DTC P0016 or P0017 (LUJ)
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 -
intake 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 - intake and
camshaft position actuator solenoid valve - exhaust solenoid duty
cycle by controlling the amount of solenoid ON time. The camshaft
position actuator solenoid valve - intake and camshaft position
actuator solenoid valve - exhaust solenoids control the advance or
the retard of the camshafts. The camshaft position actuator
solenoid valve - intake 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 chain 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 center (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.
1. |
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. |
2. |
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 chain tensioner
condition. |
|
• |
An incorrectly installed
timing chain. |
|
• |
Excessive play in the timing
chain |
|
• |
A timing chain that jumped
teeth. |
|
• |
A crankshaft reluctor wheel
that has moved in relationship to top dead center (TDC) on the
crankshaft. |
3. |
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.
|