Question about 1994 Nissan Quest

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Electronic door locks self operate when ignition is off.

The grimlins are running wild. When the car is running the door locks are fine. When the car is parked and turned off, no key in ignition, the door locks lock and unlock on there own. I have to disconect the battery to stop this from happening. Is there a way to disable the electronic door locks and revert to manuel only?

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  • sy92592 Dec 13, 2008

    I have a 1994 Nissan Quest GXE, and have almost the same problem, maybe the same... Sometimes when I open the master door (the driver door), it locks itself on all doors including passenger, side-sliding, and the rear gate. I mean sometimes, not all the times. I have no idea why?

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Take out the fuse in the fuse box! owners manual will show you where

Posted on Dec 29, 2008

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2000 Ford mustang 3.8 cranks won't start diagnostic gives code b1353


B1353 Ignition Key-In Circuit Open GEM Go to Pinpoint Test B .
PINPOINT TEST B: THE KEY-IN-IGNITION CHIME DOES NOT OPERATE CORRECTLY
Do you know what the GEM - genaric electronic control is ?
You need a scan tool to check ignition switch position .Don't know if this would cause a no start . Have you check for ignition spark and fuel pressure ? Are there anyother problems with power door locks or windows or lighting ? Thing's the GEM controls ?
CONDITIONS DETAILS/RESULTS/ACTIONS B1 CHECK IGNITION STATES
NGS
Monitor the GEM PIDS IGN_KEY, IGN_A, IGN_S, and IGN_R while cycling the ignition switch through the OFF, ACC, RUN, START and key out positions.
  • Do the PID values agree with the ignition switch states?
Yes GO to B2 .

No GO to B4 . B2 CHECK GEM INTERNAL TONE OPERATION Trigger the GEM Active Command CHIME ON and OFF.
  • Does the chime operate correctly?
Yes GO to B3 .

No INSTALL a new GEM. For additional information, REFER to Section 419-10 . REPEAT the self test. CLEAR the DTCs. B3 CHECK GEM INPUT FROM DOOR AJAR CIRCUIT Monitor the GEM PID D_DR_SW, while opening and closing the driver door.
  • Do the GEM PID D_DR_SW values indicate CLOSED and AJAR correctly?
Yes INSTALL a new GEM. For additional information, REFER to Section 419-10 . REPEAT the self test. CLEAR the DTCs.

No GO to Pinpoint Test D . B4 CHECK GEM INPUT VOLTAGE FROM IGNITION SWITCH AT CJB FUSE 28 (15A)
CJB Fuse 28 (15A)
Measure the voltage between CJB Fuse 28 (15A), Pin 1, harness side and ground while cycling the ignition switch through all positions.
  • Is the voltage greater than 10 volts in the RUN and START positions only?
Yes GO to B5 .

No REPAIR the CJB. REPEAT the self test. CLEAR the DTCs. B5 CHECK GEM INPUT VOLTAGE FROM IGNITION SWITCH AT CJB FUSE 32 (15A)
CJB Fuse 32 (15A)
Measure the voltage between CJB Fuse 32 (15A), Pin 1, harness side and ground while cycling the ignition switch through all positions.
  • Is the voltage greater than 10 volts in the RUN and ACC positions only?
Yes GO to B6 .

No REPAIR the CJB. REPEAT the self test. CLEAR the DTCs. B6 CHECK GEM VOLTAGE INPUT CIRCUITS FOR OPEN - IGNITION SWITCH CIRCUIT 911 (WH/LG)
CJB Fuse 28 (15A)

GEM C352
Insert ignition key. Measure the resistance between GEM C352 Pin 8, Circuit 911 (WH/LG), harness side and CJB Fuse 28 (15A) Pin 2, Circuit 911 (WH/LG), harness side.
  • Is the resistance less than 5 ohms?
Yes GO to B7 .

