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• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Inlet Actuator Solenoid Control | P0010 00 | P0010 00 | P0010 00 | P0011 00 |
Exhaust Actuator Solenoid Control | P0013 00 | P0013 00 | P0013 00 | P0014 00 |
Inlet Actuator Solenoid Low Reference | - | P0010 00, P0011 00 | - | P0011 00 |
Exhaust Actuator Solenoid Low Reference | - | P0013 00, P0014 00 | - | P0014 00 |
The camshaft position actuator solenoid valve - inlet 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 - inlet 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 - inlet and camshaft position actuator solenoid valve - exhaust solenoids. The camshaft position actuator solenoid valve - inlet and camshaft position actuator solenoid valve - exhaust solenoids controls the amount of engine oil flow to a camshaft position actuator solenoid valve - inlet and camshaft position actuator solenoid valve - exhaust. The camshaft position actuator solenoid valve - inlet 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.
• | The engine is running. |
• | The ignition voltage is between 11-18 V. |
• | The camshaft position actuator is commanded on. |
• | The DTCs run continuously when the above conditions are met. |
The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for greater than 5 s.
DTCs P0010 00, and P0013 00, are Type B DTCs.
DTCs P0010 00, and P0013 00, are Type B DTCs.
If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the scan tool Camshaft Position Sensor solenoid circuit status parameters. The circuit status parameters will change from OK, or Not Run, to Fault if there is a condition with the circuit or connection.
Camshaft Actuator System Description
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
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.
Refer to Engine Mechanical Specifications : 1.8L 2H0 .
⇒ | If the test lamp does not illuminate, test the control circuit for an open/high resistance. |
⇒ | If the test lamp illuminates, test the low reference circuit for an ground. If the circuit test normal, replace the K20 Engine Control Module. |
⇒ | If the test lamp does not correspond to the commanded state, test the low reference circuit for an open/high resistance or a short to voltage. If the circuit test, replace the K20 Engine Control Module. |
⇒ | If not within the specified range, replace the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid. |
⇒ | If not the specified value, replace the Q6F Camshaft Position Actuator Solenoid Valve - Intake or Q6E Camshaft Position Actuator Solenoid Valve - Exhaust solenoid. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for replacement, setup, and programming |
© Copyright Chevrolet. All rights reserved |
© Copyright Chevrolet. All rights reserved |