DTC P0340 [L3]: Notes
DTC P0340 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES
| DTC P0340 |
CMP sensor circuit problem |
| DETECTION CONDITION |
- The PCM monitors input voltage from the CMP sensor when the engine is running. If the CMP sensor signal timing inferred from the CKP sensor signal has deviated, PCM determines that CMP circuit has malfunction.
- Malfunction is detected in the input pulse pattern from the CMP sensor.
Diagnostic support note
- This is a continuous monitor (CCM).
- MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA is available.
- DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- CMP sensor malfunction
- Connector or terminal malfunction
- CMP sensor is dirty
- Short to the power circuit between CMP sensor terminal B and PCM terminal 2S
- Short to ground circuit between CMP sensor terminal C and PCM terminal 2AM
- Short to ground circuit between CMP sensor terminal B and PCM terminal 2S
- Open circuit between CMP sensor terminal A and body ground
- Open circuit between CMP sensor terminal B and PCM terminal 2S
- Open circuit between CMP sensor terminal C and PCM terminal 2AM
- Both CMP sensor wires are shorted to each other
- CKP sensor pulse wheel malfunction
- CKP sensor misinstallation
- Timing chain misinstallation
- Loose timing chain or improper valve timing
- Loose camshaft sprocket lock bolt
- Loose crankshaft pulley lock bolt
- PCM malfunction
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