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)TESTINGTESTING PROCEDUREDIAGNOSTIC PROCEDURE
1994 Plymouth Sundance Base, 2D Hatchback, 2.2 D, Automatic
Diagnostic Procedure
1994 Plymouth Sundance Base, 2D Hatchback, 2.2 D, AutomaticSECTION Diagnostic Procedure
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.
- To properly diagnose and test A/C-heater control system, ALWAYS start diagnosis at IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS test. Starting with any other test may result in incorrect diagnosis. Ensure battery is fully charged and charging system is functional.
- DO NOT backprobe connectors unless specified. Probe connector cavities carefully. DO NOT spread terminal(s). This could cause an intermittent problem. DO NOT cause short circuits when performing electrical tests. This will set additional fault codes, making diagnosis of original problem more difficult.
- Use DRB voltmeter unless instructed to use an external voltmeter. DO NOT use a test light in place of a voltmeter. Use DRB ohmmeter unless instructed to use an external ohmmeter. Always perform VERIFICATION TEST after repairs are made. Always disconnect DRB after use.
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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.