Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPLYMOUTH1994SUNDANCE BASE, 2D HATCHBACK, 2.2 D, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 18 (A/C-HEATER SYSTEM - MANUAL)ADJUSTMENTSIN-VEHICLE CALIBRATION
1994 Plymouth Sundance Base, 2D Hatchback, 2.2 D, Automatic
In-Vehicle Calibration
1994 Plymouth Sundance Base, 2D Hatchback, 2.2 D, AutomaticSECTION In-Vehicle Calibration
WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Any change in switch positions will abort calibration. Control panel EEPROM memory will store calibration values. Default values will be used if a problem is detected.
- Mode and temperature door calibration compensates for mechanical differences in actuators, A/C heating unit and linkages. Mode door selector, temperature selector, rear defogger switch LED and blower switch are used to set calibration.
- To enter calibration, turn engine on and set parking brake. Turn blower switch on, temperature selector to full cold position and mode door selector to defrost position. A/C and rear defogger switches can be in ON or OFF position. Depress and hold rear defogger switch. After 3-5 seconds, rear defogger LED will flash indicating calibration is taking place. Release button when LED begins to flash. If LED goes out after approximately 30 seconds, calibration is complete and system is okay. LED will stay on steady if calibration is unsuccessful.
- To exit calibration and return to normal operation, change position of any one of the following: temperature selector, A/C switch, rear defogger switch or turn blower switch off. See FUNCTIONAL TEST under TROUBLE SHOOTING for diagnostic procedures.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.