Pinpoint Test B : P0532, P0533

WARNING: This page is about a different car, the 2017 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

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

B1 COMPARE THE A/C PRESSURE SENSOR (ACP_PRESS) PCM (POWERTRAIN CONTROL MODULE) 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 ACP_PRESS PCM PID.
- With the manifold gauge set connected, compare the pressure readings of the manifold gauge set and the ACP_PRESS PCM PID.
Are the pressure values of the manifold gauge set and the ACP_PRESS PCM PID within ± 103 kPa (15 psi)?

Yes IGNORE the DTC. REFER to Symptom Chart(s) .

No GO to B2

B2 CHECK THE A/C PRESSURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect PCM C1551B (1.5L), C1381B (2.0L), C175B (2.5L).

Disconnect A/C pressure transducer C1260 .

Disconnect turbocharger boost pressure/charge air cooler temperature sensor C1588 (if equipped).

Disconnect crankcase pressure sensor C1647 (if equipped).

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1260-1	Courtesy of FORD MOTOR COMPANY	Ground
C1260-2	Courtesy of FORD MOTOR COMPANY	Ground
C1260-3	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

GO to B3

B3 CHECK THE A/C PRESSURE SENSOR CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1260-1	Courtesy of FORD MOTOR COMPANY	Ground
C1260-2	Courtesy of FORD MOTOR COMPANY	Ground
C1260-3	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms?

Yes

GO to B4

No	REPAIR the circuit.

B4 CHECK THE A/C PRESSURE SENSOR CIRCUITS FOR AN OPEN

For vehicles equipped with a 1.5L engine, measure:

Positive Lead	Measurement / Action	Negative Lead
C1260-1	Courtesy of FORD MOTOR COMPANY	C1551B-24
C1260-2	Courtesy of FORD MOTOR COMPANY	C1551B-67
C1260-3	Courtesy of FORD MOTOR COMPANY	C1551B-17

For vehicles equipped with a 2.0L engine, measure:

Positive Lead	Measurement / Action	Negative Lead
C1260-1	Courtesy of FORD MOTOR COMPANY	C1381B-18
C1260-2	Courtesy of FORD MOTOR COMPANY	C1381B-52
C1260-3	Courtesy of FORD MOTOR COMPANY	C1381B-11

For vehicles equipped with a 2.5L engine, measure:

Positive Lead	Measurement / Action	Negative Lead
C1260-1	Courtesy of FORD MOTOR COMPANY	C175B-33
C1260-2	Courtesy of FORD MOTOR COMPANY	C175B-44
C1260-3	Courtesy of FORD MOTOR COMPANY	C175B-52

Are the resistances less than 3 ohms?

Yes

GO to B5

No	REPAIR the circuit.

B5 CHECK THE A/C PRESSURE SENSOR CIRCUITS FOR A SHORT TOGETHER

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1260-1	Courtesy of FORD MOTOR COMPANY	C1260-2
C1260-1	Courtesy of FORD MOTOR COMPANY	C1260-3
C1260-2	Courtesy of FORD MOTOR COMPANY	C1260-3

Are the resistances greater than 10, 000 ohms?

Yes

INSTALL a new A/C pressure transducer. REFER to: Air Conditioning (A/C) Pressure Transducer - 1.5L EcoBoost (132kW/180PS) - I4 .REFER to: Air Conditioning (A/C) Pressure Transducer - 2.0L EcoBoost (177kW/240PS) - MI4 . REFER to: Air Conditioning (A/C) Pressure Transducer - 2.5L Duratec (125kW/170PS) . TEST the system for normal operation. If the concern is still present, GO to B6

No	REPAIR the circuits.

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, INSTALL a new PCM. REFER to: Powertrain Control Module (PCM) 1.5L EcoBoost (132kW/180PS) - I4 . REFER to: Powertrain Control Module (PCM) 2.0L EcoBoost (177kW/240PS) - MI4 . REFER to: Powertrain Control Module (PCM) 2.5L Duratec (125kW/170PS) .

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.