Automatic Transmission - 4R100: Overview Ford Econoline E150

Scheme 7

BAND AND CLUTCH APPLICATION CHART A

Scheme 8

BAND AND CLUTCH APPLICATION CHART B

Scheme 9

The following acronym definitions apply to (Scheme 9).

O/R - Overrunning

CC - Coast Friction Clutch Applied

BA - Band Applied

LINE PRESSURE CHART

Scheme 10

STALL SPEED

STALL SPEED

SHIFT SPEEDS - E-SUPER DUTY, E-350, E-450 WITH 5.4L (OVER 8500 GVW RATING)

Scheme 11

SHIFT SPEEDS - E-SERIES, SUPER DUTY, E-350, E-450 WITH 6.8L. THIS VEHICLE SPEED IS LIMITED TO 121KM/H (75MPH)

Scheme 12

FORWARD CLUTCH PACK

Scheme 13

DIRECT CLUTCH PACK

Scheme 14

INTERMEDIATE CLUTCH PACK

Scheme 15

COAST CLUTCH PACK

Scheme 16

LOW/REVERSE CLUTCH PACK

Scheme 17

OVERDRIVE CLUTCH PACK

Scheme 18

TRANSMISSION DESCRIPTION

This transmission features include

1. Four speeds.
2. Fully automatic.
3. Electronically controlled.

The main operating components include

Scheme 19

1. Torque converter clutch.
2. Six multiple-disc friction clutches.
3. One band.
4. One sprag one-way clutch.
5. Two roller one-way clutches that provide for the desired function of three planetary gearsets.

IDENTIFICATION TAGS

An identification tag is located on the left side of the transmission, rearward of the transmission range digital (TR) sensor.

Scheme 20

Electronic System Description

The powertrain control module (PCM) and its input/output network control the following transmission operations

1. Shift timing
2. Line pressure (shift feel)
3. Torque converter clutch operation

The transmission control is separate from the engine control strategy in the powertrain control module (PCM), although some of the input signals are shared. When determining the best operating strategy for transmission operation, the PCM uses input information from certain engine-related and driver-demand related sensors and switches.

Using all of these inputs signals, the PCM can determine when the time and conditions are right for a shift, or when to apply or release the torque converter clutch. It will also determine the best line pressure needed to optimize shift feel. To accomplish this the PCM uses output solenoids to control transmission operation.

The following provides a brief description of each of the sensors and actuators used by the PCM for transmission operation.

Code Description

1-2 shift error.

2-3 shift error.

3-4 shift error.

Shift solenoid circuit failure.

Shift solenoid circuit failure.

SSB circuit failure.

SSB circuit failure.

157°C(315°F) indicated, TFT sensor circuit grounded.

40°C (-40°F) indicated, TFT sensor circuit open.

No change in TFT - Low range

TCC solenoid circuit failure

TCC solenoid circuit failure.

Digital TR circuit failure.

Digital TR circuit failure.

Intermittent DTC codes P0705 or P0708.

Digital TR circuit reading in between gear position during KOEO.

Digital TR sensor circuits not reading PARK or NEUTRAL during KOEO/KOER.

PCM failure - electronic pressure control driver.

EPC circuit failure, shorted circuit or PCM.

EPC Signal Intermittent Short.

Insufficient Input from TSS sensor.

TSS Signal Intermittent

TSS Signal Noisy

Insufficient Input from OSS Sensor.

OSS Signal Noisy.

Insufficient Input from OSS Sensor.

CCS circuit failure.

SSA malfunction.

SSB malfunction.

Inductive signature chip communication error.

TCC malfunction

Pass

DI system concern.

MAP sensor vacuum circuit failure.

MAP sensor inactive.

Insufficient or intermittent vehicle speed input

Insufficient or intermittent vehicle speed input

Vehicle speed sensor intermittent.

TP or AP sensor circuit below minimum voltage, (open/shorted to ground).

TP or AP Sensor circuit above maximum voltage (short to vehicle power).

TP sensor voltage lower than expected.

A/C switch error

MAF sensor DTC

BARO circuit failure.

BARO circuit failure.

BPP switch circuit failed.

ICP sensor circuit failure. Out of range low.

ICP sensor circuit failure Out of range high.

MAP sensor out of On-Board Diagnostics range.

TP sensor out of On-Board Diagnostics range.

TCS not changing state.

TFT sensor out of On-Board Diagnostics range.

Brake not actuated during On-Board Diagnostics.

TCC slippage detected.

TCC slippage detected.