No REPAIR Circuit 911 (WH/LG). REPEAT the self test. CLEAR the DTCs. B7 CHECK GEM VOLTAGE INPUT CIRCUITS FOR OPEN - IGNITION SWITCH CIRCUIT 1002 (BK/PK) Measure the resistance between GEM C352 Pin 22, Circuit 1002 (BK/PK), harness side and CJB Fuse 32 (15A), Pin 2, Circuit 1002 (BK/PK), harness side.
  • Is the resistance less than 5 ohms?
Yes GO to B8 .

No REPAIR Circuit 1002 (BK/PK). REPEAT the self test. CLEAR the DTCs. B8 CHECK GEM INPUT CIRCUIT FOR OPEN - KEY-IN-IGNITION SWITCH CIRCUIT 158 (BK/PK) Measure the resistance between GEM C352 Pin 9, Circuit 158 (BK/PK), harness side and ground.
  • Is the resistance less than 5 ohms?
Yes GO to B9 .

No REPAIR Circuit 158 (BK/PK) and key-in-ignition switch for failure. For additional information, REFER to Switch-Key-In-Ignition Warning . REPEAT the self test. CLEAR the DTCs. B9 CHECK GEM VOLTAGE INPUT CIRCUITS FOR SHORT TO POWER - IGNITION SWITCH CIRCUITS 911 (WH/LG), AND 1002 (BK/PK)
CJB Fuse 28 (15A)

CJB Fuse 32 (15A)

GEM C352
Remove ignition key. Measure the voltage between GEM C352 Pin 8, Circuit 911 (WH/LG), harness side and ground, and between GEM C352 Pin 22, Circuit 1002 (BK/PK), harness side and ground.
  • Are voltages greater than 10 volts?
Yes REPAIR the circuit in question. REPEAT the self test. CLEAR the DTCs.

No GO to B10 . B10 CHECK GEM INPUT CIRCUIT FOR SHORT TO GROUND -- KEY-IN-IGNITION SWITCH CIRCUIT 158 (BK/PK)
GEM C352
Remove ignition key. Measure the resistance between GEM C352 Pin 9, Circuit 158 (BK/PK), harness side and ground.
  • Is the resistance greater than 10,000 ohms?
Yes INSTALL a new GEM. For additional information, REFER to Section 419-10 . REPEAT the self test. CLEAR the DTCs.

No REPAIR Circuit 158 (BK/PK). REPEAT the self test. CLEAR the

Jan 03, 2017 | Ford Cars & Trucks

1 Answer

I have a 2007 Cadillac cts my key stuck my Windows stuck my flashers flashing and my car starts up so what's going on


Your key is stuck ? It won't move , it won't come out of the lock cylinder ? Can you shift it from park to drive , neutral etc... Are there any lights lit on the dash , yellow wrench light , service vehicle soon light ? any messages on Driver Information Center ? Your Cadillac has numerous electronic features controlled by modules - computers ! If your not familiar with electronics an these things I suggest you take it to someone who is . Does you Cadillac have console fool shifter ?
Electronic Park Lock (EPL)/Ignition Lock Cylinder Control Actuator: If the vehicle is equipped with automatic transmission and a floor mounted console gear shift, it has an ignition lock cylinder control actuator system in the steering column. The ignition lock cylinder control actuator purpose is to prevent the ignition key from being turned to the OFF position when the transmission is in any position other than PARK and the vehicle may still be moving. The column ignition lock system consists of an ignition lock cylinder control actuator, and a park position switch that is located in the automatic transmission shift lock control switch. The ignition lock cylinder control actuator contains a pin that is spring loaded to mechanically prevent the ignition key cylinder from being turned to the lock position when the vehicle transmission is not in the PARK position. If vehicle power is lost, and/or the transmission is not in the PARK position the operator will not be able to turn the ignition key to the lock position and will not be able to remove the ignition key from the column.
Linear Shift Assembly: If the vehicle is equipped with a column mounted gear shift, it has a linear shift assembly on the steering column. The linear shift assembly has a cable that runs from the linear shift assembly to the ignition lock cylinder case. The purpose of this cable is to prevent the ignition key from being turned to the OFF position when the transmission is in gear and the vehicle may still be moving. The linear shift assembly cable contains a pin that is spring loaded to mechanically prevent the ignition key cylinder from being turned to the lock position when the vehicle transmission is not in the PARK position. If vehicle power is lost, and/or the transmission is not in the PARK position the operator will not be able to turn the ignition key to the lock position and will not be able to remove the ignition key from the column.
The windows are no exception , they are controlled by modules in each door an are connected by a serial data communication bus !
The vehicle is equipped with power windows controlled by the door modules. Each passenger door window can be operated, either from a power window switch built into the driver door switch assembly (DDSA) , or, from a power window switch mounted locally on its associated door. The driver door window can be operated only from the driver door power window switch built into the DDSA.
When the driver door module (DDM) receives a driver door window switch request from the DDSA, the DDM examines the request and inspects to see if it has received any messages from any of the other vehicle modules prohibiting the movement. If no prohibitive messages have been received, the DDM then applies power and ground to the driver door window motor to move the window as requested.
When a passenger door module, passenger front door module (PDM), LH rear door module (LRDM), or RH rear door module (RRDM), receives a window switch request from, either the DDSA or the window switch mounted locally to its door, the passenger door module examines the request and inspects to see if it has received any messages from any of the other vehicle modules prohibiting the movement. If no prohibitive messages have been received, the passenger door module then applies power and ground to its associated window motor to move the window as requested.

