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Home >> Ford >> 2018 >> Taurus Limited, FWD, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 115 (Climate Control System - General Information (1 Of 2)) >> Diagnosis And Testing >> Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) >> Pinpoint Test(s) >> Pinpoint Test A : P0532, P0533

Pinpoint Test A : P0532, P0533

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  1. Refer to MANUAL CLIMATE CONTROL SYSTEM for schematic and connector information.

    Normal Operation and Fault Conditions 

    The A/C pressure transducer receives a ground from the PCM. A 5-volt reference voltage is supplied to the A/C pressure transducer from the PCM. The A/C pressure transducer then sends a voltage to the PCM to indicate the A/C pressure.

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    PCM P0532:00 A/C Refrigerant Pressure Sensor "A" Circuit Low: No Sub Type Information The A/C pressure transducer inputs a feedback voltage to the PCM. This DTC sets if the feedback voltage is less than 0.620 volt for at least 1 second and the ambient air temperature is greater than 0 deg.C (32 deg.F).
    PCM P0533:00 A/C Refrigerant Pressure Sensor "A" Circuit High: No Sub Type Information The A/C pressure transducer inputs a feedback voltage to the PCM. This DTC sets if the feedback voltage is greater than 4.90 volts for at least 1 second and the ambient air temperature is greater than 0 deg.C (32 deg.F).

    Possible Sources 

    • Wiring, terminals or connectors
    • A/C pressure transducer
    • PCM

    Visual Inspection and Pre-checks 

    • Inspect for loose or corroded PCM and A/C pressure transducer connections.

  2. NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

  3. A1 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) PRESSURE SENSOR (ACP_PRESS) PID (PARAMETER IDENTIFICATION) WITH THE MANIFOLD GAUGE SET READINGS

    • Allow the A/C system to stabilize to the outside ambient temperature.

    • Ignition ON.

    • Using a diagnostic scan tool, view PCM Parameter Identifications (PIDs).

    • With the manifold gauge set connected, compare the pressure readings of the manifold gauge set and the PCM ACP_PRESS PID.

    Are the pressure values of the manifold gauge set and the ACP_PRESS PCM PID within +/- 103 kPa (15 psi)? 

    Yes  IGNORE the Diagnostic Trouble Codes (DTCs). REFER to the Symptom Chart(s) .
    No  GO to  A2

  4. A2 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE

    • Ignition OFF.

    • Disconnect PCM 1.0L C1232B, 1.5L Duratec C1926B, or 2.0L Duratec C1915B.

    • Disconnect A/C pressure transducer C1062.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1062-1
      GFD328094Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1062-2
      GFD328094Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1062-3
      GFD328094Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  GO to  A3

  5. A3 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1062-1
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1062-2
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1062-3
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  A4
    No  REPAIR the circuit.

  6. A4 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR AN OPEN

    • Measure:

      1.0L 

      Positive Lead Measurement / Action Negative Lead
      C1062-1
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 C1232B-18
      C1062-2
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 C1232B-52
      C1062-3
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 C1232B-11

      1.5L Duratec 

      Positive Lead Measurement / Action Negative Lead
      C1062-1
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 C1926B-33
      C1062-2
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 C1926B-44
      C1062-3
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 C1926B-52

      2.0L 

      Positive Lead Measurement / Action Negative Lead
      C1062-1
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 C1915B-18
      C1062-2
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 C1915B-52
      C1062-3
      GFD328095Courtesy of FORD MOTOR COMPANY
      		 C1915B-11

    Are the resistances less than 3 ohms? 

    Yes  GO to  A5
    No  REPAIR the circuit.

  7. A5 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TOGETHER

    Are the resistances greater than 10, 000 ohms? 

    Yes  INSTALL a new A/C pressure transducer. REFER to: Air Conditioning (A/C) Pressure Transducer . TEST the system for normal operation. If the concern is still present, GO to  A6
    No  REPAIR the circuits.

  8. A6 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all PCM connectors.

    • Repair:

      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary

    • Reconnect all PCM connectors. Make sure they seat and latch correctly.

    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, Refer to PCM GUIDED ROUTINE TESTING
    No  The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
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