XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)
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If the transmission temperature becomes too high the transmission control module (TCM) determines the shift position. The purpose is to maintain
a gear where lock-up is possible at the current speed
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Lock-up is possible in 3rd, 4th and 5th gears. (1st and 2nd gears do not have lock-up).
Other
In position MAN the lever position signal to the gear selector module (GSM) is generated as follows:
For each of the three gear selector positions a hall sensor is mounted on the printed circuit board for the gear selector control module (GSM). A
permanent magnet on the lever affects the output signals from the sensors to the control module. The control module can read off the position of the
lever through the differences in the signal characteristics.
Shift-lock
To avoid any chance of the gear selector inadvertently moving from the P position, the car is also equipped with an electrically operated shift-lock
function. This locks the interlock pin in the gear selector lever in the shift-lock section, locking the selector lever in the P position. To move the gear
selector from the P position, the ignition must be switched on and the brake pedal depressed. (The stop lamp switch is activated.). The central
electronic module (CEM) reads the position of the brake pedal via direct connection to the brake pedal sensor and transmits a signal to the gear
selector control module (GSM) to deactivate the solenoid in the gear lever selector. The solenoid lock pin is pushed in and the gear selector lock
button can be pressed down as usual to select another gear. When the ignition is in position "0", the solenoid is deactivated. In this position the shifter
is mechanically locked by the key lock cable.
Ignition switch interlock
An interlock and security feature (ignition switch interlock) is mechanically connected to the ignition switch by a cable. The ignition switch interlock
is controlled by the position of the lock cylinder in the ignition switch and by the position of the gear selector. This means that the gear selector must
be in the P-position for the ignition key to be removed from the ignition switch. The ignition key must be turned to position I or II before the lever can
be moved from the P position. The ignition switch interlock is used only in combination with shift-lock.
Park neutral position (PNP) function
The gear-shift position sensor has a park neutral position (PNP) function to prevent the engine being started with a gear selected. This function
prevents the engine being started unless the P or N positions are selected. This prevents the car from lurching forwards when started. For further
information, see Design and Function, central electronic module (CEM).
Adaptation data
There are two functions for adaptation in the transmission control module (TCM) software which can be activated:
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Resetting adaptation - carried out after replacing internal components or the entire transmission
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Adaptation function - This function helps the mechanic to adapt the transmission. It makes it easier to reset the function of the transmission after
repair or replacement of, for example:
