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Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - General Information (2 Of 2) >> Diagnosis And Testing >> Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) >> Pinpoint Tests >> Pinpoint Test B: P0531, P0532, P0533, P1461, P1462

Pinpoint Test B: P0531, P0532, P0533, P1461, P1462

  1. Refer to Wiring Diagrams AUTOMATIC CLIMATE CONTROL SYSTEM for schematic and connector information.

    Normal Operation and Fault Conditions 

    A/C Pressure Transducer, REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    PCM P0531:00 A/C Refrigerant Pressure Sensor "A" Circuit Range/Performance: No Sub Type Information The A/C pressure transducer inputs a feedback voltage to the PCM. This DTC sets if the feedback voltage is higher or lower than expected (diesel).
    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.
    PCM P1461:00 A/C Pressure Sensor Circuit High: No Sub Type Information This DTC sets when the PCM senses high voltage (diesel).
    PCM P1462:00 A/C Pressure Sensor Circuit Low: No Sub Type Information This DTC sets when the PCM senses low voltage (diesel).

    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 cause damage to the connector.

  3. B1 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 +/- 103 kPa (15 psi)? 

    Yes  IGNORE the Diagnostic Trouble Codes (DTCs). REFER to the Symptom Charts .
    No  GO to  B2

  4. B2 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE

    • Ignition OFF.

    • Disconnect PCM C1235B (1.5L), C1915B (2.0L) or C175B (2.5L).

    • Disconnect A/C pressure transducer C1260.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1260-1
      GFD572855Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1260-2
      GFD572855Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1260-3
      GFD572855Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  GO to  B3

  5. B3 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
      GFD572856Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1260-2
      GFD572856Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1260-3
      GFD572856Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  B4
    No  REPAIR the circuit.

  6. B4 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR AN OPEN

    Are the resistances less than 3 ohms? 

    Yes  GO to  B5
    No  REPAIR the circuit.

  7. B5 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 REMOVAL AND INSTALLATION . TEST the system for normal operation. If the concern is still present, GO to  B6
    No  REPAIR the circuits.

  8. B6 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all PCM electrical connectors (if not previously disconnected).

    • Repair:

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

    • Connect all PCM electrical 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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