| DTC Code | DTC Name |
|---|---|
| P034011 | Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground |
| P034015 | Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Battery or Open |
DESCRIPTION
The camshaft position sensor for the intake camshaft (VV1 signal) consists of a magnet and MRE (Magneto-Resistive Element).
The camshaft has a timing rotor for the camshaft position sensor. When the camshaft rotates, changes occur in the air gaps between the timing rotor and MRE, which affects the magnetic field. As a result, the resistance of the MRE material fluctuates. The camshaft position sensor converts the camshaft rotation data to pulse signals, uses the pulse signals to determine the camshaft angle, and sends it to the ECM. Then the ECM uses this data to control fuel injection and injection timing.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P034011 | Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground | The output voltage of the camshaft position sensor is below 0.3 V for 4 seconds (1 trip detection logic). |
|
Comes on | DTC stored | SAE: P0342 |
| P034015 | Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Battery or Open | The output voltage is higher than 4.7 V for 4 seconds (1 trip detection logic). |
|
Comes on | DTC stored | SAE: P0343 |
| *a | 5 V/DIV. |
| *b | 20 ms./DIV. |
Reference: Inspection using an oscilloscope.
Tech Tips
The correct waveform is as shown.
VV1 stands for the camshaft position sensor signal (for intake camshaft), and EV1 stands for the camshaft position sensor signal (for exhaust camshaft).
| ECM Terminal Name | CH1: Between VV1+ and VV1- CH2: Between EV1+ and EV1- |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Idling |
MONITOR DESCRIPTION
When the camshaft position sensor (for intake camshaft) output voltage is less than 0.3 V, or higher than 4.7 V, continuously for 4 seconds or more, the ECM illuminates the MIL and stores a DTC.
MONITOR STRATEGY
| Required Sensors/Components (Main) | Camshaft position sensor |
| Required Sensors/Components (Related) | Crankshaft position sensor |
| Frequency of Operation | Continuous |
CONFIRMATION DRIVING PATTERN
Connect the GTS to the DLC3.
Turn the engine switch on (IG) and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the engine switch off and wait for at least 30 seconds.
Turn the engine switch on (IG) and turn the GTS on.
Start the engine.
Idle the engine for 10 seconds or more [A].
Enter the following menus: Powertrain / Engine / Trouble Codes [B].
Read the pending DTCs.
Tech Tips
If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P034011 or P034015.
Check the DTC judgment result.
| GTS Display | Description |
|---|---|
| NORMAL |
|
| ABNORMAL |
|
| INCOMPLETE |
|
Tech Tips
If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
If the judgment result shows INCOMPLETE, perform steps [A] and [B] again.
WIRING DIAGRAM
| *a | 1.5 kΩ |
| *b | Camshaft Position Sensor (for Intake Camshaft) |
CAUTION / NOTICE / HINT
Tech Tips
If no problem is found through this diagnostic troubleshooting procedure, there may be a mechanical problem with the engine.
Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
CHECK TERMINAL VOLTAGE (POWER SOURCE OF CAMSHAFT POSITION SENSOR)
Tech Tips
Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.
| *a | Front view of wire harness connector (to Camshaft Position Sensor for Intake Camshaft) |
Disconnect the camshaft position sensor for intake camshaft connector.
Turn the engine switch on (IG).
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Turn the engine switch off and wait for at least 30 seconds.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE CAMSHAFT POSITION SENSOR Click here |
| NG |
|
CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM)
Disconnect the camshaft position sensor for intake camshaft connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE ECM Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |