Road Test

Document Preview

Upshift Control and Torque Converter Clutch (TCC) Apply

The PCM calculates the upshift points based primarily upon two inputs:

  • Throttle angle

  • Vehicle speed

When the PCM indicates that a shift should occur, an electrical signal is sent to the shift solenoids, which in turn move the valves t...

Attention!

To view the rest of this document requires a subscription. Subscriptions start at only $15.00. Click the button below to view the subscription options and to sign up.

Subscribe

Notice!

You may preview the service manual table of contents by clicking below.

Service Manual Table of Contents

Document Tags

Document Title: Road Test

upshift

control

torque

converter

clutch

apply

inputs

throttle

angle

vehicle

speed

shift

occur

electrical

move

perform

order

scan

tool

monitor

point

check

manual

test

with

gear

selector

overdrive

following

percent

accelerate

important

engine

operating

conditions

electronic

temperature

drive

verify

third

fourth

diagnosis

transmission

depress

pedal

reverse

km

mph

accelerator

results

downshifts

immediately

solenoid

valve

release

moving

observe

slows

second

mph

first

stopped

shift speed

shift point

percent throttle

fourth gear

vehicle speeds

speeds km

transmission downshifts

gear immediately

shift solenoid

release accelerator

moving gear

gear observe

following results

engine slows

slows vehicle

observe following

with vehicle

vehicle stopped

stopped gear

conditions shift

calculates upshift points

upshift points based

points based primarily

based primarily upon

indicates shift occur

electrical signal shift

signal shift solenoids

shift solenoids turn

valves perform upshift

shift speed charts

speed charts throttle

charts throttle angle

order shift speed

shift speed measurement

speed measurement more

uniform accurate scan

accurate scan tool

scan tool used

tool used order

monitor throttle angle

throttle angle scan

angle scan tools

scan tools programmed

record shift point

shift point information

point information check

information check instruction

check instruction manual

order test available

following steps shift

steps shift speed

shift speed percent

speed percent throttle

angle desired shift

desired shift speeds

board diagnostics tech

tool monitor percent

monitor percent throttle

percent throttle opening

throttle opening vehicle

opening vehicle speed

accelerate using steady

using steady increasing

steady increasing throttle

pressure important shift

important shift points

shift points vary

interprets numerous electronic

numerous electronic signals

electronic signals operational

sensors vehicle variation

vehicle variation shift

points shift speed

shift speed point

speed point gear

point gear engagement

apply unless engine

unless engine coolant

reached minimum operating

minimum operating temperature

approximately minutes verify

that temperature exceeded

temperature exceeded torque

exceeded torque converter

fourth gear speed

gear speed shift

speed shift point

notice apply torque

apply torque converter

converter clutch evaluation

clutch evaluation diagnosis

evaluation diagnosis torque

diagnosis torque converter

throttle detent downshift

vehicle speeds km

mph fourth gear

fourth gear quickly

gear quickly depress

open position verify

position verify following

shift solenoid valve

solenoid valve turns

release accelerator pedal

moving gear selector

gear selector third

engine slows vehicle

slows vehicle down

solenoid valve gear

valve gear selector

gear selector second

observe following results

transmission immediately downshifts

gear selector first

with vehicle stopped

vehicle stopped gear

stopped gear selector

accelerate order observe

observe following conditions