Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 1993 >> Crown Victoria V8-281 4.6L SOHC >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Transmission Temperature Sensor/Switch >> Description and Operation >> Temperature Sensor, Transmission Control
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Temperature Sensor, Transmission Control

DESCRIPTION

The Transmission Oil Temperature (TOT) Sensor is located on the transmission body. This device is a temperature sensitive thermistor. With varying temperature the resistance value of the TOT will change. The Powertrain Control Module (PCM) monitors the voltage across the TOT to determine the temperature of the transmission oil.

OPERATION

The PCM uses the TOT signal to determine if a "cold start" shift schedule is necessary.

The shift schedule is compensated when the transmission fluid temperature is cold. The PCM strategy will also prevent converter clutch engagement when the fluid is cold.
pro multis · About Operation CHARM