ARTICLE BEGINNING * PLEASE READ THIS FIRST * DESCRIPTION OPERATION ATC COMPUTER BLEND-AIR DOOR ACTUATOR CONTROL PANEL

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1 A/C-HEATER SYSTEM - AUTOMATIC Article Text 1989 Chrysler LeBaron Sedan For m m m m m Copyright 1998 Mitchell Repair Information Company, LLC Thursday, July 03, :15AM ARTICLE BEGINNING 1989 AUTOMATIC A/C-HEATER SYSTEMS Chrysler Motors - Automatic Temperature Control (ATC) Chrysler; LeBaron, New Yorker, New Yorker Landau Dodge; Dynasty * PLEASE READ THIS FIRST * CAUTION: When discharging air conditioning system, use only approved refrigerant recovery/recycling equipment. Make every attempt to avoid discharging refrigerant into the atmosphere. DESCRIPTION The Automatic Temperature Control (ATC) system automatically controls vehicle interior temperature according to temperature setting. The system regulates airflow direction, blower speed, fresh air or recirculated air, and the amount of cool or warm air allowed into system to achieve desired temperature. The system consists of an ATC computer, blower motor, control panel, Power/Vacuum Module (PVM), in-car temperature sensor, and ambient temperature sensor. OPERATION ATC COMPUTER The Automatic Temperature Control (ATC) computer is part of the control panel. It manages all automatic temperature control electrical conponents. The automatic temperature control computer provides power to the Power/Vacuum Module (PVM) and the blend-air door actuator according to desired temperature setting and airflow direction. BLEND-AIR DOOR ACTUATOR Blend-air door actuator is an electric servomotor located on bottom of A/C-heater housing. The ATC computer activates the blend-air door actuator to open or close to proper position according to temperature setting. CONTROL PANEL Control panel allows operator to control various functions of the automatic temperature computer control by pushing buttons to change system modes. Blower speed, temperature selected, airflow direction, and A/C mode is displayed on control panel. To change temperature display from Fahrenheit reading to Celsius or back, depress "AUTO" and defrost buttons at the same time. See Fig. 1. Blower Speed Selector Switch Blower speed selector button is a rocker type switch. If

2 switch is pressed on top, blower speed increases. If switch is pressed on bottom, blower speed decreases. Control panel will display segments has blower speed is increased. "A/C" Button When button is pushed, A/C compressor is turned on. A snowflake is displayed on control panel when in this mode. "OFF" Button Depressing button shuts the A/C-heater system off. The in-car sensor and fan motor remain on. Fig. 1: Automatic Temperature Control Panel Courtesy of Chrysler Motors. "PANEL" Button When button is depressed, air is routed to instrument panel registers. Control panel will display panel symbol (bi-level symbol without arrow pointing downward). See Fig. 1. "AUTO" Button With "AUTO" button depressed, air discharge and blower speed are controlled automatically. Automatic temperature control range is from 65 F (18 C) to 85 F (29 C). "FLOOR" Button When button is depressed, airflow is routed to floor outlets. Control panel will display floor symbol (bi-level symbol without side arrows). See Fig. 1. Pressing "PANEL" and "FLOOR" buttons simultaneously will place system in bi-level mode. Air is discharged through panel and floor outlets in bi-level mode. Control panel will display bi-level symbol. Defrost Button When button is depressed, airflow is routed to defroster vents. Some airflow is routed to floor outlets. The A/C compressor will operate when in this mode. Control panel will display defrost A/C-HEATER SYSTEM - AU

