CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353 OR P0354)
CHECK IGNITION COIL ASSEMBLY (POWER SOURCE)
CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM)
CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM)
CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - BODY GROUND)
CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - INTEGRATION RELAY (IGT/INJ))
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
A Direct Ignition System (DIS) is used on this vehicle.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 is sent to the ECM while the engine is running (1 trip detection logic). |
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WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
- HINT:
- These DTCs indicate malfunctions relating to the primary circuit.
- If DTC P0351 is output, check the No. 1 ignition coil circuit.
- If DTC P0352 is output, check the No. 2 ignition coil circuit.
- If DTC P0353 is output, check the No. 3 ignition coil circuit.
- If DTC P0354 is output, check the No. 4 ignition coil circuit.
- 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 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.CHECK DTC OUTPUT |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the DTCs.
Result Result Proceed to DTC P0351, P0352, P0353 or P0354 is output A DTC P0351, P0352, P0353 and/or P0354 are output B
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| A | |
| 2.CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353 OR P0354) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the tester on.
Clear the DTCs (RAV4_ACA30 RM000000PDK0BLX.html).
Shuffle the arrangement of the ignition coils with igniters (among No. 1 to No. 4 cylinders).
- NOTICE:
- Do not shuffle the connectors.
Perform a simulation test.
Check the DTCs output to the tester.
Result Result Proceed to Same DTC output A Different ignition coil DTC output B
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| A | |
| 3.CHECK IGNITION COIL ASSEMBLY (POWER SOURCE) |
Disconnect the ignition coil assembly connectors.
 |
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Switch Condition Specified Condition B12-1 (+B) - B12-4 (GND) Ignition switch ON 11 to 14 V B11-1 (+B) - B11-4 (GND) Ignition switch ON 11 to 14 V B10-1 (+B) - B10-4 (GND) Ignition switch ON 11 to 14 V B9-1 (+B) - B9-4 (GND) Ignition switch ON 11 to 14 V
Text in Illustration *1 Front view of wire harness connector
(to Ignition Coil Assembly)
Reconnect the ignition coil connectors.
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| OK | |
| 4.CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) |
Disconnect the ignition coil assembly connectors.
 |
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance (Check for Open):
Tester Connection Condition Specified Condition B12-2 (IGF) - B32-82 (IGF1) Always Below 1 Ω B11-2 (IGF) - B32-82 (IGF1) Always Below 1 Ω B10-2 (IGF) - B32-82 (IGF1) Always Below 1 Ω B9-2 (IGF) - B32-82 (IGF1) Always Below 1 Ω
- Standard Resistance (Check for Short):
Tester Connection Condition Specified Condition B12-2 (IGF) or B32-82 (IGF1) - Body ground Always 10 kΩ or higher B11-2 (IGF) or B32-82 (IGF1) - Body ground Always 10 kΩ or higher B10-2 (IGF) or B32-82 (IGF1) - Body ground Always 10 kΩ or higher B9-2 (IGF) or B32-82 (IGF1) - Body ground Always 10 kΩ or higher
Text in Illustration *1 Front view of wire harness connector
(to Ignition Coil Assembly)*2 Front view of wire harness connector
(to ECM)
Reconnect the ECM connector.
Reconnect the ignition coil assembly connectors.
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| OK | |
| 5.CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) |
Disconnect the ignition coil assembly connectors.
 |
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance (Check for Open):
Tester Connection Condition Specified Condition B12-3 (IGT1) - B32-109 (IGT1) Always Below 1 Ω B11-3 (IGT2) - B32-108 (IGT2) Always Below 1 Ω B10-3 (IGT3) - B32-107 (IGT3) Always Below 1 Ω B9-3 (IGT4) - B32-106 (IGT4) Always Below 1 Ω
- Standard Resistance (Check for Short):
Tester Connection Condition Specified Condition B12-3 (IGT1) or B32-109 (IGT1) - Body ground Always 10 kΩ or higher B11-3 (IGT2) or B32-108 (IGT2) - Body ground Always 10 kΩ or higher B10-3 (IGT3) or B32-107 (IGT3) - Body ground Always 10 kΩ or higher B9-3 (IGT4) or B32-106 (IGT4) - Body ground Always 10 kΩ or higher
Text in Illustration *1 Front view of wire harness connector
(to Ignition Coil Assembly)*2 Front view of wire harness connector
(to ECM)
Reconnect the ECM connector.
Reconnect the ignition coil assembly connectors.
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| OK | ||
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| 6.CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - BODY GROUND) |
Disconnect the ignition coil assembly connectors.
 |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance (Check for Open):
Tester Connection Condition Specified Condition B12-4 (GND) - Body ground Always Below 1 Ω B11-4 (GND) - Body ground Always Below 1 Ω B10-4 (GND) - Body ground Always Below 1 Ω B9-4 (GND) - Body ground Always Below 1 Ω
Text in Illustration *1 Front view of wire harness connector
(to Ignition Coil Assembly)
Reconnect the ignition coil assembly connectors.
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| OK | |
| 7.CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - INTEGRATION RELAY (IGT/INJ)) |
Disconnect the ignition coil assembly connectors.
 |
Remove the integration relay from the engine room No. 1 relay block.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance (Check for Open):
Tester Connection Condition Specified Condition B12-1 (+B) - 1B-8 Always Below 1 Ω B11-1 (+B) - 1B-8 Always Below 1 Ω B10-1 (+B) - 1B-8 Always Below 1 Ω B9-1 (+B) - 1B-8 Always Below 1 Ω
- Standard Resistance (Check for Short):
Tester Connection Condition Specified Condition B12-1 (+B) or 1B-8 - Body ground Always 10 kΩ or higher B11-1 (+B) or 1B-8 - Body ground Always 10 kΩ or higher B10-1 (+B) or 1B-8 - Body ground Always 10 kΩ or higher B9-1 (+B) or 1B-8 - Body ground Always 10 kΩ or higher
Text in Illustration *1 Front view of wire harness connector
(to Ignition Coil Assembly)*2 Front view of wire harness connector
(to Integration Relay)*3 Engine Room No. 1 Relay Block
Reinstall the integration relay.
Reconnect the ignition coil assembly connectors.
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| OK | ||
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