Back to 2010 Mazda Mazda3

2010 MAZDA MAZDA3

2.5L I4FWDAUTOMATICgas
3 active safety recalls on this vehicle — view recalls
Repairs0Labor479Torque3805Fluid6DTC889Battery0Maintenance0Recalls3
P0342high severityPowertrain

Camshaft Position Sensor A Circuit Low Bank 1

on 2010 Mazda Mazda3 2.5L I4 · FWD

What this code means

Low or no signal from CMP sensor A Bank 1.

Symptoms

  • Check Engine Light
  • Hard starting
  • No start

Common causes

  • Faulty sensor
  • Short to ground
  • Wiring issue

Diagnostic steps

  1. Test sensor
  2. Check for shorts
  3. Inspect wiring

Repair notes

Replace sensor or repair wiring.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →