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)TESTINGDRB TEST FUNCTIONSNOTES
1994 Plymouth Sundance Base, 2D Hatchback, 2.2 D, Automatic
DRB Test Functions: Notes
1994 Plymouth Sundance Base, 2D Hatchback, 2.2 D, AutomaticSECTION Notes
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:
Do not touch DRB keypad during DRB power-up sequence, or an error message will result. Ensure correct DRB cartridge is being used.
- In order to perform diagnostic tests using the DRB, the DRB must be in the LH CLIMATE CONTROL menu. At the LH CLIMATE CONTROL menu, fault codes and DRB test functions can be accessed.
- To reach LH CLIMATE CONTROL menu, turn ignition off. Attach DRB to data link (diagnostic) connector. Connector is located under instrument cluster, next to center console. See Figure . Turn ignition switch to RUN position.
- All DRB character positions will illuminate and copyright information will appear on screen for a few seconds. If DRB screen is blank or any error messages appear, see DRB PROBLEMS & ERROR MESSAGES.
- After a few seconds, the DRB menu will appear. At DRB menu, press "4" (SELECT SYSTEM) key to enter diagnostic test program. Press down arrow 3 times to change menu display.
- At SELECT SYSTEM menu, select "9" (LH CLIMATE CONT) key to enter climate (A/C-heater) control part of the DRB program. After a few seconds, the LH CLIMATE CONTROL menu will appear. The screen will display a menu of the DRB test categories for the A/C-heater system.
- At LH CLIMATE CONTROL menu of A/C-heater system diagnostic program, specific test functions programmed into DRB cartridge can be performed. The following DRB modes can be accessed: CLIMATE TESTS, CLIMATE FAULTS, CLIMATE STATE, CLIMATE ACTUATORS and CLIMATE ADJUSTMENT.
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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.