P2655"A" Rocker Arm Actuator Control Circuit/Open (Bank 2)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2655 is the bank 2 twin of P2645: on a V or boxer engine with a separate rocker arm actuator per cylinder bank, the drive circuit of actuator A on the side without cylinder 1 is open, so the state the controller sets and the state it sees on the wire differ. No manufacturer documents P2655 publicly. As an analogy, GM's 2015 table 15OBDG05 runs the bank 1 version with 100 failures out of 120 samples at 250 ms intervals and a Type A MIL. A broken wire in the harness running across the engine, a backed-out terminal or an open coil are plausible. Only bank 2 then loses lift switching, which can make the banks run unevenly and cause rough running.
- What you may notice
- MIL on
- Banks run unevenly, slight roughness
- Reduced power or economy
- Likely causes
- PossibleBroken wire in the harness to the bank 2 solenoid
- PossibleTerminal pushed out of the connector housing
- PossibleOpen coil in the bank 2 oil control solenoid
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €60 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.