Jun 30, 2015 | Cadillac Cars & Trucks

1 Answer

I have a 99 chevrolet blazer LS it was running fine the drivers side window rolled down but rolled back up extremely slow when i shut it off it wouldnt re-start the battery was dead so i jumped it and it...


that is one grimlin that is pretty well cornered your ignition switch is command central for all you listed that was not working properly inside the barrel of your ignition are the contact pins that supplies power to everything that requires power that why when you turn ignition off everything shut down so your battery does not die out .i would say that there is a 99% chance that your ignition is shot.

Apr 08, 2011 | 1999 Chevrolet Blazer

1 Answer

MY DOORS WILL LOCK AUTOMATICALLY WHILE THE KEY IS IN OR OUT OF THE IGNITION AND THE VEHICLE CAN BE RUNNING AT TIMES. OR IF I UNLOCK MY CAR USING THE KEY FOB, AND I DON'T OPEN THE DOOR RIGHT THEN, THEY...


This is a safety device that is designed to protect your car. My 2005 Frontier does the same thing. It is designed to auto lock a few minutes the vehicle is turned off. You can override this by locking and unlocking the doors after you have turned the key off, put it in the acc mode, or taken the keys out of the ignition.

Mar 29, 2011 | 2002 Nissan Altima

1 Answer

The doors lock automatically on my daughter's '99 Cougar. This has happened to me when I left the keys in the ignition and closed the driver's door. After AAA came and unlocked the doors, I removed the...


shorted wiring in doors or shorted door lock actuator in door. A grounding of a wire makes them lock normally. SO, any bare wire touching metal will ground it and lock the doors.

