2013 Reflash question

[Powder Extreme]

I asked in another thread that mentioned a Reflash but evidently techs didn't see it, so here goes again.



Can somebody tell me what the Reflash does for the 2013?



Average highway use with some mixed towing thrown in, how long "should" a tank of DEF last?

I realize there are a lot of variables, but I am driving the truck the same way I drive my Duramax and it is using over twice the amount of DEF. is that normal?



I also feel a slight "surging" at light throttle settings on the highway and in town. Does the Reflash address that?



Thanks!



I asked the service writer at a dealer when i was traveling, but he had absolutely no clue. This was also the same guy who explained DEF is what cleans the DPF and the truck no longer uses diesel to regen, it uses DEF. so evidently my truck needed to regen a lot since it used so much DEF. I let him go on for a minute and asked why my truck would need to regen a lot when it has only been driven for long highway trips and some of it was towing trailers? He said he wasn't sure, some trucks are different than others. Then he proceeded to tell another couple how the truck has a compression brake just like a semi does. At that point I gave up and left.

 

[SNiebaum]

Supposedly a new flash came out today...

 

[Powder Extreme]

So that's Two new flashes, anybody actually know what they update?

 

[EDankievitch]

I'm not 100% sure but I think one of the flashes has to do with the transmission shifting. The 13 that I just picked up drove very different when I test drove it than it does after I picked it up. The engine rpm does not surge up as much when it shifts.

 

[Powder Extreme]

Which transmission do you have?

 

[Bob4x4]

18-018-13 REV. B

Trip Fault And Should Have Been A Two Trip Fault:
** P049D-EGR CONTROL POSITION EXCEEDED LEARNING LIMIT **
· P0711 - TRANSMISSION TEMPERATURE SENSOR PERFORMANCE
· P071218-0 - TRANSMISSION TEMPERATURE SENSOR LOW
· P0713 - TRANSMISSION TEMPERATURE SENSOR HIGH
· P0714 - TRANSMISSION TEMPERATURE SENSOR INTERMITTENT
· P0740 - TCC OUT OF RANGE
· P0869 - LINE PRESSURE HIGH
· P0933 - HYDRAULIC PRESSURE SENSOR RANGE/PERFORMANCE
· P0934 - LINE PRESSURE SENSOR CIRCUIT LOW
· P0935 - LINE PRESSURE SENSOR CIRCUIT HIGH
· P1775 - SOLENOID SWITCH VALVE LATCHED IN TCC POSITION
· P1776 - SOLENOID SWITCH VALVE LATCHED IN LR POSITION
· U0100 - LOST COMMUNICATION WITH ECM/PCM
· U0002 - CAN C BUS OFF PERFORMANCE - BUS OFF
Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL)
Illumination For:
· P026A - CHARGE AIR COOLER EFFICIENCY BELOW THRESHOLD
· P0544 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT - BANK 1 SENSOR 1
· P0562 - BATTERY VOLTAGE LOW
· ** P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1
(Additional software enhancements to prevent false MIL) **
· P2201 - AFTERTREATMENT NOx SENSOR CIRCUIT PERFORMANCE - BANK 1
SENSOR 1
· P2281 - AIR LEAK BETWEEN MAF AND THROTTLE BODY
· P24A5 - EGR COOLER BYPASS BANK 1 CONTROL STUCK
· ** P2459 - DIESEL PARTICULATE FILTER REGENERATION TOO FREQUENT
(Additional software enhancements to prevent false MIL) **
· P249E - CLOSED LOOP SCR REDUCTA
Other Updates:
· With the ignition in the “Run” position, engine not running, a small number of
customers may experience a message in the Vehicle Information Center that states
“Service Exhaust System - see dealer” erroneously.
· ** Doser Thaw Calibrations (with proper doser calibration). Ensure SB 18-XXX-13
(or later bulletin) is also completed to update Doser Control Unit (DCU) **
· ** I/M OBD II readiness - DTC P2002 improvements help Particulate Matter (PM)
Filter monitor group to be set to ready more often **
· Add engine run time to fuel filter minder.
· Remove MIL for DTC; P1C70 - SCR ERROR DETECTED - ENGINE DISABLED
· Frozen CAC Diagnostic Improvement
· WiTECH - Reset fix (PTO request on Pickup)
· WiTECH - Road Governor Speed Upper Limit adjustment

 

[Bob4x4]

There is also a flash for the doser control unit that should be done at the same time

 

[Powder Extreme]

I'm assuming the doser is what adds urea?

Thanks for the info

 

[SNiebaum]

I believe the newest flash is 18-026-13

 

[Bob4x4]

Pick ups and c/c are different