DTC P0016, P0340, or P0344
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DTC P0016, P0340, or P0344
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DTC P0016 00
Crankshaft Position - Camshaft Position Not Plausible
DTC P0340 00
Camshaft Position Sensor Circuit Malfunction
DTC P0344 00
Camshaft Position Sensor Performance
Diagnostic Fault Information
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Circuit
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Short to Ground
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Open/High Resistance
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Short to Voltage
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Signal Performance
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5V Reference
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P0651 00
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P0340 00
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P0651 00
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-
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Signal
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P0340 00
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P0340 00
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P0344 00
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P0344 00, P0016 00
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Low Reference
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-
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P0340 00
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P0340 00
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-
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Component
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Condition
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DTCs
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Sensor - Camshaft
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•
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Foreign material passing between the Sensor - Camshaft and the reluctor wheel
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•
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Gap between the Sensor - Camshaft and the reluctor wheel is out of range
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|
P0340 00, P0016 00
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Reluctor Wheel
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•
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Foreign material passing between the Sensor - Camshaft and the reluctor wheel
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P0340 00, P0016 00
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Circuit/System Description
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The camshaft position sensor correlates the crankshaft to camshaft position so that the engine control module (ECM) can determine which cylinder is ready to be fueled by an injector. As the camshaft rotates, the reluctor wheel interrupts a magnetic field produced by a magnet within the sensor and sends a signal to the ECM through the signal circuit.
Conditions for Running the DTC
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P0016
•
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The engine speed is greater than 50 RPM.
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•
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The DTC runs continuously when the above conditions are met.
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P0340 and P0344
•
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The engine speed is greater than 50 RPM.
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•
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The DTCs run continuously when the above conditions are met.
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Conditions for Setting the DTC
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P0016 00
The ECM detects an incorrect camshaft position sensor signal.
P0340 00
The ECM detects no camshaft position sensor signal.
P0344 00
The ECM detects too few camshaft position sensor pulses.
Action Taken When the DTC Sets
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DTCs P0016, P0340, and P0344 are Type B DTCs.
Conditions for Clearing the DTC
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DTCs P0016, P0340, and P0344 are Type B DTCs.
The following conditions can also set the DTC:
•
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Physical damage to the camshaft position sensor or the reluctor wheel
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•
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Gap between the camshaft position sensor and the reluctor wheel is out of range
|
•
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Improper installation of the camshaft position sensor or the reluctor wheel
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•
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Foreign material passing between the camshaft position sensor and the reluctor wheel
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Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References
Circuit/System Verification
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1.
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With the engine running, check the DTC Info with a scan tool. Diagnostic trouble codes P0016, P0340 and P0344 must not be activated.
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2.
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Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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1.
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Ignition OFF, disconnect the harness connector at the B23 Camshaft Position Sensor.
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2.
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Test for less than 5 Ω between the low reference circuit terminal 1 and ground.
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3.
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If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuits tests normal, replace the K20 Engine Control Module.
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4.
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Ignition ON, test for greater than 4.8 V between the 5 V reference circuit terminal 3 and ground.
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5.
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If the value is less than the specified range, test the 5 V reference circuit for an open circuit/high resistance. If the circuit test normal, replace the K20 Engine Control Module
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6.
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Ignition ON, test for 4.2-4.8 V between the signal circuit terminal 2 and ground.
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7.
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If less than the specified range, test the signal circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.
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8.
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If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K20 Engine Control Module.
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9.
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If all circuits test normal, test or replace the B23 Camshaft Position Sensor.
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Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.