3 symbol. See Fig. 1. Air Temperature Selector Switch Depressing upper or lower end of air temperature selector switch will raise or lower temperature setting. The range of comfort settings are 65 F (18 C) to 85 F (29 C). At "65" and "85" the air temperature doors lock in minimum or maximum heat positions repectively. With air temperature and "AUTO" mode selected, control of A/C-heater system is automatic. When vehicle is started, the system adjusts to rapidly bring interior temperature to desired setting. POWER/VACUUM MODULE (PVM) The Power/Vacuum Module (PVM) is located in A/C-heater housing. See Fig. 2. The PVM receives control signals from ATC computer. The PVM, in turn, supplies vacuum to water valve, outside air, recirculated air, and airflow direction actuators. The PVM also supplies voltage to compressor clutch and varies voltage to blower motor. Fig. 2: ATC System Component Locations Courtesy of Chrysler Motors. AMBIENT TEMPERATURE SENSOR The ambient temperature sensor is located on A/C-heater housing. See Figs. 2 and 3. The ambient temperature sensor provides the ATC computer information to regulate low blower speed, cold engine lock-out time, temperature offsets, and mode control. IN-CAR TEMPERATURE SENSOR The in-car temperature sensor is part of the motorized aspirator assembly that is mounted on instrument panel. See Figs. 2 and 3. A small fan draws air from passenger compartment across sensor. The in-car sensor then signals the ATC computer which adjusts system to maintain a constant passenger compartment temperature. A/C-HEATER SYSTEM - A

4 Fig. 3: Ambient Temperature & In-Car Temperature Sensors Courtesy of Chrysler Motors. TESTING ENTERING SELF-TEST & DIAGNOSTIC MODE Pre-Test Preparation 1) Determine if customer complaint is due to system failure or improper operation of A/C-heater system. System may go into maximum heating or cooling mode if driver rapidly changes temperature setting by four or more digits. 2) Check coolant level, refrigerant charge, compressor drive belt tension, vacuum hose connections, radiator airflow, radiator fan operation, and in car-temperature sensor air suction before entering self-test and diagnostic mode. 3) Bring engine to normal operating temperature and enter self-test and diagnostic mode. Always test the entire system after repairs have been performed (if necessary). Entering Self-Test & Diagnostic Mode A self-test and diagnostic mode has been programmed into the ATC computer. By depressing "AUTO", "FLOOR" and defrost buttons at the same time, the computer will flash a failure code on control panel temperature display. See Figs. 1 and 4. The system will flash "75" on the control panel if system is okay. A full no failure test will take approximately 1 1/2 minutes. After each failure code is recorded (if any), depress the "PANEL" button to resume test cycle. At end of test cycle, the display will return to the selected temperature setting. A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 4)1989 Chrysler LeBaron SedanFor m m m m mcopyrigh

5 Fig. 4: Automatic Temperature Control Diagnostic Flow Chart Courtesy of Chrysler Motors. NON-COMPUTER AIDED DIAGNOSTICS A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 5)1989 Chrysler LeBaron SedanFor m m m m mcopyrigh Computer Display Does Not Dim With Headlights On 1) If computer display does not dim, but other instruments do, remove automatic temperature control panel and leave wiring harness connected. Check for 4.5 volts between pin No. 10 of 21-pin connector and body ground. See Fig. 5. 2) Turn instrument illumination dimmer in headlight switch. Voltage should vary from 2 to 12 volts at pins No. 10 and 21 of 21-pin connector. If voltage is okay, and other electronic displays are normal, replace ATC computer. If voltage is not okay, repair wiring.

6 Fig. 5: Electronic Automatic Temperature Control Connectors A/C-HEATER Courtesy of Chrysler SYSTEM Motors. - AUTOMATICArticle Text (p. 6)1989 Chrysler LeBaron SedanFor m m m m mcopyrigh Computer Does Not Return To Set Temperature After Vehicle Is Shut Off And Restarted, Computer Repeatedly Displays A Test