Principles of Operations
The Door Switch Lock Function When a door lock switch is moved into the lock position or a door lock cylinder is rotated to the lock position, the door lock switch grounds the lock circuit input to the central security module (CSM). The CSM then provides 12 volts to one side of the door lock actuators contained in the door latch unit and simultaneously grounds the other side of the door lock actuators. This completes the door lock actuator circuit, causing the door lock actuators to rotate a cam assembly, which then locks the doors. The 12 volts that the CSM provides to the door lock actuators are provided to both door lock actuators from a single pin on the CSM electrical connector.
The Door Switch Unlock Function When a door lock switch is moved into the unlock position, the door lock switch grounds the unlock circuit input to the CSM. The CSM then provides 12 volts to the opposite side (relative to locking the door) of the door lock actuator(s) contained in the door latch unit and simultaneously grounds the other side of the door lock actuator(s). This completes the door lock actuator circuit, causing the door lock actuator(s) to rotate a cam assembly in the opposite direction, which the unlocks the door(s). The 12 volts which the CSM provides to the door lock actuator(s) are provided to each door lock actuator from the individual pins on the CSM electrical connector.
--------------------------------------------------------
CSM Self-Test The CSM has a self-test which can be entered into by using a diagnostic tool. This self-test will monitor the following CSM door lock inputs:
  • Unlock switch (DTC B1311)
  • Lock switch (DTC B1300)
  • Exterior lock switch (DTC B1309)
  • Exterior unlock switch (DTC B1341)
Before running the self-test, the following conditions must be met:
  • The ignition switch must be in position II
  • The driver and passenger doors must be unlocked
  • The driver and passenger doors must be opened
  • The hood and liftgate must be closed
  • The set/reset switch, and liftgate release switch are not actuated
It is important to note that all of the diagnostic trouble codes (DTCs), with the exception of B1551 and B1553 can be retrieved with the self-test. DTCs B1551, and B1553 are continuous and will only be retrieved if the liftgate release is operated prior to retrieving the continuous DTCs.
Inspection and Verification
  1. NOTE: Make sure that the battery is fully charged before starting electrical diagnosis.
    NOTE: Prior to carrying out the CSM Self-Test, make sure that both the driver and passenger doors are open.
    Verify the customer concern.
  1. Visually inspect for obvious signs of mechanical and electrical damage.


Visual Inspection Chart Mechanical Electrical
  • Binding latch mechanisms
  • Binding linkage
  • Misaligned door
  • Central junction box (CJB) fuse(s)
  • Wiring harness
  • Electrical connector(s)
  • Door lock switch(es)
  • Door lock actuator(s)


Module Controlled Functions
The central security module (CSM) covers the following functions:
  • Central door locking
  • Double door locking
  • Anti - theft alarm incorporating
    • forced entry
    • radio theft
  • Radio frequency remote control of
    • central door locking
    • panic alarm
    • driver door unlock
    • liftgate unlock
For additional information, refer to Section 419-01A Anti - Theft - Active, Section 501-14A Handles, Locks, Latches and Mechanisms, and Section 501-14B Keyless Entry/Computer Operated Locks.

The CSM is in the passenger side kick panel I think.

Good luck

Jan 25, 2011 | 1999 Mercury Cougar

1 Answer

I have f150 kingranch 2005 ...i have two problems 1)the 4*4 will not engaged regardless of the rotary elect sw postion no sound under and no light...2)the ac when i switch it on the compressor will run but...


The 4WD issue
Operationally vacuum holds the IWE ( Integrated Wheel Ends ) out, and once vac is removed the spring engages the IWE.

Lift and support the front of the truck so the front wheels are off the ground ( take safety precautions, chock wheels, jack stands, etc )
Key on, engage 4x4 and try to turn the front drive shaft.
If it turns it is a problem with the transfer case.
If it doesn't it is a front axle engagement problem.

- If the front drive shaft does not turn :
Shut of the truck ( still jacked up, and supported ) remove the vac lines from the IWE. The spring should push the gears in, without the vac line on.
Check the vent line ( tube that is routed into the engine compartment with nothing attached to it ), for blockages.
If the vent line is clear, and with the vac lines off the IWE should be engaged ( both front wheels locked ).
If they lock, the problem is with the IWE solenoid not shutting off vacuum to the IWEs. There is a TSB on the 2004-2006 IWE solenoids, a newer revision has been made, and used from 2007 and newer MYs.

Here is a block diagram of the IWE system
sscullys_65.jpg

The fan issue, is this just with the AC or with the heat / vent also ?
The KR has the EATC ( Electronic Auto Temp Control ) HVAC system, so the blower motor speed is controlled by the Front blower motor speed control. This is mounted where the Blower motor resistor is located ( for the EMTC HVAC ) and could be the cause of the issue.

Try the EATC self test :
Electronic Automatic Temperature Control Module On-Demand Self-Test The EATC module on-demand self-test will retrieve on-demand (hard fault) DTCs only, it will not retrieve continuous DTCs. Continuous DTCs can be cleared when exiting the EATC module on-demand self-test. Make sure to retrieve continuous DTCs by carrying out the Electronic Automatic Temperature Control Module - Retrieve Continuous DTCs procedure before clearing any continuous DTCs.


