2002 S60 OBD Comprehensive Component Not Ready

[S60TomP]

I need some help deciphering OBD speak and figuring out my next step.

My 2002 S60, base model with 183000 miles, failed NJ Inspection apparently owing to the OBD Comprehensive Component reporting a ‘NOT READY’ Status. The other listed OBD items (full list below) reported a status of ‘READY’ or ‘UNSUPPORTED’. The test was done twice about 10 minutes apart and by two different techs and stations. The report also indicates no trouble codes in the system.

So, I guess my question is whether ‘NOT READY’ indicates a problem with the OBD itself or some external problem preventing it from entering a ‘READY’ state?

Engine Misfire READY
Fuel System READY
Comprehensive Component NOT READY
Catalytic Converters READY
Heated Catalytic Converters UNSUPPORTED
Evaporative System READY
Secondary Air Injection UNSUPPORTED
A/C Refrigerant UNSUPPORTED
Oxygen Sensors READY
Oxygen Sensors – Heaters READY
EGR Systems UNSUPPORTED

[jimmy57]

Comprehensive monitor is a catch-all category that is not well defined.
Volvo's tools don't use that term.
The car needs to be checked for transmission codes as these can have a bearing for OBD-ii readiness. This will have to be done with a full support tool like VIDA, Autologic, or Launch with the full level of support.
I'm also curious if the equipment NJ uses considers tank leakage diagnostics in the evaporative system readiness.

Tank leakage on that car is the vacuum system and that system can abort repeatedly and not be ready and not have codes. The first phase of the test evaluates if the test can run based on whether a determination of excess vapor activity is detected.
A faulty tank pressure sensor can make the vapor activity seem to be overactive when it isn't. Monitoring the tank pressure sensor for stability when the car has sat overnight and fuel and temps are cool is a way to check the sensor but it is not an exact way nor a factory way to test it. If the pressure is stable and accurate with fuel cap off then it is good usually. If the pressure is fluctuating and too high or too low then it is bad and is causing leakage test to not complete.
Of course this all is based on the supposition that leakage test is the reason for the comprehensive fail.

[S60TomP]

Thanks Jimmy. The evaporative system reported a READY status so if that's where tank leakage is measured i'd guess that's what would fail. I don't see any indication of tank leakage, not that i necessarily would, but i did fill the tank about a half hour before the test. Could that be a factor? [again assuming any failure tracks to the comprehensive]