Engine Ignition System (2GR-FE): Overview Toyota RAV4 III

Scheme 16

Scheme 17

Scheme 18

Scheme 19

Scheme 20

Scheme 21

Scheme 22

Scheme 23

Scheme 24

Scheme 25

Scheme 26

1. CHECK IGNITION COIL ASSEMBLY AND PERFORM SPARK TEST NOTE: In this section, the terms "Cold" and "Hot" refers to the temperature of the sensor. "Cold" means approximately -10 to 50°C (14 to 122°F). "Hot" means approximately 50 to 100°C (122 to 212°F). Check the DTCs. NOTE: If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC. Check that sparks occur. Remove the V-bank cover. Remove the intake air surge tank (See step 53 under «REMOVAL»(ref-265059-S01631031182007092000000) ). Remove the bolt and ignition coil. Using a 16 mm spark plug wrench, remove the spark plug. Disconnect the 6 fuel injector connectors. Install the spark plug into the ignition coil, and then connect the ignition coil connectors. Ground the spark plug. Check that sparks occur at the spark plug while the engine is being cranked. NOTE: Be sure to ground the spark plugs when checking them. If the ignition coil has been struck or dropped, replace it. Do not crank the engine for more than 2 seconds. If sparks do not occur, perform troubleshooting using the spark test flowchart. Using a 16 mm plug wrench, install the spark plug. Torque: 25 Nm (254 kgf.cm, 18 ft.lbf) Install the ignition coil with the bolt. Torque: 10 Nm (102 kgf.cm, 7 ft.lbf) Connect the 6 fuel injector connectors. Install the intake air surge tank (See step 22 under «INSTALLATION»(ref-265059-S19240684252007092000000) ). Install the V-bank cover. Perform troubleshooting using the spark test flowchart. Check that the ignition coil connector is securely connected. Result RESULT REFERENCE Result Proceed to NG Connect securely OK Go to next step Perform the spark test on each ignition coil. Replace the ignition coil with a normal one. Perform the spark test again. Result RESULT REFERENCE Result Proceed to OK Replace ignition coil NG Go to next step Check the power supply to the ignition coil. Disconnect the ignition coil connector. Turn the ignition switch ON. Measure the voltage of the wire harness side connector. Standard voltage VOLTAGE REFERENCE Tester Connection Specified Condition 1 (+B) - 4 (GND) 9 to 14 V Result RESULT REFERENCE Result Proceed to NG Check wire harness and connector OK Go to next step Check the resistance of the crankshaft position sensor. Standard resistance RESISTANCE REFERENCE Temperature Condition Specified Condition Cold 1,630 to 2,740 ohms Hot 2,065 to 3,225 ohms Result RESULT REFERENCE Result Proceed to NG Replace crankshaft position sensor OK Go to next step Check the IGT signal from the ECM. Result RESULT REFERENCE Result Proceed to NG Check ECM (1) OK Repair wiring between ignition coil and ECM (1) See «DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT; DTC P0355 IGNITION COIL "E"»(/toyota/rav4/iii-2005-2010/remont/testing-diagnostics/#engine-control-system-2gr-fe)
2. CHECK SPARK PLUG Check the electrode with megohm meter: Using a megohm meter, measure the insulation resistance. Standard insulation resistance: 10 Mohms or more If the result is 10 Mohms or less, clean the plug and measure the resistance again. Check the electrode without megohm meter: Quickly accelerate the engine to 4,000 RPM 5 times. Remove the spark plug. Visually check the spark plug. If the electrode is dry, the spark plug is functioning properly. If the electrode is damp, proceed to the next step. Check the spark plug for any damage on its thread and insulator. If there is damage, replace the spark plug. Recommended spark plug SPARK PLUG TYPE Manufacturer Spark plug type DENSO FK20HR11 Check the spark plug electrode gap. Maximum electrode gap for used spark plug: 1.4 mm (0.055 in.) If the gap is greater than the maximum, replace the spark plug. Electrode gap for new spark plug: 1.0 to 1.1 mm (0.039 to 0.043 in.) If the electrode has traces of wet carbon, clean the electrode with a spark plug cleaner and then dry it. Standard air pressure: 588 kPa (6 kgf/cm 2 , 85 psi) Standard duration: 20 seconds or less HINT: Only use the spark plug cleaner when the electrode is free of oil. If the electrode has traces of oil, use gasoline to clean off the oil before using the spark plug cleaner.

Scheme 27

See also:
• DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT; DTC P0355 IGNITION COIL "E"