DTC P0016, P0340, or P0344
Diagnostic Instructions
DTC Descriptors
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
|
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
|
5V Reference
|
P0651 00
|
P0340 00
|
P0651 00
|
--
|
|
Signal
|
P0340 00
|
P0340 00
|
P0344 00
|
P0344 00, P0016 00
|
|
Low Reference
|
--
|
P0340 00
|
P0340 00
|
--
|
|
Component
|
Condition
|
DTCs
|
|
Sensor - Camshaft
|
| • |
Foreign material passing between the Sensor -
Camshaft and the reluctor wheel |
| • |
Gap between the Sensor - Camshaft and the reluctor
wheel is out of range |
|
P0340 00, P0016 00
|
|
Reluctor Wheel
|
| • |
Foreign material passing between the Sensor -
Camshaft and the reluctor wheel |
|
P0340 00, P0016 00
|
Circuit/System Description
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
P0016
| • |
The engine speed is greater than 50 RPM. |
| • |
The DTC run continuously once the above conditions
are met. |
P0340 and P0344
| • |
The engine speed is greater than 50 RPM. |
| • |
The DTCs run continuously once the above
conditions are met. |
Conditions for Setting the DTC
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
DTCs P0016, P0340, and P0344 are Type B DTCs.
Conditions for Clearing the DTC
DTCs P0016, P0340, and P0344 are Type B DTCs.
Diagnostic Aids
The following conditions can also set the DTC:
| • |
Physical damage to the camshaft position sensor or
the reluctor wheel |
| • |
Gap between the camshaft position sensor and the
reluctor wheel is out of range |
| • |
Improper installation of the camshaft position
sensor or the reluctor wheel |
| • |
Foreign material passing between the camshaft
position sensor and the reluctor wheel |
Reference Information
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
- Engine running, observe the DTC information with a
scan tool. DTCs P0016, P0340, and P0344 should not set.
- 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.
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the
B23 Camshaft Position Sensor.
- Test for less than 5 Ω between the low reference
circuit terminal 1 and ground.
If greater than the specified range, test the low reference
circuit for an open/high resistance. If the circuit test normal,
replace the K20 Engine Control Module.
- Ignition ON, test for greater than 4.8 V between
the 5 V reference circuit terminal 3 and ground.
If less than the specified range, test the 5 V reference
circuit for an open/high resistance. If the circuit test normal,
replace the K20 Engine Control Module
- Ignition ON, test for 4.2-4.8 V between the
signal circuit terminal 2 and ground.
If less than the specified range, test the signal circuit for a
short to ground or an open/high resistance. If the circuit tests
normal, replace the K20 Engine Control Module.
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.
- If all circuits test normal, test or replace the
B23 Camshaft Position Sensor.
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
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