Двигатель. Toyota Rav4. Aca30, 33, 38 Ala30
Система Управления Двигателем 2Az-Fe. Toyota Rav4. Aca30, 33, 38 Ala30
INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE)
CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM)
CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353 OR P0354)
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 |
DESCRIPTION
- УКАЗАНИЕ:
- These DTCs indicate malfunctions relating to the primary circuit.
- IF DTC P0351 is set, check No. 1 ignition coil circuit.
- IF DTC P0352 is set, check No. 2 ignition coil circuit.
- IF DTC P0353 is set, check No. 3 ignition coil circuit.
- IF DTC P0354 is set, check No. 4 ignition coil circuit.
The DIS is a 1-cylinder ignition system in which each cylinder is ignited by one ignition coil and one spark plug is connected to the end of each secondary wiring. A powerful voltage, generated in the secondary wiring, is applied directly to each spark plug. The sparks of the spark plugs pass from the center electrode to the ground electrodes.
The ECM determines the ignition timing and transmits the ignition (IGT) signals to each cylinder. Using the IGT signal, the ECM turns the power transistor inside the igniter on and off. The power transistor, in turn, switches on and off the current to the primary coil. When the current to the primary coil is cut off, a powerful voltage is generated in the secondary coil. This voltage is applied to the spark plugs, causing them to spark inside the cylinders. As the ECM cuts the current to the primary coil, the igniter sends back an ignition confirmation (IGF) signal to the ECM, for each cylinder ignition.
| DTC No. | DTC Detection Condition | Trouble Area |
| P0351 P0352 P0353 P0354 | No IGF signal to ECM while engine running (1 trip detection logic) |
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- Reference: Inspection using an oscilloscope.
- While cranking or idling the engine, check the waveform between terminals IGT (1 to 4) and E1, and IGF1 and E1 of the ECM connector.
Item Content Terminals CH1: IGT1, IGT2, IGT3, IGT4 - E1
CH2: IGF1 - E1Equipment Settings 2 V/DIV.
20 msec./DIV.Conditions Cranking or idling
WIRING DIAGRAM
INSPECTION PROCEDURE
- УКАЗАНИЕ:
- Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
| 1.INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE) |
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Disconnect the B9 to B12 ignition coil connector.
Measure the resistance between the wire harness side connectors.
- Standard resistance (Check for open):
Tester Connection Specified Condition GND (B9-4) - Body ground Below 1 Ω GND (B10-4) - Body ground GND (B11-4) - Body ground GND (B12-4) - Body ground
Turn the ignition switch on (IG).
Measure the voltage between the terminals of the wire harness side connectors.
- Standard voltage:
Tester Connection Specified Condition +B (B9-1) - GND (B9-4) 9 to 14 V +B (B10-1) - GND (B10-4) +B (B11-1) - GND (B11-4) +B (B12-1) - GND (B12-4)
Reconnect the ignition coil connector.
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| OK | |
| 2.CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) |
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Disconnect the B9 to B12 ignition coil connector.
Disconnect the B32 ECM connector.
Measure the resistance between the wire harness side connectors.
- Standard resistance (Check for open):
Tester Connection Specified Condition IGF (B9-2) - IGF1 (B32-81) Below 1 Ω IGF (B10-2) - IGF1 (B32-81) IGF (B11-2) - IGF1 (B32-81) IGF (B12-2) - IGF1 (B32-81)
- Standard resistance (Check for open):
Tester Connection Specified Condition IGT1 (B9-3) - IGT1 (B32-85) Below 1 Ω IGT2 (B10-3) - IGT2 (B32-84) IGT3 (B11-3) - IGT3 (B32-83) IGT4 (B12-3) - IGT4 (B32-82)
- Standard resistance (Check for short):
Tester Connection Specified Condition IGF (B9-2) or IGF1 (B32-81) - Body ground 10 kΩ or higher IGF (B10-2) or IGF1 (B32-81) - Body ground IGF (B11-2) or IGF1 (B32-81) - Body ground IGF (B12-2) or IGF1 (B32-81) - Body ground
- Standard resistance (Check for short):
Tester Connection Specified Condition IGT1 (B9-3) or IGT1 (B32-85) - Body ground 10 kΩ or higher IGT2 (B10-3) or IGT2 (B32-84) - Body ground IGT3 (B11-3) or IGT3 (B32-83) - Body ground IGT4 (B12-3) or IGT4 (B32-82) - Body ground
Reconnect the ECM connector.
Reconnect the ignition coil connector.
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| OK | |
| 3.CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353 OR P0354) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch on (IG) and turn the tester ON.
Clear DTCs (see page RAV4_ACA30 RM000000PDK013X.html).
Shuffle arrangement of the ignition coils with igniters (among No. 1 to No. 4 cylinders).
- ПРИМЕЧАНИЕ:
- Do not shuffle the connectors.
Perform a simulation test.
Check DTCs displayed on the tester.
- Result:
Display (DTC Output) Proceed to Same DTC output A Different ignition coil DTC output B
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| A | ||
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