DCCV question
- Thread starter lsboosted
- Start date
FASTLLS
Dedicated LVC Member
Just looking at estimates, maybe 4 hours?
Either way, I would buy the part and take it to an independent shop that you trust. Or do it yourself if you can.
Online, it says roughly 500-700. I can't get on shopkey with this computer to give you a definite answer on the time and price though.
Either way, I would buy the part and take it to an independent shop that you trust. Or do it yourself if you can.
Online, it says roughly 500-700. I can't get on shopkey with this computer to give you a definite answer on the time and price though.
FASTLLS
Dedicated LVC Member
No problem.. I looked on shopkey and they don't give you an estimated time for that unless it's under a different name..
FASTLLS
Dedicated LVC Member
If it's cold on one side and hot on the other, then most likely its the DCCV.. What is the problem that you have..
toomanyfumes
Well-Known LVC Member
I'm having a problem with mine, too. No matter how the climate control is set, I get only hot air from all vents. I can direct heat to the different vents, floor, defrost etc. A friend has a code reader, will a bad DCCV throw a code?
FASTLLS
Dedicated LVC Member
May be, maybe not.. Depends if it's the electrical inside the DCCV. Is that with the a/c on or off? Because with the a/c on, it might just need to be recharged.
no i recharged mine and when i set it on its coldest setting i have a laser temp sensor and the lowest reading im getting is 70 degrees. and yes the passenger side blows a bit cooler than the drivers side.
toomanyfumes
Well-Known LVC Member
Mine is hot all the time. Temp set at 60 which is usually just outside air and I get hot air. A/C worked great, now just the hot.
The code readers are OBDII..they only read engine related codes, not any codes related to electrical type devices or AC, etc. The dealership has very expensive equipment that can read out codes (if any) for that stuff
joegr
Dedicated LVC Member
OBDII readers with Ford specific option can read the AC codes. However, there's no reason to bother with that. The DATC display will read out all climate control related codes to you. You can get it to display the stored codes and the currently failing codes. You can also get it to erase stored codes to see if they come back. Below is the gen II button sequences to do this. The gen I is similar.
Note that DCCV failures do not always trigger a fault code.
Also note that full heat on both sides is one of the DCCV failure modes.
Front Panel DATC Module Self-Test (On-Demand Diagnostic Trouble Codes — DTCs)
On-demand DTCs are those that are reported by an ECU when a failure is detected while executing a diagnostic test. For the DATC module this means that all faults (hard) that occur while the module is conducting a self-test shall be reported as an on-demand DTC.
* The DATC module self-test will not detect concerns associated with data link messages such as engine coolant temperature or vehicle speed signals. The diagnostic tool must be used to retrieve these concerns.
* The vehicle interior temperature should be between 0-32°C (32-90°F) when carrying out the self-test. If the temperatures are not within the specified ranges, false temperature sensor DTCs may be displayed.
The DATC module self-test through the front panel display:
* can be initiated at any time. Normal operation of the system stops when the self-test is activated.
* is entered by pressing the OFF and DEFROST buttons simultaneously and then pressing the AUTO button within 2 seconds. Record all DTCs displayed.
* concludes by reporting all on-demand DTCs. Follow the diagnostics procedure given under ACTION in the DTC index for each DTC given.
* reports individual on-demand DTCs as 4-digit DTCs (less the alpha character).
* will calibrate all the mode doors and check all analog inputs. The DATC module will only report on-demand (hard) faults that occurred while the DATC module was conducting its self-test.
* will light all control panel display segments if no faults are detected.
* will report individual on-demand DTCs without the °C symbol lit.
To exit the self-test, press the DEFROST button. This will clear all on-demand codes from the DATC module memory. If no button is pushed, DTCs will continue to be displayed.
Upon exit from the self-test the DATC module returns to operational status. The DATC module executes a hard (cold boot) reset which places the DATC system in the OFF mode.
If a condition exists but no DTCs appear during the self-test, GO to Symptom Chart Condition: The DATC System Is Inoperative, Intermittent or Incorrect Operation.
