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 MANUALSCHEVROLET1982CITATION V6-173 2.8L VIN X 2-BBLREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSDATA LINK CONNECTORDESCRIPTION AND OPERATION
1982 Chevrolet Citation V6-173 2.8L VIN X 2-bbl
Data Link Connector: Description and Operation
1982 Chevrolet Citation V6-173 2.8L VIN X 2-bblSECTION Description and Operation
Fig. 2 Trouble Code Test Lead Identification:
OPERATION
The trouble code test lead is located under the dash in the Assembly Line Communications Link (ALCL), Fig. 2.
If the test lead is grounded with engine running, the ECM will control system operation as follows: No trouble codes will be set, "Open Loop" timer, start-up enrichment and blended enrichment will be deactivated and a 30° dwell signal will be sent to MC solenoid. Grounding the test lead with the ignition "ON" and engine "OFF" will cause the ECM to display any stored trouble codes.
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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.