P1537 GMC Possible Causes
- Faulty A/C Clutch Relay
- A/C Clutch Relay harness is open or shorted
- A/C Clutch Relay circuit poor electrical connection
First diagnose P1537 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 P1537 GMC code
Labor: 1.0The cost of diagnosing the P1537 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.
P1537 GMC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1537 GMC MeaningThe Powertrain Control Module (PCM) activates the A/C clutch relay when the PCM detects an A/C request. Voltage is present at both the A/C compressor clutch and the A/C clutch status terminal at the PCM when the relay is activated.
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