DTC P0351 Ignition Coil "A" Primary / Secondary Circuit. DTC P0352 Ignition Coil "B" Primary / Secondary Circuit

Transcription

1 208 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM DTC P05 Ignition Coil "A" Primary / Secondary Circuit DTC P052 Ignition Coil "B" Primary / Secondary Circuit DTC P05 Ignition Coil "C" Primary / Secondary Circuit DTC P054 Ignition Coil "D" Primary / Secondary Circuit DTC P055 Ignition Coil "E" Primary / Secondary Circuit DTC P056 Ignition Coil "F" Primary / Secondary Circuit DTC P057 Ignition Coil "G" Primary / Secondary Circuit DTC P058 Ignition Coil "H" Primary / Secondary Circuit DCRIPTION HINT: These DTCs indicate a malfunction related to a primary circuit. If DTC P05 is displayed, check No. ignition coil circuit. If DTC P052 is displayed, check No. 2 ignition coil circuit. If DTC P05 is displayed, check No. ignition coil circuit. If DTC P054 is displayed, check No. 4 ignition coil circuit. If DTC P055 is displayed, check No. 5 ignition coil circuit. If DTC P056 is displayed, check No. 6 ignition coil circuit. If DTC P057 is displayed, check No. 7 ignition coil circuit. If DTC P058 is displayed, check No. 8 ignition coil circuit. A Direct Ignition System (DIS) is used on this vehicle. The DIS is a -cylinder ignition system which ignites one cylinder with one ignition coil. In the -cylinder ignition system, the one spark plug is connected to the end of the secondary winding. High voltage generated in the secondary winding is applied directly to the spark plug. The spark of the spark plug passes from the center electrode to the electrode. The ECM determines the ignition timing and outputs the ignition signals (IGTs) for each cylinder. Using the IGTs, the ECM turns the power transistor inside the igniter on/off, which switches on/off current to the primary coil. When current to the primary coil is cut off, high voltage is generated in the secondary coil and this voltage is applied to the spark plugs to create sparks inside the cylinders. As the ECM cuts current to the primary coil, the igniter sends back ignition confirmation signals (IGFs) for each cylinder ignition to the ECM.

2 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM 209 No. Ignition Coil ECM IGT IGF Igniter From Battery No. Cylinder Crankshaft Position Sensor IGT2 IGF2 IGT No. 2 Ignition Coil No. Ignition Coil Ignition Coil No. 2 Cylinder No. Cylinder Camshaft Position Sensor IGT4 No. 4 Ignition Coil No. 4 Cylinder IGT5 No. 5 Ignition Coil No. 5 Cylinder IGT6 No. 6 Ignition Coil No. 6 Cylinder Other Sensor (Engine Coolant Temperature Sensor, Mass Air Flow Meter, Throttle Position Sensor, etc.) IGT7 No. 7 Ignition Coil No. 7 Cylinder IGT8 No. 8 Ignition Coil No. 8 Cylinder TAC to Tachometer A7778E04

3 20 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM DTC No. DTC Detection Condition Trouble Area P05 P052 P05 P054 P055 P056 P057 P058 No IGF signal to ECM while engine is running Ignition system Open or short in IGF or IGT circuit ( to 8) between ignition coil with igniter and ECM No. to No. 8 ignition coil (primary ignition) ECM 2 V/DIV. CH Ground CH 2 Ground 20 msec./div. A09278E Reference: Inspect using an oscilloscope. While cranking or idling the engine, check the waveform between terminals IGT to IGT8 and E, and IGF to IGF2 and E of the E6, E8 and E6 ECM connectors. Items Terminals Equipment Settings Condition Contents CH: IGT, IGT2, IGT, IGT4, IGT5, IGT6, IGT7, IGT8 - E CH2: IGF, IGF2 - E 2 V/DIV. 20 msec./div. While the engine is cranking or idling

4 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM 2 MONITOR DCRIPTION Ignition Coil ECM IGT IGF Igniter Ignition Coil Ignition Signal (IGT) Ignition Confirmation Signal (IGF) Normal Open Open Time A08288E9 If the ECM does not receive an IGF after sending an IGT, it interprets this as a fault in the igniter and sets a DTC. MONITOR STRATEGY Related DTCs Required Sensors/Components (Main) Required Sensors/Components (Related) Frequency of Operation Duration MIL Operation Sequence of Operation P05: Igniter (cylinder ) malfunction P052: Igniter (cylinder 2) malfunction P05: Igniter (cylinder ) malfunction P054: Igniter (cylinder 4) malfunction P055: Igniter (cylinder 5) malfunction P056: Igniter (cylinder 6) malfunction P057: Igniter (cylinder 7) malfunction P058: Igniter (cylinder 8) malfunction Igniter Crankshaft position sensor Continuous seconds + 4 sparks Immediate None TYPICAL ENABLI CONDITIONS The monitor will run whenever these DTCs are not present None Either of the following condition is met: Condition or 2. Starter OFF 2. Engine RPM,500 rpm or less Either of the following condition is met: Condition or

