PCM Flash 32370231AJ

[grabinov]

Hey Guys,

I know folks have been asking about flashes for various things. My 2014 just went in for its first service (Oil change at 5,000 cause I wanted it not cause I needed it) and they performed PCM flash 32370231AJ (TSB 18-053-14). My truck was working fine so this must just be a "standard" update. Does anyone know what it is? I bought the truck in July and that was the only flash. All other software must have been up to date, meaning it hasn't changed since July (or before).

This is on a 2500 Megacab / 68RFE Laramie.

BTW when I had the oil changed the "change oil now" meter still showed 67% oil life remaining. And that's after 4,100 miles of towing (a 13,000 pound 5th wheel) on a truck with only 5,100 miles on it.

 

[sag2]

Just fixes a couple of things.

SYMPTOM/CONDITION:
Several software improvements are available for vehicles equipped with a Cummins 6.7L
turbo diesel. They are as follows:
Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For
The Following DTCs. These Faults Have Been Changed From One Trip Faults To
Two Trip Faults:
· ** P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes. **
· ** U110E - Lost Ambient Temperature Message. **
· P049D - EGR Control Position Exceeding Learning Limit.
· P226C - Turgocharger Boost Control “A” Slow Response.
The Following DTC Has Been Changed From A Two Trip Fault To One Trip Fault:
NUMBER: 18-053-14
GROUP: Vehicle Performance
DATE: October 07, 2014
· ** U1A24 - Lost Communication With Ammonia Sensor. **
Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL)
Illumination For:
· ** P0087 - Fuel Rail Pressure Too Low. **
· ** P2281 - Air Leak Between MAF And Throttle Body. **
· ** P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. **
· ** P0128 - Thermostat Rationality. In cold ambient temperatures. **
· ** P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter
Regeneration. **
· ** P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. **
· ** P040B - Exhaust Gas Recirculation Temperature Sensor “A” Circuit Performance.
**
· ** U3017 - Control Module Timer/Clock Performance. **
· ** U1421 - Implausible Ignition Key Off Time Received. **
· ** P0420 - Catalyst Efficiency Below Threshold. **
· ** P026B - Injection Timing Performance. **
· P04DB - Crankcase Ventilation System Disconnected.
· P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1.
· P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1.
· P2002 - Diesel Particulate Filter Efficiency Below Threshold.
· P0604 - Internal Control Module RAM.
· P1451 - Diesel Particulate Filter System Performance.
Other Updates Included:
· ** Fuel Filter Minder Calibration Changes **
· ** Cruise control system improvements. **
· ** Improvements in exhaust brake switch operation. **
· ** Charging system improvements for dual alternator applications. **
· ** Cold Idle Stability improvements. **
· ** Charge Air Cooler (CAC) leak detection software improvements. **
· ** Various wiTECH data and system test additions or improvements. **
· ** 68RFE Transmission shift quality improvements. **
· Doser Thaw Calibrations (with proper doser calibration). Ensure SB 18-032-13 (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.
· Grid Heater inhibit operation correction.
· Add engine run time to fuel filter minder.
· Dual alternator WiTECH improvements.
· Inducement timer reset procedure improvement.
· DEF refill detection calibration improvement.

 

[grabinov]

Just a couple...

I'm curious what these were:

** Improvements in exhaust brake switch operation. **
** 68RFE Transmission shift quality improvements. **

I have had no issues w shift quality, but I HAVE found the exhaust brake switch a little odd. Once in a while it seems like the light comes on but the brake does not. Wonder if this is related...

Thanks Sag.

 

[Bug Out]

grabnov, the 13's have a big change in shift quality but they tweeked the 14's so they were not as bad as 13's. I had a 12 that shifted fine, but in 13, they changed the shift pattern..

sag2, did you add in "68RFE Transmission shift quality improvements" to get me all riled up ??? LOL I'll have to rush over to my local dealer and have him check it..

Ed

 

[sag2]

No, it was in there.