7 Complete Display Replace automatic temperature control panel. See AUTOMATIC TEMPERATURE CONTROL PANEL removal and installation in this article. Push Buttons Stick, Do Not Function Properly, Or Panel Display Figures Are Partly Illuminated Perform a functional/visual inspection to confirm complaint. If malfuction exists, replace automatic temperature control panel. See AUTOMATIC TEMPERATURE CONTROL PANEL removal and installation in this article. Insufficient Cooling Or Heating With No Failure Code 1) Check blend-air door shaft-to-actuator engagement. If necessary, remove actuator and install properly. With system running, place a small piece of paper over in-car temperature sensor intake. If paper sticks to grille, in-car temperature sensor aspirator is okay. 2) If paper does not stick, but aspirator motor is running, repair in-car temperature sensor foam gasket. If paper does not stick, and aspirator motor is not running, check for battery voltage between the 2 center terminals of in-car temperature sensor connector. If voltage is present, replace in-car temperature sensor. Blower Motor Operates At High Speed Only And Cannot Be Controlled With Blower Speed Selector Switch, No Failure Code Displayed Select a one-bar indicated blower setting. Disconnect the 2- pin connector from power/vacuum module. If blower stays on high speed, the Black/Tan wire is shorted. Locate and repair short. If blower stops, replace power/vacuum module. PRE-COMPUTER AIDED DIAGNOSTICS Display Symbols And Indicators Do Not Illuminate, No Failure Code Displayed 1) After self-test is completed, select a mode that will display malfunction. If automatic temperature control system operates properly and the display does not, perform a visual inspection to confirm complaint. 2) If malfunction exists, replace automatic temperature control panel. See AUTOMATIC TEMPERATURE CONTROL PANEL removal and installation in this article. Inoperative Blower Motor, No Failure Code Displayed 1) Check all PVM and blower motor wiring connections. Use a test light to check for 12 volts on both ends of fuse No. 4. Replace if necessary. If fuse is good, disconnect blower motor wiring harness. 2) Using a voltmeter, check for 12 volts between Green wire on wiring harness and body ground. If there is no voltage, repair wiring. If there is 12 volts, connect negative lead of voltmeter to Black wire on wiring harness. 3) Using blower speed selector switch, raise and lower blower speed indicator on display and observe voltmeter. Reading should be 3 volts when in low speed and 12 volts when in high speed. 4) If there is no voltage change, replace PVM and retest system. If there is a voltage change and blower is still operative, replace blower motor. NOTE: Do not run ATC system for more than 10 minutes with PVM A/C-HEATER SYSTEM -

8 removed from A/C unit. Stay clear of blower motor and PVM heat sink. No Airflow To Panel Outlets, No Failure Code Displayed 1) With engine running, unplug vacuum connector from PVM. Using a vacuum gauge, check Black line of vacuum harness for engine manifold vacuum. Shut engine off. Vacuum should be held by check valve for 2 minutes. 2) If vacuum is not present or does hold for 2 minutes, repair vacuum hose or replace check valve located over A/C-heater housing. If vacuum is present and held for 2 minutes, replace Power/Vacuum Module (PVM) and retest system. Outlet Air Temperature Does Not Become Hot Then Cycle Too Cold During Self-Test, No Failure Code Displayed See PRE-TEST PREPARATION and refer to INSUFICIENT COOLING OR HEATING WITH NO FAILURE CODE in NON-COMPUTER AIDED DIAGNOSTICS portion of this article. COMPUTER AIDED DIAGNOSTICS Preliminary Test Steps & Failure Code Information 1) See NON-COMPUTER AIDED DIAGNOSTICS before computer aided diagnostic tests. Hood of vehicle should be closed during diagnostic tests to keep engine heat from affecting ambient temperature sensor. 2) Failure Codes No. 1, 2, 3, 11 and 12 involve wiring harness, blend-air door actuator, and ATC computer. Failure Code No. 4 involves ATC computer, PVM, and A/C logic circuit. Failure Code No. 5 involves wiring harness, A/C switches, ATC computer, and engine controller. 3) Failure Codes No. 6, 7, 8, 9, 10 and 11 involve wiring harness, PVM, and ATC computer. Failure Code No. 15 involve in-car temperature sensor, wiring harness, and ATC computer. Failure Codes No. 16, 17 and 18 involve ATC computer. 4) Multiple failure Codes No. 2 or 3, 6, 7, 8, 9, 10, 11, 12 and/or 13 indicate that a connector is unplugged or that the ignition feed is open to blend-air door actuator or PVM. 5) All voltage tests should be performed with ignition switch in the "RUN" position and voltmeter connected to a known good body ground. Failure Codes Involving PVM 1) If multiple failure codes involve PVM, check wiring harness and connections at Power/Vacuum Module (PVM). If okay, go to next step. If not, correct problem and retest system. 2) Connect voltmeter between pin No. 7 of PVM and body ground. See Fig. 5. If battery voltage is indicated, replace PVM. If not, connect voltmeter to pin No. 12 of ATC computer. 3) If battery voltage is not found, replace ATC computer. If battery voltage is indicated, repair wiring between pin No. 12 of ATC computer and pin No. 7 of PVM. Failure Codes No. 1, 2 Or 3 Test 1) If failure Codes No. 12 or 13 occur with any of these codes, repair Codes No. 12 or 13 first, and then retest system. With failure Codes No. 1 or 2, remove blend-air door actuator. With wiring harness still connected to actuator, retest system. 2) If failure code goes away, check for blend-air door A/C-HEATER SYSTEM - AUT

