(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Standard Resistance (Check for Short):
Text in Illustration
(d) Reconnect the VVT sensor connector.
(e) Reconnect the ECM connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT SENSOR FOR EXHAUST SIDE - ECM)
OK -- REPLACE ECM See: Powertrain Management/Computers and Control Systems/Engine Control Module/Service and
Repair/Removal
Up to 08/2009
2GR-FE ENGINE CONTROL: SFI SYSTEM: P0365,P0367,P0368,P0390,P0392,P0393: Camshaft Position Sensor "B" Circuit (Bank 1)
DESCRIPTION
The exhaust camshaft's VVT sensor consists of a magnet and MRE (Magneto Resistive Element).
The exhaust camshaft has a sensor plate with 3 teeth on its outer circumference.
When the exhaust camshaft rotates, changes occur in the air gaps between the 3 teeth and MRE, which affects the magnet. As a result, the resistance
of the MRE material fluctuates. The VVT sensor converts the exhaust camshaft rotation data to pulse signals, uses the pulse signals to determine the
camshaft angle, and sends it to the ECM.
The crank angle sensor plate has 34 teeth. The pickup coil generates 34 signals for each engine rotation. Based on combination of the VVT signals
and NE signal, the ECM detects the crankshaft angle. Then the ECM uses this data to control fuel injection time and injection timing. Also, based on
the NE signal, the ECM detects the engine speed.
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