WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Ford Transit-350 HD, 2018 Ford Transit-350, 2018 Ford Transit-250, 2018 Ford Transit-150, and 2018 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.

This pinpoint test is intended to diagnose the following:

harness circuits: TACM+, TACM-, TP, SIGRTN and VREF
intake throttle actuator (9E926)
PCM (12A650)

Fig 1: Intake Throttle Actuator Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-150	A	2 1 3 4 5	TACM- TACM+ TP SIGRTN VREF
Transit	B	4 1 6 2 3	TACM- TACM+ TP SIGRTN VREF
All other vehicles	C	2 6 5 3 1	TACM- TACM+ TP SIGRTN VREF

Fig 2: Powertrain Control Module-E (PCM-E) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Transit	A	44 43 16	TACM- TACM+ TP
All other vehicles	B	44 45 29	TACM- TACM+ TP

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Pinpoint Tests Ax: Intake Throttle: Introduction

Use the Manual With the Right Hardware

When to See a Mechanic