9 binding inside A/C-heater housing. If failure (code) is still present or Code No. 3 is present, disconnect and check continuity between actuator 5-pin connector and ATC computer 21-pin connector. See FAILURE CODES NO. 1, 2 OR 3 TEST table. FAILURE CODES NO. 1, 2 OR 3 TEST TABLE ATC Computer 16-Pin Connector Blend-Air Door Pin No. Pin No. Actuator Pin No ) If any circuit is open, repair wiring and retest. If continuity exists, plug connectors back in. If testing for failure Code No. 1, go to next step. If testing for failure Code No. 2, go to step 6). 4) Set ATC control panel to "65" and wait 30 seconds. Connect a voltmeter to pin No. 8 of ATC computer. See Fig. 5. Adjust temperature setting to "85" and monitor voltage. Voltage should increase from its present value to a value greater than 4 volts and then stop. 5) If value is as indicated and failure Code No. 1 is issued, replace ATC computer. If value is incorrect, replace blend-air door actuator and retest system. If error code still exists, replace ATC computer. 6) Set ATC control panel to "85" and wait 30 seconds. Connect a voltmeter to pin No. 8 of ATC computer. Adjust temperature setting to "65" and monitor voltage. Voltage should decrease from its present value to a value less than one volt. 7) If value is as indicated and failure Code No. 2 is issued, replace ATC computer. If value is incorrect, replace blend-air door actuator and retest system. If error code still exists, replace ATC computer. Failure Code No. 4 Test 1) Manually increase blower speed from one to 8 segments (as indicated by blower speed symbol). If blower motor goes to high speed, go to step 4). If not, remove ATC computer. 2) Disconnect wiring harness and measure resistance between pins No. 2 and 12. See Fig. 5. Resistance should be ohms. If correct, replace ATC computer. If not, go to next step. 3) Check continuity between connector pin No. 2 of ATC computer and pin No. 13 of Power/Vacuum Module (PVM). If continuity is okay, replace PVM. If no continuity exists, repair wiring and retest. 4) Check to see if A/C compressor cycles on and off by pushing "A/C" button on and off while NOT in defrost mode. If compressor cycles on and off, replace ATC computer. If not, go to next step. 5) Unplug low pressure cut-out switch (New Yorker) or electronic cycling switch (LeBaron) and run self-test again. If Code No. 4 DOES NOT appear, problem is between A/C switch and engine controller. 6) If Code No. 4 appears again, check continuity between cycling switch and connector pin No. 13 of ATC computer. If continuity A/C-HEATER SYSTEM - AUTO

