P0390 - Camshaft Position Sensor B Circuit (Bank 2)
P0390 - CAMSHAFT POSITION SENSOR B CIRCUIT (BANK 2)
| Description: |
This DTC sets when the CMP21 (6.2L) or CMP22 (all others) circuit signal can not be detected. For additional camshaft position (CMP) sensor location information, refer to ENGINE CONTROL COMPONENTS
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| Possible Causes: |
- CMP21 circuit open (6.2L)
- CMP22 circuit open (all others)
- CMP21 circuit short to ground (6.2L)
- CMP22 circuit short to ground (all others)
- CMP21 circuit short to voltage (6.2L)
- CMP22 circuit short to voltage (all others)
- SIGRTN circuit open
- VRSRTN circuit open
- CMP21 circuit shorted to other CMP circuits (6.2L)
- CMP22 circuit shorted to other CMP circuits (all others)
- Camshaft timing incorrectly set
- Camshaft position sensor trigger wheel out of alignment
- Damaged camshaft position bank 2 sensor 1 (CMP21) shielding (6.2L)
- Damaged camshaft position bank 2 sensor 2 (CMP22) shielding (all others)
- CMP21 sensor incorrectly installed (6.2L)
- CMP22 sensor incorrectly installed (all others)
- Damaged CMP21 sensor (6.2L)
- Damaged CMP22 sensor (all others)
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| Diagnostic Aids: |
Harness routing, harness alterations, incorrect shielding, or electrical interference from other systems may have an intermittent impact on the CMP signal. |
| Application |
Key On Engine Off |
Key On Engine Running |
Continuous Memory |
| All |
GO to Pinpoint Test DR
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