 

[Bug Out]

I know. Just ribbing you. Been waiting for 14 months. Hopefully its what Ive wanted..

 

[Newt]

Hey Guys,

I know folks have been asking about flashes for various things. My 2014 just went in for its first service (Oil change at 5,000 cause I wanted it not cause I needed it) and they performed PCM flash 32370231AJ (TSB 18-053-14). My truck was working fine so this must just be a "standard" update. Does anyone know what it is? I bought the truck in July and that was the only flash. All other software must have been up to date, meaning it hasn't changed since July (or before).

This is on a 2500 Megacab / 68RFE Laramie.

BTW when I had the oil changed the "change oil now" meter still showed 67% oil life remaining. And that's after 4,100 miles of towing (a 13,000 pound 5th wheel) on a truck with only 5,100 miles on it.

The harder you work it, the longer before the oil change warning goes off. Just the opposite of the way it used to be.

Newt

 

[Bug Out]

Well once again, I go to Larry H Miller in Surprise, Az and talk to my service guy Steve. I give him the latest greatest PCM flash number. I call back two hours later, Steve says," Nope. No such number. We checked Chrysler etc". So once again I have to go back there looking like a Jack buttocks, with the service guys snickering at me and my useless numbers...

I think its time to find a new dealer to make a fool of myself with.. Or maybe when I get to Colorado springs, I'll catch some black ice and rid myself of the 68RFE ...LOL

Correction on what the tech said on the paperwork: 34853: veh up to date,the TSB's provided not for this veh and no PCM flashes available...

PCM flash 32370231AJ, TSB 18-053-14, Bulletin 14-005-13...

 

[Newsa]

The flashes depend on what options/equipment are installed on the truck. Mine has a manual transmission, so my truck would not need the automatic tramsmission updates.

 

[Bob4x4]

Well once again, I go to Larry H Miller in Surprise, Az and talk to my service guy Steve. I give him the latest greatest PCM flash number. I call back two hours later, Steve says," Nope. No such number. We checked Chrysler etc". So once again I have to go back there looking like a Jack buttocks, with the service guys snickering at me and my useless numbers...

I think its time to find a new dealer to make a fool of myself with.. Or maybe when I get to Colorado springs, I'll catch some black ice and rid myself of the 68RFE ...LOL

Correction on what the tech said on the paperwork: 34853: veh up to date,the TSB's provided not for this veh and no PCM flashes available...

PCM flash 32370231AJ, TSB 18-053-14, Bulletin 14-005-13...

Send me the last 8 of your vin,,,,,and if you have a flash sticker under the hood the software number on it

 

[smokemifugotem]

i took my '14 in with 800 miles on the odometer hoping the reflash i have been hearing about would help with the erratic shifting in the 68rfe and make the exhaust brake work when i need it to but i see no improvement. i can fry my brakes going down the mountain i go down every day and the only way i can get the e-brake to work is by giving it throttle to get the revs over 2000 and that only works some of the time. an on/off switch would be better. not like it came with but an on switch that actually slows the truck down every time you turn it on. at least the guy was nice enough to recalibrate the speedo for the 285/70/17 tires i put on it.

 

[Newsa]

My ebrake in my 6 speed manual works all the way down to 1000- 1100 rpm's

 

[My427stang]

Anyone have this flash done? Seem like the transmission and EB got better?

I am going in to have it done soon, but can't seem to get my schedule together, standard LOL

 

[Ram4Sam]

Anyone have this flash done? Seem like the transmission and EB got better?

I am going in to have it done soon, but can't seem to get my schedule together, standard LOL

Had this done last week, haven't noticed any changes in anything going down the road............

Sam

 

[grabinov]

It didn't make any difference in my case. I'm still confused about the operation of the brake.