•The EATC module on-demand self-test will not detect concerns associated with data link messages like engine coolant temperature or vehicle speed signals. A diagnostic tool must be used to retrieve these concerns.
•The EATC module on-demand self-test will detect concerns in the system control functions and will display on-demand (hard fault) DTCs for concerns that are present during the self-test. The vehicle interior temperature should be between 4°-38°C (40°-100°F) when performing the self-test. If the temperatures are not within the specified ranges, false DTCs may be displayed.
•The self-test can be initiated after cycling the ignition switch from OFF to ON. Normal operation of the climate control system stops when the self-test is activated.
•To enter the self-test, press the OFF and DEFROST buttons simultaneously and release, then press the AUTO button within 2 seconds . The display will show a flashing blower icon for 20 seconds , after which all vacuum fluorescent segments will be displayed if there are no on-demand DTCs present. If DTCs are present the EATC module will display "00 00" and then on-demand DTCs. Record all DTCs displayed.
•If any DTCs appear during the self-test, carry out the diagnostic procedure. Refer to the Electronic Automatic Temperature Control Module Diagnostic Trouble Code Index and follow the ACTION for each DTC given. See: Diagnostic Trouble Code Descriptions
•If a condition exists but no DTCs appear during the self-test, GO to Symptom Chart Condition: The EATC System Is Inoperative, Intermittent or Incorrect Operation. See: Symptom Related Diagnostic Procedures
•To exit the self-test and retain all DTCs, press any button except DEFROST. The EATC module will exit the self-test and retain all DTCs.
•To exit the self-test and clear all DTCs, press the DEFROST button. The EATC module will exit the self-test and all DTCs will be cleared.
•Always exit the self-test before powering the system down (system turned OFF). Once the self-test is exited, the ignition switch must remain ON for at least 30 seconds to allow the door actuators to automatically recalibrate.
•Continuous DTCs will be deleted after 80 ignition switch ON cycles after the intermittent fault occurs.

Electronic Automatic Temperature Control Module - Retrieve Continuous DTCs
The EATC module will retrieve only continuous (intermittent and hard) DTCs when carrying out this procedure.


•Retrieval of continuous DTCs can be initiated after cycling the ignition switch from OFF to ON. Normal operation of the climate control system stops when retrieving continuous DTCs.
•To retrieve continuous DTCs, press the OFF and DEFROST buttons simultaneously and release, then press the RECIRC button within 2 seconds . All vacuum fluorescent segments will be displayed if there are no continuous DTCs present. Continuous DTCs are indicated by the presence of the degrees Celsius symbol (°C) on the EATC module display. Record all DTCs displayed.
•If any DTCs appear, carry out the diagnostic procedure. Refer to the Electronic Automatic Temperature Control Module Diagnostic Trouble Code Index and follow the ACTION for each DTC given. See: Diagnostic Trouble Code Descriptions
•If a condition exists but no DTCs appear, GO to Symptom Chart Condition: The EATC System Is Inoperative, Intermittent or Incorrect Operation. See: Symptom Related Diagnostic Procedures
•To exit and retain all continuous DTCs, press any button except DEFROST. The EATC module will exit the retrieved continuous DTCs mode and retain all continuous DTCs.
•To exit and clear all continuous DTCs, press the DEFROST button. The EATC module will exit the retrieve continuous DTCs mode and all continuous DTCs will be cleared.
•Always exit the procedure before powering the system down (system turned OFF). Once the procedure is exited, the ignition switch must remain ON for at least 30 seconds to allow the door actuators to automatically recalibrate.
•Continuous DTCs will be deleted after 80 ignition switch ON cycles after the intermittent fault occurs.

Electronic Automatic Temperature Control (EATC) Module and Electronic Manual Temperature Control (EMTC) Module Cold Boot Process The purpose of the cold boot process is to allow the EATC or EMTC module to re-initialize and calibrate the door actuators. To carry out the cold boot process, follow the steps below.