10 exists, replace ATC computer. If no continuity exists, repair wiring and retest system. Failure Code No. 5 Test 1) Unplug low pressure cut-out switch (New Yorker) or electronic cycling switch (LeBaron) and run self-test again. If Code No. 5 DOES NOT appear, problem is between A/C switch and engine controller. 2) If Code No. 5 appears again, check continuity between cycling switch and connector pin No. 13 of ATC computer. If continuity exists, replace ATC computer. If no continuity exists, repair wiring and retest system. Failure Code No. 6 Test 1) Remove ATC computer. Disconnect wiring harness and measure resistance between pins No. 2 and 12. See Fig. 5. Resistance should be ohms. If correct, replace ATC computer. If not, go to next step. 2) Check continuity between connector pin No. 2 of ATC computer and pin No. 13 of Power/Vacuum Module (PVM). If continuity is okay, replace PVM. If no continuity exists, repair wiring and retest. Failure Code No. 7 Test 1) Depress "OFF" button on control panel. Remove ATC computer. Measure voltage at pin No. 4 of ATC computer. Reading should be greater than 4 volts. If reading is correct, replace ATC computer. If reading is less than 4 volts, go to next step. 2) If reading is between.4-.8 volts, replace ATC computer. If reading is NOT between.4-.8 volts, unplug 13-pin connector from PVM. See Fig. 5. Check continuity between connector pin No. 4 of ATC computer and pin No. 6 of PVM. If continuity exists, replace PVM. If no continuity exists, repair wiring and retest system. Failure Code No. 8 Test 1) Depress defrost button on control panel to set ATC computer in defrost mode. Remove ATC computer. Measure voltage at pin No. 5 of ATC computer. Reading should be greater than 4 volts. If reading is correct, replace ATC computer. If reading is less than 4 volts, go to next step. 2) If reading is between.4-.8 volts, replace ATC computer. If reading is NOT between.4-.8 volts, unplug 13-pin connector from PVM. See Fig. 5. Check continuity between connector pin No. 5 of ATC computer and pin No. 5 of PVM. If continuity exists, replace PVM. If no continuity exists, repair wiring and retest system. Failure Code No. 9 Test 1) Depress "OFF" button on control panel. Remove ATC computer. Measure voltage at pin No. 6 of ATC computer. Reading should be greater than 4 volts. If reading is correct, replace ATC computer. If reading is less than 4 volts, go to next step. 2) If reading is between.4-.8 volts, replace ATC computer. If reading is NOT between.4-.8 volts, unplug 13-pin connector from PVM. See Fig. 5. Check continuity between connector pin No. 6 of ATC computer and pin No. 4 of PVM. If continuity exists, replace PVM. If no continuity exists, repair wiring and retest system. Failure Code No. 10 Test 1) Depress "OFF" button on control panel. Remove ATC A/C-HEATER SYSTEM

