GM 6-Pin A/C Expansion Valve & Pressure Sensor Connector – OEM | Chevrolet GMC
Direct OEM-specification replacement for the GM 6-pin connector used on A/C (air conditioning) expansion valves and refrigerant pressure sensors. Used across Chevrolet, GMC, Buick, and Cadillac platforms in the A/C system harness. Available bare or with 15cm pre-wired leads.
| Pin Group | Function | Failure Symptom if Corroded |
|---|---|---|
| Pins 1–2 | Expansion valve solenoid power and ground | A/C not cooling, expansion valve stuck open/closed |
| Pins 3–4 | High-side pressure sensor signal and reference | P0530 / P0533 — A/C pressure sensor circuit fault |
| Pins 5–6 | Low-side pressure sensor signal and ground | A/C compressor not engaging, P0532 |
| Attribute | Detail |
|---|---|
| Pin Count | 6-Pin |
| Housing Material | Nylon (PA66), refrigerant-resistant |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | A/C expansion valve harness, refrigerant pressure sensor harness |
| Compatible Brands | Chevrolet, GMC, Buick, Cadillac |
| Code | Description |
|---|---|
| P0530 | A/C refrigerant pressure sensor — circuit malfunction |
| P0532 | A/C refrigerant pressure sensor — circuit low |
| P0533 | A/C refrigerant pressure sensor — circuit high |
Q: My GM A/C blows warm and has P0530 — is it the connector?
A: P0530 means the PCM cannot read the A/C pressure sensor. A corroded 6-pin connector causes the PCM to disable the compressor as a safety measure. Inspect the connector before recharging the system or replacing the pressure sensor.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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6 Pin Connectors
