P0342, P0343, P0347, P0348

DTC Code	DTC Name
P0342	Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor)
P0343	Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor)
P0347	Camshaft Position Sensor "A" Circuit Low Input (Bank 2)
P0348	Camshaft Position Sensor "A" Circuit High Input (Bank 2)

DESCRIPTION

Refer to DTC P0340.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P0342	Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor)	The output voltage of the VVT sensor is less than 0.3 V for 4 seconds (1 trip detection logic).	Open or short in VVT sensor (for intake camshaft of bank 1) circuit VVT sensor (for intake camshaft of bank 1) ECM	Comes on	DTC stored
P0343	Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor)	The output voltage of the VVT sensor is higher than 4.7 V for 4 seconds (1 trip detection logic).	Open or short in VVT sensor (for intake camshaft of bank 1) circuit VVT sensor (for intake camshaft of bank 1) ECM	Comes on	DTC stored
P0347	Camshaft Position Sensor "A" Circuit Low Input (Bank 2)	The output voltage of the VVT sensor is less than 0.3 V for 4 seconds (1 trip detection logic).	Open or short in VVT sensor (for intake camshaft of bank 2) circuit VVT sensor (for intake camshaft of bank 2) ECM	Comes on	DTC stored
P0348	Camshaft Position Sensor "A" Circuit High Input (Bank 2)	The output voltage of the VVT sensor is higher than 4.7 V for 4 seconds (1 trip detection logic).	Open or short in VVT sensor (for intake camshaft of bank 2) circuit VVT sensor (for intake camshaft of bank 2) ECM	Comes on	DTC stored


*a	5 V/DIV.
*b	20 ms./DIV.

Reference: Inspection using an oscilloscope.

Tech Tips

The correct waveform is as shown.
The wavelength becomes shorter as the engine speed increases.

ECM Terminal Name

CH1: Between VV1+ and VV1-

CH2: Between VV2+ and VV2-

Tester Range

5 V/DIV., 20 ms./DIV.

Condition

Idling with warm engine

MONITOR DESCRIPTION

If the output voltage transmitted by the vvt sensor remains low or high, the ECM interprets this as a malfunction in the sensor circuit, illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Required Sensors/Components (Main)	VVT 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).
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).
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: P0342, P0343, P0347 or P0348.

Check the DTC judgment result.

GTS Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions
N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

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 or N/A, perform steps [A] and [B] again.

WIRING DIAGRAM

Refer to DTC P0340.

Click here

CAUTION / NOTICE / HINT

Tech Tips

If no problem is found through this diagnostic troubleshooting procedure, there may be a mechanical problem with the engine.
Bank 1 refers to the bank that includes the No. 1 cylinder*.

*: The No. 1 cylinder is the cylinder which is farthest from the transmission.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
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 HARNESS AND CONNECTOR

*a

Front view of wire harness connector

(to VVT Sensor (for Intake Camshaft))

*b

Bank 1

*c

Bank 2

Disconnect the VVT 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

Tester Connection	Switch Condition	Specified Condition
G61-3 (VC) - Body ground	Engine switch on (IG)	4.5 to 5.5 V
G60-3 (VC) - Body ground	Engine switch on (IG)	4.5 to 5.5 V
G61-1(VVL+) - Body ground	Engine switch on (IG)	3.0 to 5.5 V
G60-1(VVR+) - Body ground	Engine switch on (IG)	3.0 to 5.5 V

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

Tester Connection	Condition	Specified Condition
G61-3 (VC) - G61-1 (VVL+)	Engine switch off	1.425 to 1.575 kΩ
G60-3 (VC) - G60-1 (VVR+)	Engine switch off	1.425 to 1.575 kΩ
G61-2 (VVL-) - Body ground	Always	Below 1 Ω
G60-2 (VVR-) - Body ground	Always	Below 1 Ω

Result

Proceed to
OK
NG

OK

REPLACE VVT SENSOR (FOR INTAKE CAMSHAFT) Click here

NG

CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE CAMSHAFT) - ECM)

Disconnect the VVT sensor (for intake camshaft) connectors.
Disconnect the ECM connector.
Disconnect the crankshaft position sensor connector.
Disconnect the VVT sensor (for exhaust camshaft) connectors.
Disconnect the camshaft position sensor connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
G61-3 (VC) - G42-90 (VC)	Always	Below 1 Ω
G60-3 (VC) - G42-90 (VC)	Always	Below 1 Ω
G61-1 (VVL+) - G42-138 (VV1+)	Always	Below 1 Ω
G61-2 (VVL-) - G42-106 (VV1-)	Always	Below 1 Ω
G60-1 (VVR+) - G42-135 (VV2+)	Always	Below 1 Ω
G60-2 (VVR-) - G42-103 (VV2-)	Always	Below 1 Ω
G61-3 (VC), G60-3 (VC) or G42-90 (VC) - Body ground and other terminals	Always	10 kΩ or higher
G61-1 (VVL+) or G42-138 (VV1+) - Body ground and other terminals	Always	10 kΩ or higher
G61-2 (VVL-) or G42-106 (VV1-) - Body ground and other terminals	Always	10 kΩ or higher
G60-1 (VVR+) or G42-135 (VV2+) - Body ground and other terminals	Always	10 kΩ or higher
G60-2 (VVR-) or G42-103 (VV2-) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

OK

REPLACE ECM Click here

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P0342, P0343, P0347, P0348