What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
3Original wording in English
HONDA
Reported code forms P2646
"SERVICE BULLETIN - THE MIL COMES ON WITH ONE OF THESE DTCS: • P2646/P2651 (ROCKER ARM OIL PRESSURE SWITCH CIRCUIT LOW VOLTAGE). • P2647/P2652 (ROCKER ARM OIL PRESSURE SWITCH CIRCUIT HIGH VOLTAGE). NOTE: THE SYMPTOM MAY…
HONDA
Reported code forms P2646
HONDA: DTC P2646/P2651 OR P2647/2652 MAY BE SET. THE ROCKER ARM OIL PRESSURE SWITCH MAY NEED TO BE REPLACED. ALSO INCLUDED MODEL CIVIC SI MODEL YEAR 2002-2005. *JS
HONDA
Reported code forms P2646
DIAGNOSTIC TROUBLE CODE (DTC) P2646, P2647, P2649 OR P1009. *TT
Check vehicle applicability
9A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.