I posted in the thread asking him how he got it.
The manufacturers sometimes do include a few extra codes over top of OBDII, but definitely NOT all of them.
Are you performing the Key Dance successfully? If you are, you would get a message in the EVIC stating there are NO codes, or "End of Report" if you were. The Key Dance is easy to screw up, most people don't get it right the first dozen times they try, watching the youtube video helps. So its possible, you thought you did the Key Dance properly and since nothing happened you assumed you didn't have any codes, in reality you did it wrong and never got the codes to spit out. Getting the message in the EVIC indicating the DTC report has ended is the key to telling if you did it correctly.
As well, you may have a different problem and codes than what was in the other thread. That guy was lucky, his problem's DTC got included with the Mandated OBDII DTC's that the GOV makes the manufacturers provide the owners easily. You're unlucky, in the fact what ever DTC you have, did NOT get included with the Mandated OBDII codes, and thus can't read them without the expense or hassle.
Regardless, if you have a "4WD Service" you have stored DTC's, its just the Key Dance will NOT spit them out like the other codes for the Engine and a few for Transmission and Drivetrain, that can effect emissions. The manufacturer may have included a few more, but there is still a lot of codes the manufacturer keeps from you.
BTW, "the ABS starts pulsating every now and then (when not supposed to)" can happen with a perfectly good working ABS system. Do you have ABS Warning Lights on in the Dash? If you do NOT have an ABS Warning Lamp on the Dash, likely you do NOT have any ABS codes, or at least NO ABS codes important enough to effect ABS performance and vehicle safety.
Do you have oversized tires on the vehicle? That throws off the RPM relationship and can activate the ABS at improper times. It can be corrected by having the new tire diameter programmed into the correct model handling the traction control and ABS.
Do you understand fully how the ABS/Tract Control/ESP/Roll Mitigation/Wheel Slip Limiting, etc all work for the Commander? No longer does the ABS module simply operate to prevent wheels locking up while braking, it operates all the time to maintain wheel traction if a wheel slips in mud/snow/ice. It will activate if you go around a turn to fast to try to prevent roll over, etc,. If it sense your about to fish tail or spin out, the ABS activates to prevent it, etc. So there are a lot of people that don't understand fully how the systems on their vehicles work and think something is wrong because the ABS activated, when in reality the ABS was doing exactly what it is suppose to do, the driver just didn't know what its suppose to do.
Believe me if you're driving up a hill in mud or wet grass, your ABS will be going off every few seconds, and it is suppose to, in order to keep your wheels from spinning and losing traction. Even driving over level ground in snow/ice/mud/wet grass (i.e. low traction conditions) will activate ABS without ever touching the brake pedal.
Finally, you've got a "Service 4WD" warning light, BUT do NOT have an ABS Warning Light, I think you're jumping to conclusion thinking its a Wheel Speed Sensor.
There are multiple threads on the Service 4WD light, how a software update can cause it erroneously, and how a subsequent even later software update can fix it. The fact a Transfer Case shift motor or Final Drive Control Module failing can cause it as well (indicating a real problem that needs to be fixed) and is a common failure on the Commander.
Last edited by Mongo; 04-18-2016 at 10:04 AM.