2.5L - AIR CONDITIONING (A/C) INOPERATIVE AND/OR MESSAGE
CENTER AMBIENT AIR TEMPERATURE DISPLAY INACCURATE - DTCS
P0073, P0074 AND/OR U0422

TSB 16-0054

FORD:
2014-2016 Transit Connect
ISSUE
Some 2014-2016 Transit Connect vehicles equipped with 2.5L engine may exhibit an intermittent condition in which the
ambient air temperature (AAT) display in the instrument panel cluster (IPC) is inaccurate and/or the A/C is inoperative.
The inoperative A/C may be caused by the AAT reading below -1.1 °C (30 °F) the actual ambient temperature is above
-1.1 °C (30 °F) with diagnostic trouble codes (DTCs) P0073, P0074 and/or U0422.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Does the AAT display in the IPC read inaccurate and/or the AAT temp reading is below -1.1 °C (30 °F) with A/C
inoperative?
a. Yes - proceed to Step 3.
b. No - proceed to Step 2.
2. Connect the Ford Integrated Diagnostic System (IDS) service tool or equivalent scan tool to the data link connector
(DLC). Check for DTCs and historical powertrain DTCs. Are DTCs U0422 stored in the IPC and/or P0073 and/or
P0074 stored in the powertrain control module (PCM) memory or in the historical powertrain DTCs snapshot data?
a. Yes - proceed to Step 3.
b. No - this article does not apply. Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual for normal
diagnostics.
3. Using IDS, reset the keep alive memory (KAM).
4. Is the AAT display in the IPC display accurate and does the A/C resume function?
a. Yes - replace AAT sensor. Refer to Workshop Manual (WSM), Section 412-00 and proceed to Step 5.
b. No - this article does not apply. Refer to PC/ED manual for normal diagnostics.
5. Replace the AAT sensor connector using the pigtail connector kit.
a. Disconnect the negative battery cable. Refer to WSM, Section 414-01.

NOTE: The information contained in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job
properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service.The
procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership
to determine whether the bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan
coverage unless stated otherwise in the TSB article.The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves
the right to supercede this information with updates.The most recent information is available through Ford Motor Company's on-line technical resources.

Copyright © 2016 Ford Motor Company

Online Publication Date March 29, 2016

PAGE1

TSB 16-0054 (Continued)

b. Take the AAT sensor connector pigtail from the connector kit and cut to size.
(1)

The overall length should not exceed 15 cm (6"). Take measurement from the back of the AAT sensor
connector to the middle of the harness node. (Figure 1A)

Figure 1 - Article 16-0054
c.

Use Rotunda Coroplast™ electrical wire harness tape or equivalent. Wrap 15 cm (6") length of wire of the pigtail
harness. Leave enough wire from the pigtail exposed to splice it to the main harness. (Figure 1)

d. Fold back the AAT sensor connector harness so that 17 mm (5/8") of wire is bent from the back of the connector
and 17 mm (5/8") of wire is bent from the front of the connector. (Figure 2A)

Figure 2 - Article 16-0054
e. Use a half-width piece of electrical tape and tape the harness to the connector.
(1)
f.

Avoid taping over the locking tab of the connector.

Remove and save the wiring convolute from the engine wiring harness and cut the AAT sensor connector wires 10
mm (3/8") away from the connector on the engine harness. Cut each circuit individually.

g. Refer to the instructions in the AAT sensor connector pigtail kit for installation.
h. Take the saved convolute from Step 5f and cut a length approximately 60 mm (2 3/8"). Install the convolute over the
new AAT sensor connector harness. (Figure 1B)

PAGE2

TSB 16-0054 (Continued)

i.

Using Rotunda Coroplast™ electrical wire harness tape or equivalent electrical tape, tape under the convolute first
and leave 10 mm (3/8" ) of the tape beyond the convolute, then tape over the convolute starting at the end nearest
to the connector back to the harness. (Figure 3)

Figure 3 - Article 16-0054
(1)

Avoid taping over the locking tab of the connector.

6. Connect the new connector to the AAT sensor. Refer to WSM, Section 412-00.
7. Connect the negative battery terminal. Refer to WSM, Section 414-01.
Obtain Locally
Part Description
Rotunda Coroplast™ Electrical Wire Harness Tape
Standard Electrical Tape

Part Number
NAI837X

PART NUMBER

PART NAME

AU2Z-14S411-AGB

Pigtail Connector Kit Assembly

AU5Z-12A647-B

Ambient Temperature Sensor

OPERATION
160054A

DESCRIPTION

TIME

2014-2016 Transit Connect 2.5L: Retrieve DTCs And Replace The AAT
Sensor And AAT Sensor Connector Following The Service Procedure
(Do Not Use With Any Other Labor Operations)

1.1 Hrs.

WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are
determined by the identified causal part and verified using the OASIS part coverage tool.
DEALER CODING
BASIC PART NO.
14290

PAGE3

CONDITION CODE
x2