P1543 GMC Possible Causes
- Faulty A/C System
- A/C System harness is open or shorted
- A/C System circuit poor electrical connection
First diagnose P1543 GMC code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P1543 GMC code
Labor: 1.0The cost of diagnosing the P1543 GMC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
P1543 GMC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1543 GMC MeaningWith the engine running, the Powertrain Control module (PCM) detects that the A/C refrigerant charge was below a specified value (determined by the Evaporator Temperature and Refrigerant Pressure inputs)
P1543 GMC More InformationNeed more information on how to fix the P1543 GMC code?
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