Powertrain, generic · Ignition system or misfire

P0348 Camshaft Position Sensor A Circuit High Bank 2

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

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 petrol engines report such faults under P0345. Result: cam timing on bank 2 switched off, loss of power.

Likely causes

Bank 2 signal wire open or shorted to positive
Sensor ground open
Camshaft position sensor bank 2 faulty
Connector corroded

Symptoms

  • Check engine light on
  • Longer cranking before the engine starts
  • Loss of power (cam timing held in its base position)
  • Rough idle, occasionally stalling

Repair estimate

DifficultyMediumDIY possible
Parts and labour€30–350
Time0.5–2.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

camshaft position sensorcamshaft tone wheelsensor wiringengine control module

Related codes

P0343P0345P0347P0393

References: saabwisonline.com, fordservicecontent.com, law.cornell.edu, hella.com.