Error code

OBD2 P0345

OBD2P0345
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Camshaft Position Sensor 'A' Circuit.

Severity

moderateThe vehicle may be drivable but will likely experience poor performance.

Summary

P0345 indicates a malfunction in the camshaft position sensor circuit for bank 2 on engines with two banks.

Symptoms

  • No-start or start-stall condition
  • Hard starting, rough running, misfiring, poor acceleration

Common Causes

  • Faulty camshaft position sensor (CMP) coil
  • Poor installation of the CMP sensor with incorrect clearance to the reluctor ring
  • Electrical interference from alternator phase problems in Ford vehicles
  • Rodent damage to wiring or connectors
  • Connector breakage and wire insulation damage due to aging

Diagnosis

  1. Visual inspection of the CMP sensor connection
  2. Resistance check on the disconnected CMP sensor
  3. Signal check using a DVOM in AC V mode
  4. Electrical inspection for open or short circuits

Fixes

  • Replace faulty camshaft position sensor

FAQ

Can I drive with P0345?

The vehicle may be drivable but will likely experience poor performance and starting issues.

What causes P0345?

Common causes include a faulty CMP sensor, incorrect installation, electrical interference, rodent damage, or aging wiring.

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.