1.Turn the ignition switch to the OFF position.
2.Disconnect the EATC or EMTC module electrical connectors.
3.Wait one minute .
4.Connect the EATC or EMTC module electrical connectors.
5.Turn the ignition switch to the ON position.
6.Select any position except OFF on the EATC or EMTC module. The EATC or EMTC module will now initialize and calibrate the mode doors. Calibration of the mode doors will take approximately 30 seconds .

Dec 26, 2010 | 2005 Ford F-150

1 Answer

How do i reprogram electronic door locks


Programming Electronic Door Lock Control System NOTE: The electronic door lock control processor (14B001) erases all previous keyless entry remote transmitter (15K601) from memory when the keyless entry remote transmitters are programmed or reprogrammed. The electronic door lock control processor can store up to four keyless entry remote transmitters in memory.


  • To program (or reprogram) keyless entry remote transmitter into the electronic door lock control processor, perform the following steps:
  1. Turn ignition switch to the RUN position and momentarily short the two terminals of the program connector taped to the wire assembly and located behind the glove compartment. All doors should lock and then unlock. Remove shorting pin.
  1. Press any button on keyless entry remote transmitter. All doors should lock and then unlock to verify the keyless entry remote transmitter has been programmed. If door locks do not respond, press button again (up to three times maximum with the same keyless entry remote transmitter).
  1. Repeat the above step to program additional keyless entry remote transmitters into the electronic door lock control processor (up to four keyless entry remote transmitters maximum).
  1. Turn ignition switch OFF. All doors should lock and then unlock.
  1. Check operation.

Jun 05, 2010 | 1997 Ford Windstar

1 Answer

I have electronic controls for the heater, A/C and


You can try removing the panel connectors, resetting it and running the calibration test.

Open the ashtray, and pull on each lower cover of the center trim panel. This is held on with spring clips, 3 on each side ( black circles in the picture below ). When you get to the top, be careful, the Passenger Side Airbag Deactivation lamp is on the center trim panel and has small wires ( green circle ).
The blue circles are the cam over connectors on the HVAC control panel, pivot the bail out, and the connector wil unplug itself. Reattach and run the self test calibrate ( if it will take it ) listed below the picture.
04683d9.jpg

Electronic Automatic Temperature Control Module On-Demand Self-Test The EATC module on-demand self-test will retrieve on-demand (hard fault) DTCs only, it will not retrieve continuous DTCs. Continuous DTCs can be cleared when exiting the EATC module on-demand self-test. Make sure to retrieve continuous DTCs by carrying out the Electronic Automatic Temperature Control Module - Retrieve Continuous DTCs procedure before clearing any continuous DTCs.

May 13, 2010 | 2006 Ford F-150

2 Answers

Where is the electronicnautomatic temperature control module located on a 05 ford 150


I assume you have checked all fuses. It could be the heater control switch , the blower motor resister , I would start testing if power is getting pass the switch to the blower motor.

Nov 28, 2009 | 2005 Ford F-150

1 Answer

Heater displays everything but you cannot turn anything on ac will not turn on neither will the heat the buttons will not even light up please help


From the equipment description, I take this to be a EATC ( Electronic Automatic Temperature Control ) system.

You can try to run the EATC diagnostic test & recalibrate ( once you have confirmed it is not a fuse )

Electronic Automatic Temperature Control Module On-Demand Self-Test The EATC module on-demand self-test will retrieve on-demand (hard fault) DTCs only, it will not retrieve continuous DTCs. Continuous DTCs can be cleared when exiting the EATC module on-demand self-test. Make sure to retrieve continuous DTCs by carrying out the Electronic Automatic Temperature Control Module - Retrieve Continuous DTCs procedure before clearing any continuous DTCs.


