DTC P0340
Precautions: General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
P0340: Camshaft Position Sensor “A” Circuit Any of the following condition is met.
•CMP sensor signal is not inputted while CKP sensor signal is being inputted. (3 D/C detection logic)•CMP sensor signal pattern is not equal to the expected pattern. |
•CMP sensor and/or its circuit
•Signal rotor •ECM |
Circuit Diagram
| [A]: | ECM connector (View: [a]) | B1: | CKP sensor power supply circuit | 2. | CKP sensor |
| A1: | CMP sensor power supply circuit | B2: | CKP sensor signal circuit | 3. | ECM |
| A2: | CMP sensor signal circuit | B3: | CKP sensor ground circuit | ||
| A3: | CMP sensor ground circuit | 1. | CMP sensor |
DTC Confirmation Procedure
1)Run engine at idle speed for 5 min.
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Was “Engine and Emission Control System Check” performed?
|
Go to Step 2.
|
|
| 2 |
CMP sensor power supply circuit check
1)With ignition “OFF”, disconnect CMP sensor connector.
2)Check for proper terminal connection to CMP sensor connector.
3)If connection is OK, set ignition “ON”.
4)Check that voltage between “A1” and “A3” is battery voltage.
Is check result OK?
|
Go to Step 4.
|
Go to Step 3.
|
| 3 |
CMP sensor ground circuit check
1)Check that voltage between “A1” and ground is battery voltage.
Is check result OK?
|
Repair “A3” circuit.
|
Repair “A1” circuit.
|
| 4 |
CMP sensor signal circuit check
1)With ignition “OFF”, disconnect “C01” and “E01” connectors from ECM.
2)Check for proper terminal connection to “C01” and “E01” connectors.
3)If connections are OK, check the following points.
•Resistance of “A2” circuit: less than 1 Ω
•Resistance between “A2” circuit and ground: infinity •Resistance between “A2” circuit terminal and other terminal at CMP sensor connector: infinity •Voltage of “A2” circuit: approx. 0 V (When ignition is “ON”) Is check result OK?
|
Go to Step 5.
|
Repair or replace defective wire harness.
|
| 5 |
CMP sensor and signal rotor check
1)Check CMP sensor and signal rotor.
Is check result OK?
|
Replace ECM and recheck DTC.
|
Repair or replace defective parts.
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