NOTE On Camry L CNG models INJ relay provides voltage to ignition coils For additional information on INJ relay see Inj Relay under Miscellaneous Controls

Distributorless Ignition System

Fig. 56: Distributorless Ignition System Schematic (Camry 2.2L CNG & Gasoline Models, & Camry Solara 2.2L)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Camry 3.0L V6 & Camry Solara 3.0L V6

Fig. 56: Distributorless Ignition System Schematic (Camry 2.2L CNG & Gasoline Models, & Camry Solara 2.2L)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. Camry 3.0L V6 & Camry Solara 3.0L V6

Distributorless Ignition System (DIS) uses Engine Control Module (ECM) for determining ignition timing (spark advance). ECM may determine ignition timing (spark advance) based on various input signals, engine RPM and knock sensor input signals.

Conventional distributor and pick-up coil have been replaced by Camshaft Position (CMP) sensor and Crankshaft Position (CKP) sensor. CMP sensor and CKP sensor deliver input signals to ECM. ECM detects standard crankshaft position based on CMP sensor input signals and actual crankshaft position, and engine speed by CKP sensor input signals. CMP sensor is located at flywheel end of front cylinder head, just below valve cover. See Fig. 12 . CKP is located at front of crankshaft, near crankshaft pulley. See Fig. 12 . For Knock Sensor (KS) location, see REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article.

ECM uses 3 ignition primary control signals to ignitor for ignition coils. DIS uses 3 ignition coils which fire 2 cylinders simultaneously using same ignition coil. See Fig. 57 . Cylinder No. 1 is front cylinder on right side of engine when viewed from flywheel end of engine. Cylinder No. 2 is front cylinder on left side of engine when

2001 ENGINE PERFORMANCE Theory & Operation viewed from flywheel end of engine. Cylinders No. 1, 3 and 5 are on right side of engine. Cylinders No. 2, 4 and 6 are on left side of engine.

One ignition coil is mounted on top of spark plug on cylinders No. 2, 4 and 6. Spark plug wires are routed from ignition coils on top of spark plugs to spark plugs on remaining cylinders. ECM monitors IGF circuit at ignitor to ensure ignition coils have fired.

Spark Plugs Cables Tacoma 2001
Fig. 57: Distributorless Ignition System Schematic (Camry 3.0L V6 & Camry Solara 3.0L V6) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Celica, Corolla, ECHO, Highlander 2.4L 4-Cyl., MR2, Prius & RAV4

Distributorless Ignition System (DIS) uses Engine Control Module (ECM) for determining ignition timing (spark advance). ECM may determine ignition timing (spark advance) based on various input signals, engine RPM and knock sensor input signal.

Conventional distributor and pick-up coil have been replaced by Camshaft Position (CMP) sensor and Crankshaft Position (CKP) sensor. CMP sensor may also be referred to as Variable Valve Timing (VVT) sensor. CMP sensor and CKP sensor deliver input signals to ECM. ECM detects standard crankshaft position based on CMP sensor input signals and actual crankshaft position, and engine speed by CKP sensor input

2001 ENGINE PERFORMANCE Theory & Operation signals. On Celica, Corolla and MR2, CMP sensor is located just above intake manifold on cylinder head, at flywheel end of engine. See Fig. 13 , Fig. 14 and Fig. 19 . On ECHO, Highlander, Prius and RAV4, CMP sensor is located on end of cylinder head at flywheel end of engine. See Fig. 15 , Fig. 16 , Fig. 20 and Fig. 21 . On all models, CKP sensor is located on front of engine, near crankshaft pulley. See Fig. 13 -Fig. 21 . For Knock Sensor (KS) location, see REMOVAL, OVERHAUL & INSTALLATION - 4-CYLINDER article.

ECM uses 4 ignition primary control signals to ignitors for ignition coils. DIS uses 4 ignition coils with internal ignitors, one ignition coil for each cylinder. See Fig. 58 . Cylinder No. 1 is front cylinder at timing chain end of engine and cylinder No. 4 is rear cylinder at flywheel end of engine. ECM monitors IGF circuit at ignitor to ensure ignition coils have fired.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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Responses

  • vanessa hamilton
    Where is ignition coil cylinder 6 camry 07?
    7 years ago
  • Vito
    What control the firing of the coils on 01 Toyota echo?
    3 years ago
  • FETHAWI IGGI
    How to advance distributorless 3sfe engine?
    2 years ago
  • Ruby
    How to fix Toyota corolla 1992 ignition system?
    8 months ago

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