•The EATC module on-demand self-test will not detect concerns associated with data link messages like engine coolant temperature or vehicle speed signals. A diagnostic tool must be used to retrieve these concerns.
•The EATC module on-demand self-test will detect concerns in the system control functions and will display on-demand (hard fault) DTCs for concerns that are present during the self-test. The vehicle interior temperature should be between 4°-38°C (40°-100°F) when performing the self-test. If the temperatures are not within the specified ranges, false DTCs may be displayed.
•The self-test can be initiated after cycling the ignition switch from OFF to ON. Normal operation of the climate control system stops when the self-test is activated.
•To enter the self-test, press the OFF and DEFROST buttons simultaneously and release, then press the AUTO button within 2 seconds . The display will show a flashing blower icon for 20 seconds , after which all vacuum fluorescent segments will be displayed if there are no on-demand DTCs present. If DTCs are present the EATC module will display "00 00" and then on-demand DTCs. Record all DTCs displayed.
•If any DTCs appear during the self-test, carry out the diagnostic procedure. Refer to the Electronic Automatic Temperature Control Module Diagnostic Trouble Code Index and follow the ACTION for each DTC given. See: Diagnostic Trouble Code Descriptions
•If a condition exists but no DTCs appear during the self-test, GO to Symptom Chart Condition: The EATC System Is Inoperative, Intermittent or Incorrect Operation. See: Symptom Related Diagnostic Procedures
•To exit the self-test and retain all DTCs, press any button except DEFROST. The EATC module will exit the self-test and retain all DTCs.
•To exit the self-test and clear all DTCs, press the DEFROST button. The EATC module will exit the self-test and all DTCs will be cleared.
•Always exit the self-test before powering the system down (system turned OFF). Once the self-test is exited, the ignition switch must remain ON for at least 30 seconds to allow the door actuators to automatically recalibrate.
•Continuous DTCs will be deleted after 80 ignition switch ON cycles after the intermittent fault occurs.

Electronic Automatic Temperature Control Module - Retrieve Continuous DTCs
The EATC module will retrieve only continuous (intermittent and hard) DTCs when carrying out this procedure.


•Retrieval of continuous DTCs can be initiated after cycling the ignition switch from OFF to ON. Normal operation of the climate control system stops when retrieving continuous DTCs.
•To retrieve continuous DTCs, press the OFF and DEFROST buttons simultaneously and release, then press the RECIRC button within 2 seconds . All vacuum fluorescent segments will be displayed if there are no continuous DTCs present. Continuous DTCs are indicated by the presence of the degrees Celsius symbol (°C) on the EATC module display. Record all DTCs displayed.
•If any DTCs appear, carry out the diagnostic procedure. Refer to the Electronic Automatic Temperature Control Module Diagnostic Trouble Code Index and follow the ACTION for each DTC given. See: Diagnostic Trouble Code Descriptions
•If a condition exists but no DTCs appear, GO to Symptom Chart Condition: The EATC System Is Inoperative, Intermittent or Incorrect Operation. See: Symptom Related Diagnostic Procedures
•To exit and retain all continuous DTCs, press any button except DEFROST. The EATC module will exit the retrieved continuous DTCs mode and retain all continuous DTCs.
•To exit and clear all continuous DTCs, press the DEFROST button. The EATC module will exit the retrieve continuous DTCs mode and all continuous DTCs will be cleared.
•Always exit the procedure before powering the system down (system turned OFF). Once the procedure is exited, the ignition switch must remain ON for at least 30 seconds to allow the door actuators to automatically recalibrate.
•Continuous DTCs will be deleted after 80 ignition switch ON cycles after the intermittent fault occurs.

Electronic Automatic Temperature Control (EATC) Module and Electronic Manual Temperature Control (EMTC) Module Cold Boot Process The purpose of the cold boot process is to allow the EATC or EMTC module to re-initialize and calibrate the door actuators. To carry out the cold boot process, follow the steps below.

1.Turn the ignition switch to the OFF position.
2.Disconnect the EATC or EMTC module electrical connectors.
3.Wait one minute .
4.Connect the EATC or EMTC module electrical connectors.
5.Turn the ignition switch to the ON position.
6.Select any position except OFF on the EATC or EMTC module. The EATC or EMTC module will now initialize and calibrate the mode doors. Calibration of the mode doors will take approximately 30 seconds .

Nov 27, 2009 | 2005 Ford F-150

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