I come off a ramp from a downhill freeway at 60+ mph in Tow/Haul and Manual Exhaust Brake mode. Using just touches on the brake pedal, the exhaust brake will engage through every gear all the way down to 2nd, and release at about 20mph in second gear. I use the brake pedal to come to a stop at the light. This is the kind of operation I would expect from the brake. I then let my foot off the brake and give just a touch on the throttle (it's still down hill) to turn right down a short, steep grade with a speed limit of 35mph. I don't speed here because there's a light at the bottom of the hill. Even if I manually hold the truck in second with the button, it will roll right through 20mph and keep accelerating with only the compression of the engine to help slow the truck, no Exhaust Brake at all.

I now have a CTS gauge installed and the VGT parameter (which seems to go to 100% when the exhaust brake is operating - I guess it reads percent-closed) stays up in the 40% range (40% closed) in this circumstance. In other words, it's still positioned to provide boost, not braking.

To my thinking, in the "Manual Exhaust Brake" mode, the vanes should stay 100% closed unless I step on the accelerator. Right?

I assume the "Auto Exhaust Brake" mode should vary the pitch of the blades between partially open and fully closed as necessary to hold the truck's speed constant, even downshifting to produce more braking force if the fully-closed vanes alone won't hold the requested speed. Right?

Maybe Bob4x4 or Sag2 can let me know if I am assessing the function of the VGT correctly...

 

[smokemifugotem]

Hey Guys,

I know folks have been asking about flashes for various things. My 2014 just went in for its first service (Oil change at 5,000 cause I wanted it not cause I needed it) and they performed PCM flash 32370231AJ (TSB 18-053-14). My truck was working fine so this must just be a "standard" update. Does anyone know what it is? I bought the truck in July and that was the only flash. All other software must have been up to date, meaning it hasn't changed since July (or before).

This is on a 2500 Megacab / 68RFE Laramie.

BTW when I had the oil changed the "change oil now" meter still showed 67% oil life remaining. And that's after 4,100 miles of towing (a 13,000 pound 5th wheel) on a truck with only 5,100 miles on it.

i had 2014 tradesman reflashed 3 weeks ago with 800 miles on the odometer in the hopes that it would make my 68rfe shift better and because the exhaust brake works how it wants to when it wants to. i saw no difference or improvement in either. when i'm going up hill and let off the accelerator it will upshift violently and i can feel and hear it in the drivetrain which can not be a good thing. also, when i accelerate enough for it to downshift it will then immediately upshift and slip slowly into the next gear which may just be the torque converter clutch locking up but whatever it is, it slips for a long time which would have to create a whole lot of friction and heat in the clutches. i like this truck but i don't like the transmission shifting or the way the exhaust brake works. i doubt they will make any improvements or changes unless it is an attempt to preserve the transmission and/or to save them some money on warranty claims. i don't really sense much goodwill after the sale is made.

 

[DonFitzwater]

Your clutches aren't slipping. It's called shift flare. Search it on here and you'll find that Transengineer has posted generous amounts of info that explains the way the shift strategy happens.

 

[smokemifugotem]

i read the shift flare postings and from what i could conclude, it is slip programmed into the computer to make for smoother shifts. but smooth shifting automatics are hard on clutches and that's why aftermarket companies make programmers to make shifts firmer and prolong transmission life. am i missing the point?

 

[My427stang]

i read the shift flare postings and from what i could conclude, it is slip programmed into the computer to make for smoother shifts. but smooth shifting automatics are hard on clutches and that's why aftermarket companies make programmers to make shifts firmer and prolong transmission life. am i missing the point?

You got it right. The least slip the better, and with more throttle should come even more pressure to keep things strong.

Hits the rest of the driveline harder, and grandma may not like it, but it's better for the hardest and most expensive thing to fix. That goes for torque converter clutches too.

Now a full boost hard shift could beat a converter a little bit, but the right way is a more durable converterr, not to castrate the valve body

 

[Bug Out]

I'm still waiting for a re-flash for my 2013 slip and slide, flare and flare 68 RFE........ Nothing like hearing a auto trans shift like a 15 year old learning how to drive a stick shift....How I miss my 2012 68 RFE shift pattern...