Dtc P0340 Camshaft Position Sensor Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT CRANKSHAFT POSITION SENSOR
CHECK HARNESS AND CONNECTOR (ECM - CRANKSHAFT POSITION SENSOR)
DTC P0340 Camshaft Position Sensor Circuit |
DESCRIPTION
The crankshaft position sensor in the engine control system contains a signal plate and a pickup coil for the TDC signal. The TDC signal plate has 1 tooth on its outer circumference. The TDC signal sensor generates 1 signal for every engine revolution. The ECM detects the top dead center by the TDC signals.DTC No.
| DTC Detection Condition
| Trouble Area
|
P0340
| No TDC signal to ECM at 400 rpm or more.
| - Open or short in crankshaft position sensor circuit
- Crankshaft position sensor
- ECM
|
WIRING DIAGRAM
Refer to DTC P0335 (LandCruiser RM000000VQV007X_03.html).
INSPECTION PROCEDURE
- HINT:
- Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
| 1.INSPECT CRANKSHAFT POSITION SENSOR |
Check the crankshaft position sensor installation.
Inspect the crankshaft position sensor.
| 2.CHECK HARNESS AND CONNECTOR (ECM - CRANKSHAFT POSITION SENSOR) |
Disconnect the crankshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
C109-1 - C162-26 (TDC+)
| Always
| Below 1 Ω
|
C109-2 - C162-34 (TDC-)
| Always
| Below 1 Ω
|
C109-1 or C162-26 (TDC+) - Body ground
| Always
| 10 kΩ or higher
|
C109-2 or C162-34 (TDC-) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|