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 MANUALSBUICK2005RENDEZVOUS AWD V6-3.6L VIN 7REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESSCAN TOOL TESTING - HVAC SYSTEM - MANUALSCAN TOOL DATA DEFINITIONS
2005 Buick Rendezvous AWD V6-3.6L VIN 7
Scan Tool Data Definitions
2005 Buick Rendezvous AWD V6-3.6L VIN 7SECTION Scan Tool Data Definitions
SCAN TOOL DATA DEFINITIONS
8 Digit GM Part Number : The scan tool displays the part number for service identification.
A/C High Side Pressure : The scan tool displays -103 to +3119 kPa (-14 to +452 psi). This parameter represents the A/C refrigerant pressure sensor voltage signal converted to pressure.
A/C High Side Pressure : The scan tool displays 0.00-5.00 Volts. This parameter represents the A/C refrigerant pressure sensor signal.
A/C Off For WOT : The scan tool displays Yes or No. Yes indicates that the PCM has disabled the A/C compressor because the TP sensor signal is at wide open throttle.
A/C Pressure Disable : The scan tool displays Yes or No. Yes indicates that the PCM has disabled the A/C compressor due to excessive refrigerant pressure.
A/C Relay Circuit Status : The scan tool displays OK or Fault. This parameter indicates the state of the driver circuit for this device.
A/C Relay Command : The scan tool displays On or Off. Represents the PCM commanded state of the A/C compressor clutch relay control circuit. The A/C compressor clutch should be engaged when Commanded A/C displays On.
A/C Request Signal : The scan tool displays Yes or No. The PCM uses the A/C request signal in order to determine if A/C compressor operation is being requested by the BCM.
A/C Switch : The scan tool displays Active or Inactive. Displays the state of the A/C request signal circuit from the HVAC control module to the BCM.
ECT Sensor : The scan tool range is -39°C to +140°C (-38°F to +284°F). Displays the temperature of the engine coolant.
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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.