11 computer. Measure voltage at pin No. 15 of ATC computer. Reading should be greater than 4 volts. If reading is correct, replace ATC computer. If reading is less than 4 volts, go to next step. 2) If reading is between.4-.8 volts, replace ATC computer. If reading is NOT between.4-.8 volts, unplug 13-pin connector from PVM. See Fig. 5. Check continuity between connector pin No. 15 of ATC computer and pin No. 2 of PVM. If continuity exists, replace PVM. If no continuity exists, repair wiring and retest system. Failure Code No. 11 Test 1) Depress "OFF" button on control panel. Remove ATC computer. Measure voltage at pin No. 16 of ATC computer. See Fig. 5. Reading should be greater than 4 volts. If reading is correct, replace ATC computer. If reading is less than 4 volts, go to next step. 2) If reading is between.4-.8 volts, replace ATC computer. If reading is NOT between.4-.8 volts, unplug 13-pin connector from Power Vacuum Module (PVM). Check continuity between connector pin No. 16 of ATC computer and pin No. 1 of PVM. If continuity exists, replace PVM. If no continuity exists, repair wiring and retest system. Failure Codes No. 12 & 13 Test 1) Remove ATC computer and disconnect wiring harness. Unplug connector from blend-air door actuator. Check continuity between blend-air door actuator 5-pin connector and ATC computer 21-pin connector. See FAILURE CODE NO. 12 & 13 TEST table. 2) If any circuits are open, repair wiring and retest. If continuity exists, plug connectors back in, replace blend-air door actuator, and retest system. If failure (code) still exists, replace ATC computer. FAILURE CODE NO. 12 & 13 TEST TABLE ATC Computer Pin No. Blend-Air Door Actuator Pin No Failure Code No. 14 Test 1) Remove ATC computer and disconnect wiring harness. Check resistance between connector pins No. 7 and 9 of ATC computer. With temperature between 30 F (-1 C) and 120 F (49 C), resistance reading should be ,000 ohms. If reading is correct, replace ATC computer. 2) If reading is incorrect, unplug 16-pin connector at A/Cheater housing (located above PVM). Check resistance between pins No. 10 and 14 on female connector held by metal bracket. 3) If reading is ,000 ohms, repair wiring between ATC computer and 16-pin male connector. If reading is incorrect, remove ambient temperature sensor and check its resistance. 4) If resistance is incorrect, replace ambient temperature sensor. If reading is correct, repair wiring between ambient temperature sensor and 16-pin female connector. Failure Code No. 15 Test 1) Remove ATC computer and disconnect wiring harness. Check A/C-HEATER SYSTEM - AUTOM

12 resistance between connector pins No. 7 and 20 of ATC computer. With temperature between 30 F (-1 C) and 90 F (32 C), resistance reading should be ,000 ohms. If reading is correct, replace ATC computer. 2) If reading is incorrect, remove in-car temperature sensor and test its resistance across terminals No. 1 and 4. If reading is incorrect, replace in-car temperature sensor. If resistance is correct, go to next step. 3) Check continuity between connector pin No. 20 of ATC computer and pin No. 1 of in-car temperature sensor connector, and between connector pin No. 7 of ATC computer and pin No. 4 of in-car temperature sensor connector. Repair wiring if necessary. Failure Codes No. 16, 17 & 18 Test Replace ATC computer and retest system. REMOVAL & INSTALLATION AMBIENT TEMPERATURE SENSOR Removal & Installation Remove glove box assembly. Remove 2 ambient temperature sensor mounting screws. Carefully remove sensor from A/C-heater housing. Unplug electrical connector from sensor. To install, reverse removal procedure. CONTROL PANEL Removal & Installation Remove cluster bezel. Remove control panel mounting screws. Pull control panel out slightly. Unplug electrical and vacuum connectors. Remove control panel from vehicle. To install, reverse removal procedure. BLEND-AIR DOOR ACTUATOR Removal & Installation Remove floor air distribution duct. Remove 2 blend-air door actuator mounting screws. Carefully lower and remove blend-air actuator from A/C-heater housing. See Fig. 6. Unplug electrical connector. To install, reverse removal procedure. Fig. 6: Blend-Air Door Actuator Courtesy of Chrysler Motors. BLOWER MOTOR A/C-HEATER SYSTEM -

13 Removal & Installation 1) Remove glove box assembly. Disconnect blower motor electrical connector. Disconnect vent tube from A/C-heater housing. Remove recirculation door actuator from housing with vacuum lines connected. 2) Remove 7 screws attaching recirculating air housing to A/C-heater housing. Remove recirculating air housing. Remove 3 blower motor mounting screws. Remove blower motor from A/C-heater housing. To install, reverse removal procedure. EVAPORATOR & HEATER CORE Removal & Installation 1) Disconnect negative battery cable. Discharge refrigerant A/C system using approved refrigerant recovery/recycling equipment. Drain coolant from radiator. Remove heater hoses from heater core. Plug heater core tubes to prevent spillage during removal. Disconnect vacuum lines from intake manifold and water valve. 2) Remove right scuff plate from upper quarter trim panel. Remove right cowl side trim panel. Remove glove box assembly. Remove automatic temperature control panel. Remove upper instrument panel pad. 3) Remove instrument panel mounting screws along windshield. If equipped, remove console assembly and mounting bracket. Remove 2 center duct assembly mounting screws. Remove center duct assembly. Remove floor air duct from A/C-heater housing. 4) Remove defroster adapter duct. Remove drain tube from evaporator. Disconnect electrical connectors. Remove right side cowlto-plenum brace. Pull carpet away from A/C-heater housing. Remove hanger-to-housing mounting screws. 5) Remove 4 A/C-heater mounting nuts from inside engine compartment. Lift up on dash assembly and pull A/C-heater housing out until mounting studs clear dash liner. Remove A/C-heater housing from vehicle. To install, reverse removal procedure. IN-CAR TEMPERATURE SENSOR Removal & Installation 1) On LeBaron, remove lower steering column cover. Remove screws and sensor/aspirator assembly from instrument panel. Unplug electrical connector. To install, reverse removal procedure. 2) On New Yorker, remove instrument cluster. Remove screws and sensor/aspirator assembly from instrument cluster opening. Unplug electrical connector. To install, reverse removal procedure. POWER/VACUUM MODULE (PVM) Removal & Installation 1) Remove glove box assembly. Remove lower center console mounting screws. Remove tray mounting screws. Remove lower center console and tray. Unplug electrical connector from ashtray. 2) Remove lower floor and panel air distribution ducts. Remove 4 PVM mounting screws. Unplug electrical and vacuum connectors from module. See Fig. 7. Carefully remove PVM from under instrument panel. To install, reverse removal procedure. A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 13)1989 Chrysler LeBaron SedanFor m m m m mcopyri

14 Fig. 7: Power/Vacuum Module (PVM) Courtesy of Chrysler Motors. MAIN VACUUM DIAGRAM A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 14)1989 Chrysler LeBaron SedanFor m m m m mcopyri

15 Fig. 8: Main Vacuum Diagram MODE VACUUM DIAGRAM A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 15)1989 Chrysler LeBaron SedanFor m m m m mcopyri

16 A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 16)1989 Chrysler LeBaron SedanFor m m m m mcopyri Fig. 9: Off Mode Vacuum Diagram

17 Fig. 10: Panel Mode Vacuum Diagram A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 17)1989 Chrysler LeBaron SedanFor m m m m mcopyri

18 Fig. 11: Bi-Level Mode Vacuum Diagram A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 18)1989 Chrysler LeBaron SedanFor m m m m mcopyri

19 Fig. 12: Floor Mode Vacuum Diagram A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 19)1989 Chrysler LeBaron SedanFor m m m m mcopyri

20 Fig. 13: Defrost Mode Vacuum Diagram A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 20)1989 Chrysler LeBaron SedanFor m m m m mcopyri

21 Fig. 14: Recirc. (Auto) Mode Vacuum Diagram A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 21)1989 Chrysler LeBaron SedanFor m m m m mcopyri

22 A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 22)1989 Chrysler LeBaron SedanFor m m m m mcopyri Fig. 15: Recirc. (Part) Mode Vacuum Diagram WIRING DIAGRAMS

23 Fig. 16: Automatic A/C-Heater Wiring Diagram - LeBaron A/C-HEATER SYSTEM - AUTOMATICArticle Text (p. 23)1989 Chrysler LeBaron SedanFor m m m m mcopyri

24 Fig. 17: Automatic A/C-Heater Wiring Diagram - Dynasty, New Yorker & New Yorker Landau A/C-HEATER END OF ARTICLE SYSTEM - AUTOMATICArticle Text (p. 24)1989 Chrysler LeBaron SedanFor m m m m mcopyri