DTC P0011 or P0014 (LDD)
Diagnostic Instructions
DTC Descriptors
DTC P0011 00: Intake Camshaft Position System
Performance |
DTC P0014 00: Exhaust Camshaft Position System
Performance |
Diagnostic Fault Information
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
Intake Actuator Solenoid Control
|
P0010 00
|
P0010 00
|
P0010 00
|
P0011 00
|
Exhaust Actuator Solenoid Control
|
P0013 00
|
P0013 00
|
P0013 00
|
P0014 00
|
Intake Actuator Solenoid Low Reference
|
-
|
P0010 00, P0011 00
|
-
|
P0011 00
|
Exhaust Actuator Solenoid Low Reference
|
-
|
P0013 00, P0014 00
|
-
|
P0014 00
|
|
|
Circuit/System Description
The camshaft position actuator solenoid valve - intake and
camshaft position actuator solenoid valve - exhaust are attached to
each camshaft and is operated hydraulically in order to change the
angle of the camshaft relative to crankshaft position. The camshaft
position actuator solenoid valve - intake and camshaft position
actuator solenoid valve - exhaust are controlled by the engine
control module (ECM). The ECM sends a pulse width modulated signal
to a camshaft position actuator solenoid valve - intake and
camshaft position actuator solenoid valve - exhaust solenoids. The
camshaft position actuator solenoid valve - intake and camshaft
position actuator solenoid valve - exhaust solenoids controls the
amount of engine oil flow to a camshaft position actuator solenoid
valve - intake and camshaft position actuator solenoid valve -
exhaust. The camshaft position actuator solenoid valve - intake and
camshaft position actuator solenoid valve - exhaust can change the
camshaft angle by a maximum of 20°. The ECM increases the pulse
width to accomplish the desired camshaft operation.
The ECM controls the solenoid with a solid state device called a
driver. The driver is equipped with a feedback circuit that is
pulled-up to a voltage. The ECM can determine if the control
circuit is open, shorted to ground, or shorted to a voltage by
monitoring the feedback voltage.
Conditions for Running the DTC
• |
DTC P0010 00, P0013 00, P0016
00, P0017 00, P0335 00, P0336 00, P0340 00, P0341 00, P0365 00, or
P0366 00 is not set. |
• |
The ignition voltage is
between 11-18 V. |
• |
The camshaft position actuator
is enabled. |
• |
The rate of change in the
camshaft position is less than 5° for 4 s. |
Conditions for Setting the DTC
The ECM detects a difference of greater than 8° between the
camshaft position angle position and the desired camshaft position
for greater than 30 s.
Action Taken When the DTC Sets
• |
DTCs P0011 00 and P0014 00 are
Type B DTCs. |
• |
The camshaft position actuator
solenoid valve - intake and camshaft position actuator solenoid
valve - exhaust are commanded to the park position. |
Conditions for Clearing the DTC
DTCs P0011 00 and P0014 00 are Type B DTCs.
Diagnostic Aids
• |
The engine oil condition has a
major impact on the camshaft actuator system. |
• |
A low oil level condition may
set this DTC. The engine may require an oil change. Inquire with
the customer when the last oil change was performed. You may also
monitor the scan tool Engine Oil Life Remaining parameter. Advise
the customer an oil change may be required. |
• |
Inspect the engine for any
recent engine mechanical repairs. An incorrectly installed
camshaft, camshaft actuator, or timing belt can cause this DTC to
set. |
• |
A resistance greater than 8
Ω on the camshaft position actuator solenoid valve - intake
or camshaft position actuator solenoid valve - exhaust control
circuit may set this DTC. If you suspect high resistance, earth the
control circuit while the engine is idling. The scan tool Intake
Camshaft Position Actuator Solenoid Valve Control Circuit Low
Voltage Test Status or Exhaust Camshaft Position Actuator Solenoid
Valve Control Circuit Low Voltage Test Status parameter should
display Fault. If the parameter displays OK, test the control
circuit for high resistance. |
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: The engine oil level
and the oil pressure are critical to the correct operation of the
camshaft position actuator system. Verify that the engine has the
correct oil level and the correct oil pressure before continuing
with this diagnostic. See Engine Mechanical Specifications.
1. |
Engine idling at operating
temperature, command the appropriate Intake Camshaft Position
Actuator or Exhaust Camshaft Position Actuator to 20° with a
scan tool. The Desired Intake Camshaft Position or Desired Exhaust
Camshaft Position parameter value should match the Intake Camshaft
Position or Exhaust Camshaft Position angle parameter value.
|
2. |
Observe the Intake Camshaft
Position Variance or Exhaust Camshaft Position Variance value on
the scan tool. The Intake Camshaft Position Variance or Exhaust
Camshaft Position Variance value will increment for several seconds
until the Intake Camshaft Position or Exhaust Camshaft Position
angle value matches the Desired Intake Camshaft Position or Desired
Exhaust Camshaft Position value. The Intake Camshaft Position
Variance or Exhaust Camshaft Position Variance value should then
return to 0°. |
3. |
Operate the vehicle within the
conditions for running the DTC. You may also operate the vehicle
within the conditions that you observed from the freeze
frame/failure records data. |
Circuit/System Testing
1. |
Ignition OFF for 1 min,
disconnect the harness connector at the appropriate Q6F Camshaft
Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position
Actuator Solenoid Valve - Exhaust solenoid. |
2. |
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 tests
normal, replace the K20 Engine Control Module. |
3. |
Ignition ON, test for 2-3 V
between the control circuit terminal 2 and ground. |
⇒ |
If less than the specified range, test the control
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
control circuit for a short to voltage. If the circuit/connections
test normal, replace the K20 Engine Control Module. |
4. |
Command the appropriate Intake
Camshaft Position Actuator Solenoid Valve or Exhaust Camshaft
Position Actuator Solenoid Valve solenoid ON and OFF with a scan
tool. The DMM should transition from 2-3 V when commanded OFF to
greater than 10 V when commanded ON. |
⇒ |
If the circuit voltage does not correspond to the
specified values, replace the K20 Engine Control Module. |
5. |
Remove the Q6F Camshaft
Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position
Actuator Solenoid Valve - Exhaust solenoid. Inspect the appropriate
Camshaft Position Actuator Solenoid Valve and mounting area for the
following conditions: |
|
• |
For a torn, restricted,
incorrect positioned, or missing screens at the Q6F Camshaft
Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position
Actuator Solenoid Valve - Exhaust |
|
• |
For engine oil leaks between
the oil sealing lands of the Q6F Camshaft Position Actuator
Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid
Valve - Exhaust solenoid, inspect the lands of the Q6F Camshaft
Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position
Actuator Solenoid Valve - Exhaust solenoid for nicks |
|
• |
For oil seepage at the Q6F
Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft
Position Actuator Solenoid Valve - Exhaust solenoid
connector |
⇒ |
If a condition is found, replace the appropriate Q6F Camshaft
Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position
Actuator Solenoid Valve - Exhaust solenoid. |
6. |
Ignition OFF, swap the
suspected Q6F Camshaft Position Actuator Solenoid Valve - Intake or
Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid
with a Q6F Camshaft Position Actuator Solenoid Valve - Intake or
Q6E Camshaft Position Actuator Solenoid Valve - Exhaust actuator
solenoid that is operating correctly. |
|
Note: This step is
testing the mechanical operation of the camshaft position actuator
solenoid valve that set the DTC.
|
7. |
Engine idling, command the
appropriate Intake Camshaft Position Actuator or Exhaust Camshaft
Position Actuator to 20° and back to 0° while observing the
appropriate scan tool Intake Camshaft Position Variance or Exhaust
Camshaft Position Variance value parameter. The Intake Camshaft
Position Variance or Exhaust Camshaft Position Variance value
should be less than 2° in each of the commanded states.
|
⇒ |
If greater than the specified value, replace or
repair the mechanical camshaft position actuator operation. |
8. |
If all circuits/connections
test normal, test or replace the Q6F Camshaft Position Actuator
Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid
Valve - Exhaust. |
Component Testing
Static Test
1. |
Ignition OFF, disconnect the
harness connector at the appropriate Q6F Camshaft Position Actuator
Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid
Valve - Exhaust. |
2. |
Test for 7-12 Ω between
the terminals of the Q6F Camshaft Position Actuator Solenoid Valve
- Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust
solenoid. |
⇒ |
If not within the specified range, replace the Q6F
Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft
Position Actuator Solenoid Valve - Exhaust solenoid. |
3. |
Test for infinite resistance
between each terminal and the Q6F Camshaft Position Actuator
Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid
Valve - Exhaust housing. |
⇒ |
If not the specified value, replace the Q6F
Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft
Position Actuator Solenoid Valve - Exhaust solenoid. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
|