7GR-FKS ENGINE CONTROL SFI SYSTEM P034031 Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal P034531 Camshaft Position Sensor "A" Bank 2 No Signal
DESCRIPTION
Refer to DTC P034011.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P034031 | Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal | A missing VVT sensor (for intake camshaft of bank 1) signal despite the crankshaft position sensor inputs being normal at an engine speed of 600 rpm or higher (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) ·
Intake camshaft ·
Valve timing ·
ECM |
Comes on | DTC stored | SAE Code: P0340 |
| P034531 | Camshaft Position Sensor "A" Bank 2 No Signal | A missing VVT sensor (for intake camshaft of bank 2) signal despite the crankshaft position sensor inputs being normal at an engine speed of 600 rpm or higher (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) ·
Intake camshaft ·
Valve timing ·
ECM |
Comes on | DTC stored | SAE Code: P0345 |
Reference: Inspection using an oscilloscope.
MONITOR DESCRIPTION
If no pulse signal is transmitted by the VVT sensor (for intake camshaft) despite the camshaft rotating the ECM interprets this as a malfunction of the sensor.
MONITOR STRATEGY
| Required Sensors/Components (Main) | VVT sensor (for intake camshaft) |
| Required Sensors/Components (Related) | Crankshaft position sensor |
| Frequency of Operation | Continuous |
CONFIRMATION DRIVING PATTERN
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for at least 30 seconds.
Start the engine [A].
Idle the engine for 10 seconds or more [B].
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Trouble Codes [C].
Read the pending DTCs.
- HINT:
- ·
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: P034031 or P034531.
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 |
- HINT:
- ·
If the judgment result is NORMAL, the system is normal.
·If the judgment result is ABNORMAL, the system is malfunctioning.
·If the judgment result is INCOMPLETE, perform steps [B] through [C] again.
WIRING DIAGRAM
Refer to DTC P034011.
CAUTION / NOTICE / HINT
- HINT:
- ·
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
| *a | Front view of wire harness connector
(to VVT Sensor (for Intake Camshaft)) |
| *b | Bank 1 |
| *c | Bank 2 |
- HINT:
-
Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.
Disconnect the VVT sensor (for intake camshaft) connector.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition E55-3 (VC) - Body ground Ignition switch ON 4.5 to 5.5 V E56-3 (VC) - Body ground Ignition switch ON 4.5 to 5.5 V E55-1 (VVR+) - Body ground Ignition switch ON 3.0 to 5.0 V E56-1 (VVL+) - Body ground Ignition switch ON 3.0 to 5.0 V
Turn the ignition 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 E55-3 (VC) - E55-1 (VVR+) Ignition switch off 1.425 to 1.575 kΩ E56-3 (VC) - E56-1 (VVL+) Ignition switch off 1.425 to 1.575 kΩ E55-2 (VVR-) - Body ground Always Below 1 Ω E56-2 (VVL-) - Body ground Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG
| *a | Clearance |
Visually check the VVT sensor (for intake camshaft) for damage.
Check the VVT sensor (for intake camshaft) installation condition.
- OK:
The VVT sensor (for intake camshaft) does not have any damage and is installed properly.
- Result:
Proceed to OK NG
OK
NG
Check the timing rotor of the intake camshaft.
- OK:
Camshaft timing rotor does not have any cracks or deformation.
- HINT:
-
Perform "Inspection After Repair" after replacing the intake camshaft.
- Result:
Proceed to OK NG
OK
NG
Disconnect the VVT sensor (for intake camshaft) connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E55-1 (VVR+) - E1-31 (VV1+) Always Below 1 Ω E55-2 (VVR-) - E1-21 (VV1-) Always Below 1 Ω E55-3 (VC) - E1-20 (VCV1) Always Below 1 Ω E56-1 (VVL+) - E1-19 (VV2+) Always Below 1 Ω E56-2 (VVL-) - E1-28 (VV2-) Always Below 1 Ω E56-3 (VC) - E1-18 (VCV2) Always Below 1 Ω E55-1 (VVR+) or E1-31 (VV1+) - Body ground and other terminals Always 10 kΩ or higher E55-2 (VVR-) or E1-21 (VV1-) - Body ground and other terminals Always 10 kΩ or higher E55-3 (VC) or E1-20 (VCV1) - Body ground and other terminals Always 10 kΩ or higher E56-1 (VVL+) or E1-19 (VV2+) - Body ground and other terminals Always 10 kΩ or higher E56-2 (VVL-) or E1-28 (VV2-) - Body ground and other terminals Always 10 kΩ or higher E56-3 (VC) or E1-18 (VCV2) - Body ground and other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG