P2662 code meaning
"B" Rocker Arm Actuator System Stuck On (Bank 2)
Powertrain system Generic code P26xx codes Check engine light
What P2662 means
With P2662 the controller concludes that stage B on bank 2 stays switched after it has requested the default mode. Detection depends on the design: a pressure switch that keeps indicating oil pressure, or engine behaviour on that bank that still matches the engaged state. A solenoid that seeps oil when closed, a return path that cannot drain, or locking pins jammed by debris or wear keep the rockers coupled. Because only one bank is affected, the engine may idle unevenly or misfire on that side, especially when cold. No manufacturer documents P2662 publicly; Honda's published stuck-on case for stage B (P2652) refers to bank 1. CARB requires such stuck conditions in valve lift systems to be detected. Opposite fault on this bank: P2661.
P2662 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 4 hours
- Clears after repairAfter a drive cycle
Symptoms of P2662
- MIL on
- Uneven idle or misfire on bank 2, worse when cold
Common causes of P2662
- Most likelyBank 2 solenoid B seeping oil when closed
- PossibleBlocked drain path keeping oil pressure on the rockers
- PossibleLocking pins jammed in the coupled position by debris or wear
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Rocker arm actuator b b2Oil control valve
What each part of P2662 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 6 | Area: computer (engine control module) and output circuits. |
| 62 | The exact fault in that area. |
What to do next
- Note P2662 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 P2662
What does P2662 mean?
P2662 means ""B" Rocker Arm Actuator System Stuck On (Bank 2)". With P2662 the controller concludes that stage B on bank 2 stays switched after it has requested the default mode. It is a generic code, so it means the same on every make.
Is it safe to drive with P2662?
Drive gently and only to a workshop. With P2662 the car can go into limp mode (reduced power) to protect itself.
Will P2662 fail an emissions test?
Yes, it can. P2662 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 P2662 to fix?
Difficulty: medium. A typical repair takes 0.5 to 4 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2662 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.