5 22 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM All of the following conditions are met: - Engine RPM 500 rpm or less Battery voltage 6 V or more All of the following conditions are met: - Engine RPM More than 500 rpm Battery voltage 0 V or more Number of sparks after CPU is reset 5 sparks or more TYPICAL MALFUNCTION THRHOLDS Ignition signal fail count Ignition signal fail count More than 2 times When IGF does not return despite sending IGT COMPONENT OPERATI RAE IGF signal Igniter outputs IGF signal when it receives IGT signal from ECM

6 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM 2 WIRI DIAGRAM I Ignition Coil and Igniter No. ECM EB 7 EA 6 B-Y 2 IG2 I8 Ignition SW N Noise Filter (Ignition No. ) I Ignition Coil and Igniter No. I5 Ignition Coil and Igniter No. 5 I7 Ignition Coil and Igniter No. 7 R-Y R-Y I2 Ignition Coil and Igniter No. 2 LG R-Y R-Y L-W B-L G-W IGT IGF IGT IGT5 IGT R B AM2 AM2 Battery Engine Room R/B N2 Noise Filter (Ignition No. 2) B EC ER ED ED 2 I4 Ignition Coil and Igniter No. 4 I6 Ignition Coil and Igniter No. 6 I8 Ignition Coil and Igniter No. 8 L-Y R-Y R-Y LG-B L-Y G G-B IGT2 IGF2 IGT4 IGT6 IGT8 A72E0

7 24 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM 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. If DTCs P05, P054, P056 and P057 are output simultaneously, IGF circuit may be open or short. If DTCs P052, P05, P055 and P058 are output simultaneously, IGF2 circuit may be open or short. CHECK SPARK PLUG AND SPARK OF MISFIRI CYLINDER Check the spark plug and spark of misfiring cylinder (See page IG-). Go to step 4 2 CHECK HARNS AND CONNECTOR (IGNITION COIL - ECM [IGF SIGNAL TERMINAL]) Wire Harness Side I I2 I I4 I5 I6 I7 I8 Ignition Coil Connector IGF IGF2 ECM Connector A589E02 Disconnect the I, I2, I, I4, I5, I6, I7 or I8 ignition coil with igniter connectors. Disconnect the ECM connector. Measure the resistance between the wire harness side connectors. Standard resistance Ignition coil (I-2) - IGF (-24) Ignition coil (I2-2) - IGF2 (-25) Ignition coil (I-2) - IGF2 (-25) Ignition coil (I4-2) - IGF (-24) Ignition coil (I5-2) - IGF2 (-25) Ignition coil (I6-2) - IGF (-24) Ignition coil (I7-2) - IGF (-24) Ignition coil (I8-2) - IGF2 (-25) Ignition coil (I-2) or IGF (-24) - Ignition coil (I2-2) or IGF2 (-25) - Ignition coil (I-2) or IGF2 (-25) - Ignition coil (I4-2) or IGF (-24) - Ignition coil (I5-2) or IGF2 (-25) - Ignition coil (I6-2) or IGF (-24) - Ignition coil (I7-2) or IGF (-24) - Ignition coil (I8-2) or IGF2 (-25) - Below Ω 0 kω or higher

8 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM 25 (d) (e) Reconnect the ignition coil with igniter connectors. Reconnect the ECM connector. REPAIR OR REPLACE HARNS OR CONNECTOR INSPECT ECM (IGF AND IGF2 VOLTAGE) ECM Connector E6 Disconnect the ignition coil with igniter connectors. Turn the ignition switch ON. Measure the voltage of the and E6 ECM connectors. Standard voltage IGF (-24) - E (E6-) 4.5 to 5.5 V IGF2 (-25) - E (E6-) 4.5 to 5.5 V IGF (+) IGF2 (+) E (-) E8245E24 (d) Reconnect the ignition coil with igniter connectors. REPLACE ECM REPLACE IGNITION COIL WITH IGNITER 4 CHECK HARNS AND CONNECTOR (IGNITION COIL - ECM [IGT SIGNAL TERMINAL]) Wire Harness Side I I2 I I4 I5 I6 I7 I8 Ignition Coil Connector IGT2 IGT Disconnect the I, I2, I, I4, I5, I6, I7 or I8 ignition coil with igniter connectors. Disconnect the ECM connector. Measure the resistance between the wire harness side connectors. Standard resistance IGT (I-) - IGT (-8) IGT (I2-) - IGT2 (-5) IGT (I-) - IGT (-) IGT (I4-) - IGT4 (-0) IGT (I5-) - IGT5 (-) IGT (I6-) - IGT6 (-2) IGT (I7-) - IGT7 (-4) IGT (I8-) - IGT8 (-9) Below Ω IGT7 IGT5 IGT8 IGT4 IGT ECM Connector IGT6 A589E0

9 26 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM (d) (e) IGT (I-) or IGT (-8) - Body IGT (I2-) or IGT2 (-5) - Body IGT (I-) or IGT (-) - Body IGT (I4-) or IGT4 (-0) - Body IGT (I5-) or IGT5 (-) - Body IGT (I6-) or IGT6 (-2) - Body IGT (I7-) or IGT7 (-4) - Body IGT (I8-) or IGT8 (-9) - Body 0 kω or higher Reconnect the ignition coil with igniter connectors. Reconnect the ECM connector. REPAIR OR REPLACE HARNS OR CONNECTOR 5 INSPECT ECM (IGT, IGT2, IGT, IGT4, IGT5, IGT6, IGT7 OR IGT8 VOLTAGE) IGT (+) IGT4 (+) IGT8 (+) IGT (+) Measure the voltage of the and E6 ECM connectors when the engine is cranked. Standard voltage IGT (-8) - E (E6-) E6 IGT2 (-5) - E (E6-) IGT (-) - E (E6-) IGT4 (-0) - E (E6-) IGT5 (-) - E (E6-) 0. to 4.5 V IGT6 (-2) - E (E6-) IGT2 (+) IGT5 (+) IGT6 (+) E (-) IGT7 (-4) - E (E6-) IGT8 (-9) - E (E6-) IGT7 (+) A6425E08 REPLACE ECM

10 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM 27 6 INSPECT ECM (IGT, IGT2, IGT, IGT4, IGT5, IGT6, IGT7 OR IGT8 VOLTAGE) IGT (+) IGT4 (+) IGT8 (+) IGT (+) Disconnect the I, I2, I, I4, I5, I6, I7 or I8 ignition coil with igniter connectors. Measure the voltage of the and E6 ECM connectors when the engine is cranked. Standard voltage E6 IGT (-8) - E (E6-) IGT2 (-5) - E (E6-) IGT (-) - E (E6-) IGT2 (+) IGT5 (+) IGT6 (+) E (-) IGT4 (-0) - E (E6-) IGT5 (-) - E (E6-) IGT6 (-2) - E (E6-) 4.5 V or more IGT7 (+) A6425E08 IGT7 (-4) - E (E6-) IGT8 (-9) - E (E6-) Reconnect the ignition coil with igniter connectors. REPLACE ECM 7 INSPECT IGNITION COIL WITH IGNITER (POWER SOURCE) Wire Harness Side I I I5 I7 I2 I4 I6 I8 +B Ignition Coil Connector A05496 (d) Disconnect the I, I2, I, I4, I5, I6, I7 and I8 ignition coil with igniter connectors. Turn the ignition switch ON or START. Measure the voltage of the wire harness side connector and body. Standard voltage +B (I-) - +B (I2-) - +B (I-) - +B (I4-) - +B (I5-) - +B (I6-) - +B (I7-) - +B (I8-) - Reconnect the ignition coil connectors. 9 to 4 V REPLACE IGNITION COIL

11 28 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM 8 CHECK HARNS AND CONNECTOR (IGNITION COIL - IGNITION SWITCH) Wire Harness Side I I2 I I4 I5 I6 I7 I8 Disconnect the I, I2, I, I4, I5, I6, I7 or I8 ignition coil with igniter connectors. Disconnect the I8 ignition switch connector. Measure the resistance between the wire harness side connectors. Standard resistance Ignition coil (I-) - IG2 (I8-6) Ignition Coil Ignition coil (I2-) - IG2 (I8-6) Ignition coil (I-) - IG2 (I8-6) Ignition coil (I4-) - IG2 (I8-6) Ignition coil (I5-) - IG2 (I8-6) Below Ω I8 Ignition coil (I6-) - IG2 (I8-6) Ignition coil (I7-) - IG2 (I8-6) Ignition coil (I8-) - IG2 (I8-6) Ignition coil (I-) or IG2 (I8-6) - Ignition Switch IG2 A5892E0 Ignition coil (I2-) or IG2 (I8-6) - Ignition coil (I-) or IG2 (I8-6) - Ignition coil (I4-) or IG2 (I8-6) - Ignition coil (I5-) or IG2 (I8-6) - 0 kω or higher Ignition coil (I6-) or IG2 (I8-6) - Ignition coil (I7-) or IG2 (I8-6) - Ignition coil (I8-) or IG2 (I8-6) - (d) (e) Reconnect the ignition switch connector. Reconnect the ignition coil with igniter connectors. REPAIR OR REPLACE HARNS OR CONNECTOR REPLACE IGNITION COIL