Diagnostic Instructions

DTC Descriptor

DTC P000A 00: Intake Camshaft Position System Slow Response

DTC P000B 00: Exhaust Camshaft Position System Slow Response

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	P2088 00	P0010 00	P2089 00	P000A 00
Intake Actuator Supply Voltage	--	P0010 00	--	--
Exhaust Actuator Solenoid Control	P2090 00	P0013 00	P2091 00	P000B 00, P0014 00
Exhaust Actuator Supply Voltage	--	P0013 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.

Conditions for Running the DTC

Conditions for Setting the DTC

The actual camshaft position does not match the commanded position

Action Taken When the DTC Sets

DTCs P000A 00, P000B 00, P0011 00 and P0014 00 are Type B DTCs.

Conditions for Clearing the DTC

DTCs P000A 00, P000B 00, P0011 00 and P0014 00 are Type B DTCs.

Reference Information

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Note: The supply of clean pressurized engine oil to the Q6E Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust and Q6F Camshaft Position (CMP) Actuator Solenoid Valve - Intake is essential to CMP actuator performance.

1. Observe the engine oil level. The engine oil level should be within operating range. Refer to Approximate Fluid Capacities.
2. Ensure that the vehicle has the correct type of engine oil and that the oil is not old, burnt or contains additives. Refer to Checking Things Under the Hood in Service and Appearance Care within the Owner's Manual.

⇒	If the vehicle has the incorrect type of engine oil, or the oil is old, burnt, or contains additives then change the oil and filter.

3. Test the engine oil pressure for correct operation. Refer to Oil Pressure Diagnosis and Testing
4. 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

Note: You must complete the circuit/system Verification before proceeding with circuit/system testing

1. Test for less than 1 Ω on the Q6F Camshaft Position (CMP) Actuator Solenoid Valve - Intake or Q6E Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust solenoid ignition voltage circuit

⇒	If greater than 1 Ω, test the ignition voltage for an open/high resistance. If the circuit tests normal, replace the Q6F Camshaft Position (CMP) Actuator Solenoid Valve - Intake or Q6E Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust solenoid.

2. Test for less than 1 Ω on the Q6F Camshaft Position (CMP) Actuator Solenoid Valve - Intake or Q6E Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust solenoid control circuit.

⇒	If greater than 1 Ω, test the control circuit for an open/high resistance. If the circuit tests normal, replace the Q6F Camshaft Position (CMP) Actuator Solenoid Valve - Intake or Q6E Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust solenoid.

3. Inspect the Q6F Camshaft Position (CMP) Actuator Solenoid Valve - Intake or Q6E Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust. Refer to LINK (Camshaft Cleaning and Inspection).
4. Inspect the engine timing components. Refer to Timing Belt Replacement.

Component Testing

Static Test

1. Measure the resistance of each Q6F Camshaft Position (CMP) Actuator Solenoid Valve - Intake or Q6E Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust. Resistance should be between 8-12 Ω.
2. Connect a jumper wire between the Q6F Camshaft Position (CMP) Actuator Solenoid Valve - Intake or Q6E Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust low reference circuit at the solenoid and a good ground. Connect a fused jumper wire to the camshaft position actuator solenoid valve - intake and camshaft position actuator solenoid valve - exhaust high control circuit at the solenoid. Momentarily touch the fused jumper to B+. Observe the spool valve inside the Q6F Camshaft Position (CMP) Actuator Solenoid Valve - Intake or Q6E Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust. The spool valve should move from fully closed to fully opened position.

⇒	If the function does not perform as specified, replace the Q6F Camshaft Position (CMP) Actuator Solenoid Valve - Intake or Q6E Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.