Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

2016 Jeep - Cherokee Limited - 2.4L, ln-Line4 (144C1) VIN(

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7 years 4 months ago - 7 years 4 months ago #25827 by ptrans
DIAGNOSE CUSTOMER COMPLAINT 948TE
TRANSAXLE PROBLEM.TEST DROVE TO
VERIFY COMPLAINT. CHECKED SYSTEM
FOR CODES. PO887 SET. HAD DODGE
DEALER
REFLASH TRANSAXLE CONTROL MODULE
WITH THE LATEST SOFTWARE. THE NEW
SOFTWARE DISABLES 9TH GEAR.
The re-flash should of been done before the vehicle was rented.
THE COMPLAINT THE CUSTOMER HAD WITH THIS VEHICLE
WAS WHEN THE TRANSMISSION MADE A GEAR CHANGE TO
9TH GEAR THE TCM PUT THE TRANS IN LIMP MODE. LIMP
MODE WAS THE LAST KNOWN WORKING GEAR 8TH GEAR.
BUT THE PROBLEM WAS WHEN THE VEHICLE CAME TO A
STOP WOULD TRY TO TAKE OFF IN 8TH GEAR. TURNING
THE IGNITION ON AND OFF A FEW TIMES WOULD RESTORE
lST GEAR. INTERESTING THING ABOUT THIS ISSUE IF YOU
DROVE THE VEHICLE IN MANUAL SHIFT MODE 8TH GEAR
YOU COULD DRIVE THE VEHICLE WITH NO
PROBLEMS AS LONG AS YOU DID NOT ALLOW 9TH GEAR.
ANOTHER INTERESTING THING WAS AFTER THE REFLASH
TO DISABLE 9TH GEAR THE TCC WOULD LOCKUP AT A
LOWER SPEED TRYING TO GET BACK SOME OF THE C A F E
AND EMISSION NUMBERS THAT WAS LOST FROM THE
HIGHER RPM AT CRUISE. (INTERESTING)
THE RENTAL COMPANY ENTERPRISE WAS NO HELP. THEY
HAD NO SOLUTION FOR THE CUSTOMER TO MAKE HER
FLIGHT IN SEATTLE WA. ENTERPRISE DIDN'T EVEN WANT ME
TO TEST DRIVE THE VEHICLE. I DROVE THE VEHICLE AND
ADVISED THE CUSTOMER WHAT I WOULD DO. She said please do and she made her flight.

Paul's Transmission & Repair

Paul Townsend
Last edit: 7 years 4 months ago by ptrans. Reason: TYPO
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7 years 4 months ago #25839 by Desmond6004
What is "gTH" gear please?

Getting involved in discussions because I have a lot to learn still.
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7 years 4 months ago #25875 by ptrans
TYPO 9TH GEAR

Paul Townsend
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7 years 4 months ago #25889 by ptrans
Don't we all. HAPPY NEW YEAR

Paul Townsend
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