P0348 code meaning
Camshaft Position Sensor A Circuit High Bank 2
Powertrain system Generic code P03xx codes Check engine light
What P0348 means
P0348 is the bank 2 counterpart of P0343: the signal of the intake camshaft sensor on the side without cylinder 1 stays at supply level without edges. Causes are a signal wire shorted to positive, an open signal wire held high by the module's pull-up, a broken sensor ground or a faulty sensor. A code-specific manufacturer description exists only from GM: on the Saab 9-4X V6 (GM LAU) the signal must stay high without pulses for more than 1 s, or 10 s cumulatively, and the code follows after two trips. Ford's 2023 diesel shows the same check on bank 1 (P0343: system voltage over 10 or more crank revolutions). Other GM engines and Ford gasoline engines report such faults under P0345. Result: cam timing on bank 2 switched off, loss of power.
P0348 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2.5 hours
- Clears after repairAfter a drive cycle
Symptoms of P0348
- Check engine light on
- Longer cranking before the engine starts
- Loss of power (cam timing held in its base position)
- Rough idle, occasionally stalling
Common causes of P0348
- Most likelyBank 2 signal wire open or shorted to positive
- PossibleSensor ground open
- PossibleCamshaft position sensor bank 2 faulty
- PossibleConnector corroded
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Camshaft position sensorCamshaft tone wheelSensor wiringEngine control module
What each part of P0348 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 3 | Area: ignition system or misfire. |
| 48 | The exact fault in that area. |
What to do next
- Note P0348 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0348
What does P0348 mean?
P0348 means "Camshaft Position Sensor A Circuit High Bank 2". P0348 is the bank 2 counterpart of P0343: the signal of the intake camshaft sensor on the side without cylinder 1 stays at supply level without edges. It is a generic code, so it means the same on every make.
Is it safe to drive with P0348?
Drive gently and only to a workshop. With P0348 the car can go into limp mode (reduced power) to protect itself.
Will P0348 fail an emissions test?
Yes, it can. P0348 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0348 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P0348 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.