. If wiring is okay, substitute another ECM and recheck system operation. Reinstall components. Tighten spark plugs to 13 ft. lbs. (18 N.m).
    ENGINE CONTROL MODULE LOCATION

    Model (1) Location
    Avalon Behind Glove Box, Near Passenger's Side Kick Panel
    Camry, Camry Solara & Highlander Behind Glove Box
    Land Cruiser Above Glove Box, Near Passenger's Side Of Instrument Panel
    Sequoia & Tundra Behind Glove Box & Heater Duct
    Sienna Passenger's Side Of Instrument Panel, Just Below Glove Box
    Tacoma & 4Runner Behind Glove Box
    (1) For illustration of ECM location, see THEORY & OPERATION article.
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