DESCRIPTION
The camshaft position sensor (for intake camshaft) (VV1 signal) consists of a magnet and MRE (Magneto Resistance Element).
The intake camshaft has a timing rotor for the camshaft position sensor. When the intake 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. The ECM uses the pulse signals to determine the camshaft angle. Then the ECM uses this data to control fuel injection duration 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 camshaft position sensor (for intake camshaft) output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic). |
| Comes on | DTC stored | SAE Code: P0342 |
P034015 | Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Battery or Open | The camshaft position sensor (for intake camshaft) output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic). |
| Comes on | DTC stored | SAE Code: P0343 |
HINT:
ECM Terminal Name | CH1: Between VV1+ and VV1- CH2: Between EV1+ and EV1- |
Tester Range | 5 V/DIV., 20 ms./DIV. |
Condition | Idling with warm engine |
MONITOR DESCRIPTION
If the output voltage transmitted by the camshaft position sensor (for intake camshaft) remains low or high, the ECM interprets this as a malfunction in the sensor circuit, illuminates the MIL and stores a DTC.
MONITOR STRATEGY
Related DTCs | P0342: Camshaft position sensor range check (low voltage) P0343: Camshaft position sensor range check (high voltage) |
Required Sensors/Components (Main) | Camshaft position sensor (for intake camshaft) |
Required Sensors/Components (Related) | Crankshaft position sensor |
Frequency of Operation | Continuous |
Duration | 4 seconds |
MIL Operation | Immediate |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
All of the following conditions are met | - |
Power switch | On (IG) |
Time after power switch off to on (IG) | 2 seconds or more |
Auxiliary battery voltage | 8 V or higher |
Camshaft position sensor pulse input fail (P0340) | Not detected |
TYPICAL MALFUNCTION THRESHOLDS
P0342: Range Check (Low Voltage) Camshaft position sensor voltage | Less than 0.3 V |
Camshaft position sensor voltage | Higher than 4.7 V |
CONFIRMATION DRIVING PATTERN
HINT:
Click here
Click here
HINT:
Techstream Display | Description |
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NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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(Select Powertrain in Health Check and then check the time stamp data.)
Click here
Click here
HINT:
Read Freeze Frame Data using the Techstream. 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
1. | CHECK HARNESS AND CONNECTOR |
*a | Front view of wire harness connector (to Camshaft Position Sensor (for Intake Camshaft)) |
HINT:
Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.
(a) Disconnect the camshaft position sensor (for intake camshaft) connector.
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
C51-3 (VC) - Body ground | Power switch on (IG) | 4.5 to 5.5 V |
C51-1 (VVI+) - Body ground | Power switch on (IG) | 3.0 to 5.0 V |
(d) Turn the power switch off and wait for at least 30 seconds.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
C51-3 (VC) - C51-1 (VVI+) | Power switch off | 1.425 to 1.575 kΩ |
C51-2 (VVI-) - Body ground | Always | Below 1 Ω |
OK | REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) |
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2. | CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) - ECM) |
(a) Disconnect the camshaft position sensor (for intake camshaft) connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
C51-1 (VVI+) - C88-90 (VV1+) | Always | Below 1 Ω |
C51-2 (VVI-) - C88-89 (VV1-) | Always | Below 1 Ω |
C51-3 (VC) - C88-88 (VCV1) | Always | Below 1 Ω |
C51-1 (VVI+) or C88-90 (VV1+) - Body ground and other terminals | Always | 10 kΩ or higher |
C51-2 (VVI-) or C88-89 (VV1-) - Body ground and other terminals | Always | 10 kΩ or higher |
C51-3 (VC) or C88-88 (VCV1) - Body ground and other terminals | Always | 10 kΩ or higher |
OK | REPLACE ECM |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |