DTC P0016 or P0017 - LDE
Diagnostic Instructions
DTC Descriptors
DTC P0016 00: Crankshaft Position - Intake
Camshaft Position Not Plausible
DTC P0017 00: Crankshaft Position - Exhaust
Camshaft Position Not Plausible
Circuit/System Description
The camshaft position actuator system enables the engine control
module (ECM) to change the timing of the camshafts while the
engine is operating. The camshaft position actuator solenoid valve
- inlet and camshaft position actuator solenoid valve - exhaust
signals from the ECM is pulse width modulated (PWM). The ECM
controls the camshaft position actuator solenoid valve - inlet and
camshaft position actuator solenoid valve - exhaust solenoid duty
cycle by controlling the amount of solenoid ON time. The camshaft
position actuator solenoid valve - inlet and camshaft position
actuator solenoid valve - exhaust solenoids control the advance or
the retard of the camshafts. The camshaft position actuator
solenoid valve - inlet and camshaft position actuator solenoid
valve - exhaust solenoids control the oil flow that applies the
pressure to advance or retard the camshafts.
The engine control module (ECM) uses the crankshaft position
sensor and the camshaft position actuator solenoid valve - intake
and camshaft position actuator solenoid valve - exhaust sensor
information to monitor the correlation between the crankshaft and
the camshaft positions.
Conditions for Running the DTC
• |
DTC P0335 00, P0336 00, P0340 00,
P0341 00, P0365 00, P0366 00, P0641 00, or
P0651 00 is not set |
• |
The engine is cranking or running. |
• |
The camshaft position actuator solenoid valves are
in the parked position. |
• |
The DTCs run continuously when the above
conditions are met. |
Conditions for Setting the DTC
The ECM detects a camshaft position actuator solenoid valve -
intake or camshaft position actuator solenoid valve - exhaust is
greater than 10 ° advanced, or 10 ° retarded, in
relationship to the crankshaft.
Action Taken When the DTC Sets
DTCs P0016 00 and P0017 00 are Type B DTCs.
Conditions for Clearing the DTC
DTCs P0016 00 and P0017 00 are Type B DTCs.
Diagnostic Aids
The following conditions can also set the DTC:
• |
A short to ground in a camshaft position actuator
solenoid valve control circuit can cause this DTC to set. |
• |
Inspect the engine for any recent engine
mechanical repairs. An incorrectly installed camshaft, camshaft
actuator, camshaft position sensor, crankshaft position sensor, or
timing belt can cause this DTC to set. |
• |
Excessive crankshaft end play can cause this DTC
to set. |
• |
An actuator that is in the full advance or retard
position can cause this DTC to set. |
• |
A crankshaft reluctor wheel that has moved in
relationship to top dead centre (TDC) can cause this DTC to
set. |
• |
Observing the desired and actual camshaft angle
parameters, with a scan tool before a DTC sets, may help to isolate
whether a condition is specific to one camshaft, or caused by a
condition with the crankshaft timing. |
Reference Information
Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Camshaft Actuator System Description
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Note: Incorrect oil viscosity,
aftermarket engine oil additives, or engine oil that is overdue for
changing can greatly affect the performance of the camshaft
position actuator solenoid valve.
- Ignition ON, observe the DTC information with a scan
tool. DTC P0010 00, P0011 00, P0013 00,
P0014 00, P0335 00, P0336 00, P0340 00,
P0341 00, P0365 00, or P0366 00 should not be
set.
- Engine idling at the normal operating temperature.
DTCs P0016 00 or P0017 00 should not set.
⇒ |
If a DTC sets, inspect for the following: |
• |
The correct installation of the Q6F Camshaft
Position Actuator Solenoid Valve - Intake or Q6E Camshaft
Position Actuator Solenoid Valve - Exhaust. |
• |
The correct installation of the
B26 Crankshaft Position Sensor. |
• |
A timing belt tensioner condition. |
• |
An incorrectly installed timing belt. |
• |
Excessive play in the timing belt. |
• |
A timing belt that jumped teeth. |
• |
A crankshaft reluctor wheel that has moved in
relationship to top dead centre (TDC) on the crankshaft. |
- 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 are captured in the freeze
frame/failure records data.
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
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