P2660: B Rocker Arm Actuator Control Circuit Open Bank 2
What to do
Check the oil level and service history first. Confirm what the B actuator is on your engine before a part is ordered — the letters are manufacturer-assigned rather than standardised, as explained at P2650.
What this code means
An open circuit in the control of the B rocker arm actuator on bank 2. The mechanism is at P2645, what B refers to at P2650, and the one-bank-versus-both reasoning at P2655.
This is the last member of the family, and the four groups together map the system completely: A and B on each of two banks, which is why an engine with all four can shut down or re-time twice as much as one with two.
Likely causes
Start here
- Open circuit in control wiring · moderate
- Corroded or loose connector · easy
- Faulty valve lift control solenoid · moderate
Less common
- Damaged wiring harness · moderate
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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