Always exit the self-test before powering the system down (system turned OFF).
Front Panel DATC Module Display — Retrieve Continuous Diagnostic Trouble Codes (DTCs)
Continuous DTCs are fault codes recorded by the DATC module which have occurred during normal operation. For the DATC module this means that all faults (intermittent or hard) that occur while the module is in an operational state shall be reported as a continuous DTC.
* To retrieve continuous DTCs, press the OFF and DEFROST buttons simultaneously, followed by pressing the RECIRC button within 2 seconds.
* The DATC module will report all continuous DTCs to the vacuum fluorescent (VF) display.
* The DATC module will not carry out a self-test; it will only display continuous faults codes which are stored in memory.
* All VF display segments will light if no faults are detected.
* Individual continuous DTCs will be reported with the °C symbol lit.
* DTCs shall be reported as a 4-digit DTC (less the alpha character).
* Pressing the front DEFROST button will exit the retrieve continuous DTCs mode and clear all continuous DTCs from DATC module memory.
* Pressing any other button (other than DEFROST) will exit the retrieve continuous DTCs mode and maintain all continuous DTCs in DATC module memory.
* Upon exit from the retrieve continuous DTCs mode the DATC module returns to operational status. The DATC module executes a hard (cold boot) reset which places the DATC system in the OFF mode.
Diagnostic Trouble Code Index
Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Index DTC Description Action
P1460 WOT A/C Cutout Internal Driver Malfunction REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
P1461 A/C Pressure Sensor Circuit High Input REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
P1462 A/C Pressure Sensor Circuit Low Input REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
P1463 A/C Pressure Sensor Insufficient Pressure Variation REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
P1469 Low A/C Cycling Period REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
P1474 Low Speed Fan Internal Driver Failure REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
P1479 High Speed Fan Internal Driver Failure REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
P1464 A/C Demand Out Of Self-Test Range REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
Dual Electronic Automatic Temperature Control (DATC) Module Diagnostic Trouble Code (DTC) Index DTC Run-Time (Intermittent) Faults or Self-Test (Hard) Faults Description Action to Take
B1242 1242 Air Inlet Door Actuator Circuit Failure Go To Pinpoint Test C .
B1251 1251 In-Vehicle Temperature Sensor Circuit Open Go To Pinpoint Test D .
B1253 1253 In-Vehicle Temperature Sensor Circuit Short to Ground Go To Pinpoint Test D .
B1255 1255 Ambient Air Temperature Sensor Open Go To Pinpoint Test F .
B1257 1257 Ambient Air Temperature Sensor Short to Ground Go To Pinpoint Test F .
B1259 1259 A/C Solar Radiation Sensor Open Circuit Go To Pinpoint Test G .
B1261 1261 A/C Solar Radiation Sensor Circuit Short to Ground Go To Pinpoint Test G .
B1262 1262 Defrost Door Actuator Circuit Failure Go To Pinpoint Test C .
B1263 1263 Panel Door Actuator Circuit Failure Go To Pinpoint Test C .
B1264 1264 Floor Door Actuator Circuit Failure Go To Pinpoint Test C .
B1265 1265 Cold Air Bypass Door Actuator Circuit Failure Invalid code. Vehicle not equipped with cold air bypass door actuator. Ignore this code and continue diagnostics.
B1342 1342 ECU Defective INSTALL a new DATC module.
B1676 1676 Battery Voltage Out of Range —
B1946 1946 Evaporator Discharge Temperature Sensor Open Circuit Go To Pinpoint Test E .
B1947 1947 Evaporator Discharge Temperature Sensor Circuit Short to Ground Go To Pinpoint Test E .
B1966 1966 Driver Heater Core Discharge Temperature Sensor Open Circuit Go To Pinpoint Test E .
B1967 1967 Driver Heater Core Discharge Temperature Sensor Short Circuit Go To Pinpoint Test E .
B2428 2428 Passenger Heater Core Discharge Temperature Sensor Open Circuit Go To Pinpoint Test E .
B2429 2429 Passenger Heater Core Discharge Temperature Sensor Short Circuit Go To Pinpoint Test E .
B2477 2477 Module Configuration Failure RECONFIGURE the DATC module.
B2797 2797 Driver Coolant Control Valve Open Circuit Go To Pinpoint Test J .
B2798 2798 Driver Coolant Control Valve Circuit Short to Ground Go To Pinpoint Test H .
B2799 2799 Passenger Coolant Control Valve Open Circuit Go To Pinpoint Test J .
B2800 2800 Passenger Coolant Control Valve Circuit Short to Ground Go To Pinpoint Test H .
U1041 5041 SCP Invalid Or Missing Data For Function Read Vehicle Speed REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
U1073 5073 SCP Invalid or Missing Data For Engine Coolant REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
U1027 5027 SCP Invalid or Missing Data For Engine Rpm REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
U1178 5178 SCP Invalid or Missing Data For Voice Command This code will only appear if the vehicle is equipped with voice command.
U1222 5222 SCP Invalid or Missing Data For Interior Lamps —
FASTLLS
Dedicated LVC Member
I was waiting for you to put your input. I really don't know much about the heating/ a/c systems.. 
toomanyfumes
Well-Known LVC Member
Did the self check and looks like definitely the DCCV. Codes 2797 & 2799.
Thanks for the help joegr.
Thanks for the help joegr.
toomanyfumes
Well-Known LVC Member
Got the DCCV installed today. My mechanic charged me $95 for labor and coolant but he always gives me a good price. Got the part from Five Star.
Thing is, after he installed it the climate control still didn't work. He checked fuses and replaced a 10 amp under the hood now it works fine. He said maybe the faulty DCCV blew the fuse but I guess I'll never know if I had to replace it or not.
Anyway, I have my vents and A/C back so all is well.
joegr
Dedicated LVC Member
It's not uncommon for a failing DCCV to blow the fuse. You needed the DCCV. If you keep an LS long enough, you will (at the least) have to replace all the COPs and the DCCV.
And the degas bottle, and the ...
hahaha very true...
Its funny to read the jaguar forums about the S type... as you would expect, all the same problems.
I managed to squeak by last winter, but I'm pretty sure my DCCV and/or my aux pump is on its way out... no heat at idle
You'll know more than you want to soon enough.I was waiting for you to put your input. I really don't know much about the heating/ a/c systems..
Its funny to read the jaguar forums about the S type... as you would expect, all the same problems.
I managed to squeak by last winter, but I'm pretty sure my DCCV and/or my aux pump is on its way out... no heat at idle
FASTLLS
Dedicated LVC Member
I am very good at diagnosing problems but not so good at fixing them.. That's why I could never be a mechanic. I love fixing my own vehicles though..
FASTLLS
Dedicated LVC Member
Yess.. I have no clue what I'm going to do now.. I took automotive in high school and now I'm done so I'm out of a hoist now.. I occasionally work at an auto shop so maybe he'll let me do stuff on his hoist..
1LoudLS
Dedicated LVC Member
fuses never blow for no reason, something was wrong and thats what blew the fuse.
toomanyfumes
Well-Known LVC Member
I still like working on cars, I just don't want to crawl under them. So far, three COPS, the DCCV and one window regulator that the dealer I bought it from fixed. Not too bad for having it almost two years.
my05lincls8
Active LVC Member
Ok, I know I'm hella slow, but what the hell are COPS? Please not another friggin potential issue! It looks like after reading all these posts, that my DCCV is bad and needs to be replaced! The dealer told me $1000 because I said I believed it to be the blend door actuator! WTH??
TomServo92
Active LVC Member
Coil On Plug I believe.
Sounds like I am in need of a new DCCV as well. Only hot air blows from all vents and the AC Clutch fuse keeps blowing.
Hopefully its not something else more serious.