2009 Grand Caravan Cruise Control Issues
#1
11-06-2011, 11:20 PM
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2009 Grand Caravan Cruise Control Issues
HI all,
new to the forum here - I have a 2009 Grand Caravan SXT 4.0L with all the usual issues, especially the poor brakes.
My current issue is the cruise control won't hold speed. I cross-reference the following TSB: 18-028-10 and was wondering if somebody could help me out with access to this particular TSB?
Many thanks,
Byron
new to the forum here - I have a 2009 Grand Caravan SXT 4.0L with all the usual issues, especially the poor brakes.
My current issue is the cruise control won't hold speed. I cross-reference the following TSB: 18-028-10 and was wondering if somebody could help me out with access to this particular TSB?
Many thanks,
Byron
#2
11-07-2011, 05:21 PM
SUBJECT:
Flash: Speed Control Operation Improvements
OVERVIEW:
This bulletin involves flash reprogramming the Powertrain Control Module (PCM) with new
software.
software.
MODELS:
2009 - 2010 (JC) Journey
2007 - 2010 (JS) Avenger/Sebring/Serbring Convertible
2008 - 2010 (RT) Town & Country/Grand Voyager
2007 - 2010 (JS) Avenger/Sebring/Serbring Convertible
2008 - 2010 (RT) Town & Country/Grand Voyager
NOTE: This bulletin applies to RT vehicles equipped with a gas engine and a
6-speed automatic transmission (sales code DG2) built before September 15,
2010 (MDH 0915XX).
NOTE: This bulletin applies to JC vehicles equipped with a gas engine and a
6-speed automatic transmission (sales code DG2) built before September 28,
2010 (MDH 0928XX).
NOTE: This bulletin applies to JS vehicles equipped with a gas engine and a 6-speed
automatic transmission (sales code DG2) built before September 23, 2010
(MDH 0923XX).
6-speed automatic transmission (sales code DG2) built before September 15,
2010 (MDH 0915XX).
NOTE: This bulletin applies to JC vehicles equipped with a gas engine and a
6-speed automatic transmission (sales code DG2) built before September 28,
2010 (MDH 0928XX).
NOTE: This bulletin applies to JS vehicles equipped with a gas engine and a 6-speed
automatic transmission (sales code DG2) built before September 23, 2010
(MDH 0923XX).
NUMBER:
18-028-10
GROUP:
Vehicle Performance
DATE:
October 20, 2010
SYMPTOM/CONDITION:
The speed control operation has changed to correct the following conditions:
i.
Adjust the set speed control to react when the speed drops to 2-3 MPH below the
target.
target.
ii.
A RPM increase while going downhill due to a transmission downshift.
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all engine systems are functioning as designed. If DTC's are
present record them on the repair order and repair as necessary before proceeding further
with this bulletin.
If the vehicle operator describes or experiences the Symptom/Condition, perform the
Repair Procedure.
TechCONNECT, verify all engine systems are functioning as designed. If DTC's are
present record them on the repair order and repair as necessary before proceeding further
with this bulletin.
If the vehicle operator describes or experiences the Symptom/Condition, perform the
Repair Procedure.
PARTS REQUIRED:
Qty. Part No. Description
1 04275086AB Label, Authorized Modification
1 04275086AB Label, Authorized Modification
REPAIR PROCEDURE:
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
1. Reprogram the PCM with the latest software. Follow the detailed service procedures
available in DealerCONNECT/TechCONNECT, Refer To Group 8 - Electrical >
Electronic Control Modules - Service Information > Module - Powertrain Control >
Standard Procedures > PCM/ECM Programming - Gas.
available in DealerCONNECT/TechCONNECT, Refer To Group 8 - Electrical >
Electronic Control Modules - Service Information > Module - Powertrain Control >
Standard Procedures > PCM/ECM Programming - Gas.
After PCM reprogramming,
the following must be performed:
the following must be performed:
a. Clear any DTC's that may have been set in other modules due to reprogramming.
The wiTECH application will automatically present all DTCs after the flash and allow
the tech to clear them.
b. On 62TE equipped vehicles clear the Variable Line Pressure (VLP) Counters, found
in the Misc Function menu for the PCM ECU.
c. Perform the Quick Learn function, found in the Misc Function menu for the TCM
ECU.
2. Type the necessary information on the “Authorized Modification Label” and attach it
near the VECI label.The wiTECH application will automatically present all DTCs after the flash and allow
the tech to clear them.
b. On 62TE equipped vehicles clear the Variable Line Pressure (VLP) Counters, found
in the Misc Function menu for the PCM ECU.
c. Perform the Quick Learn function, found in the Misc Function menu for the TCM
ECU.
2. Type the necessary information on the “Authorized Modification Label” and attach it
#3
11-08-2011, 11:18 PM
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Thanks Tizzy1,
do you know if this flash ENABLES or DISABLES a downshift when going downhill under cruise control? My van will increase speed by almost 20 mph over the set speed on a downhill which is no good for avoiding tickets on country roads. Dealer has given a "no trouble found" the last 2 times I had it looked at for other items.
Byron
do you know if this flash ENABLES or DISABLES a downshift when going downhill under cruise control? My van will increase speed by almost 20 mph over the set speed on a downhill which is no good for avoiding tickets on country roads. Dealer has given a "no trouble found" the last 2 times I had it looked at for other items.
Byron
#5
09-16-2012, 09:10 PM
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Location: Coventry CT
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