Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
2Gr-Fe Engine Control System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE)
CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM (IGT SIGNAL TERMINAL))
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" Primary / Secondary Circuit |
DTC P0356 Ignition Coil "F" Primary / Secondary Circuit |
DESCRIPTION
- HINT:
- These DTCs indicate malfunctions relating to the primary circuit.
- If DTC P0351 is set, check the No. 1 ignition coil circuit.
- If DTC P0352 is set, check the No. 2 ignition coil circuit.
- If DTC P0353 is set, check the No. 3 ignition coil circuit.
- If DTC P0354 is set, check the No. 4 ignition coil circuit.
- If DTC P0355 is set, check the No. 5 ignition coil circuit.
- If DTC P0356 is set, check the No. 6 ignition coil circuit.
The DIS is a 1-cylinder ignition system in which each cylinder is ignited by one ignition coil and 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 signals (IGT) 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 off, the igniter sends back an ignition confirmation signal (IGF) to the ECM, for each cylinder ignition.
| DTC No. | DTC Detection Condition | Trouble Area |
| P0351 P0352 P0353 P0354 P0355 P0356 | No IGF signal to ECM while engine is running (1 trip detection logic) |
|
Reference: Inspection using an oscilloscope.
- While cranking or idling the engine, check the waveform between terminals IGT (1 to 6) and E1, IGF1 and E1 of the ECM connector.
Item Content Terminal CH1: IGT1, IGT2, IGT3, IGT4, IGT5, IGT6 - E1
CH2: IGF1 - E1Equipment Setting 2 V/DIV.
20 ms./DIV.Condition Cranking or idling
MONITOR DESCRIPTION
If the ECM does not receive any IGF signals despite transmitting the IGT signal, it interprets this as a fault in the igniter and sets a DTC.
If the malfunction is not repaired successfully, a DTC is set 1 second after the engine is next started.
WIRING DIAGRAM
INSPECTION PROCEDURE
- HINT:
- Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction (RAV4_ACA30 RM000000PDS09FX.html).
| 1.INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE) |
Disconnect the ignition coil connector.
 |
Turn the ignition switch to the ON position.
Measure the voltage according to the value(s) in the table below.
- Standard voltage:
Tester Connection Specified Condition +B (B90-1) - Body ground 9 to 14 V +B (B76-1) - Body ground 9 to 14 V +B (B89-1) - Body ground 9 to 14 V +B (B75-1) - Body ground 9 to 14 V +B (B83-1) - Body ground 9 to 14 V +B (B73-1) - Body ground 9 to 14 V
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Specified Condition GND (B90-4) - Body ground Below 1 Ω GND (B76-4) - Body ground Below 1 Ω GND (B89-4) - Body ground Below 1 Ω GND (B75-4) - Body ground Below 1 Ω GND (B83-4) - Body ground Below 1 Ω GND (B73-4) - Body ground Below 1 Ω
|
| ||||
| OK | |
| 2.CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM (IGT SIGNAL TERMINAL)) |
Disconnect the ignition coil connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for open):
Tester Connection Specified Condition IGT1 (B90-3) - IGT1 (B96-40) Below 1 Ω IGT2 (B76-3) - IGT2 (B96-39) Below 1 Ω IGT3 (B89-3) - IGT3 (B96-38) Below 1 Ω IGT4 (B75-3) - IGT4 (B96-37) Below 1 Ω IGT5 (B83-3) - IGT5 (B96-36) Below 1 Ω IGT6 (B73-3) - IGT6 (B96-35) Below 1 Ω IGF (B90-2) - IGF1 (B96-106) Below 1 Ω IGF (B76-2) - IGF1 (B96-106) Below 1 Ω IGF (B89-2) - IGF1 (B96-106) Below 1 Ω IGF (B75-2) - IGF1 (B96-106) Below 1 Ω IGF (B83-2) - IGF1 (B96-106) Below 1 Ω IGF (B73-2) - IGF1 (B96-106) Below 1 Ω
- Standard resistance (Check for short):
Tester Connection Specified Condition IGT1 (B90-3) or IGT1 (B96-40) - Body ground 10 kΩ or higher IGT2 (B76-3) or IGT2 (B96-39) - Body ground 10 kΩ or higher IGT3 (B89-3) or IGT3 (B96-38) - Body ground 10 kΩ or higher IGT4 (B75-3) or IGT4 (B96-37) - Body ground 10 kΩ or higher IGT5 (B83-3) or IGT5 (B96-36) - Body ground 10 kΩ or higher IGT6 (B73-3) or IGT6 (B96-35) - Body ground 10 kΩ or higher IGF (B90-2) or IGF1 (B96-106) - Body ground 10 kΩ or higher IGF (B76-2) or IGF1 (B96-106) - Body ground 10 kΩ or higher IGF (B89-2) or IGF1 (B96-106)- Body ground 10 kΩ or higher IGF (B75-2) or IGF1 (B96-106) - Body ground 10 kΩ or higher IGF (B83-2) or IGF1 (B96-106) - Body ground 10 kΩ or higher IGF (B73-2) or IGF1 (B96-106) - Body ground 10 kΩ or higher
Reconnect the ignition coil connector.
Reconnect the ECM connector.
|
| ||||
| OK | |
| 3.PERFORM SIMULATION TEST |
Clear the DTC(s) (RAV4_ACA30 RM000000PDK0WDX.html).
Change the arrangement of the ignition coils (with igniters).
- NOTICE:
- Do not change the location of the connectors.
Perform a simulation test.
- Result:
Display (DTC Output) Proceed to Same DTCs (that have been erased) A Other DTCs B
|
| ||||
| A | ||
| ||