Powertrain Definition only Lights the check engine lamp

P2660: B Rocker Arm Actuator Control Circuit / Open Bank 2

Standardized SAE J2012 code · P26xx — Computer and output circuits

What does P2660 mean?

The controller cannot drive the rocker arm switching actuator B on bank 2.

The code tells you which monitor failed, not which part is broken. Test before replacing parts.

Common causes

  • High Open coil in oil control valve
  • Medium Broken control wire

Likelihood is a general estimate across vehicles; your make and model may differ.

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