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Home >> Ford >> 2020 >> Fusion Titanium Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 43 (Climate Control System - General Information (2 Of 2) (Except Hybrid)) >> Diagnosis And Testing >> Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) >> Pinpoint Tests >> Pinpoint Test A : P0532, P0533

Pinpoint Test A : P0532, P0533

WARNING: This page is about a different variant/trim than selected.
  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 lower than expected.
    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 expected.

    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 PCMPID within +/- 15 psi (103 kPa)? 

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

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

    • Ignition OFF.

    • Disconnect PCM 1.5L C1915B, 2.0L C1381B, 2.5L C1551B, or 2.7L C1231B.

    • Disconnect A/C pressure transducer C1260.

    • Disconnect Generator current sensor C1645.

    • Disconnect Turbocharger boost pressure (tcbp) sensor C1694 (if equipped).

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1260-1
      GFD484166Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1260-2
      GFD484166Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1260-3
      GFD484166Courtesy 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
      C1260-1
      GFD484170Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1260-2
      GFD484170Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1260-3
      GFD484170Courtesy 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

    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 the appropriate procedure in Removal And Installation . 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

    • Connect the 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 service articles: 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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