Volvo Workshop Manuals
XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)
Relays and Modules > Relays and Modules - Transmission and Drivetrain > Relays and Modules - A/T > Control Module, A/T > Component Information > Description and Operation > System Overview > Page 1100
normal for the 1-2 and 2-3 shift to be noticeably delayed when the car engine is cold. This is a normal consequence of this function.
Temperature controlled lock-up
If the transmission temperature increases abnormally as a result of heavy load under high ambient temperature conditions, the torque converter lock-up
The slipping lock-up function provides smoother engagement with reduced vibration and decreased noise when a gear is engaged. In this mode, the
Gear selector in position D, 4 or 3
Gear 3, 4 or 5
The transmission input speed is 1100 rpm or more and the throttle opening is 35 % or less
The transmission oil temperature is 40 - 120°C.
Due to the torque converter slipping between 50-200 rpm, the friction properties of the transmission fluid are very important. The transmission fluid
The transmission control module (TCM) may change the gear shift pattern slightly when driving uphill. This is to avoid busy shifting.
Neutral control (only available on certain models)
This function is activated when the driver stops the car and the car is stationary, at traffic lights for example. The transmission control module (TCM)
Gear selector in position D, 4, or 3 when Winter mode and Geartronic are not selected Oil temperature above + 10°C
Oil temperature above + 10°C
Throttle position less than 3 %
Brake pedal depressed
Speed 0 km/h
Engine speed less than 1500 rpm.
There are two time factors for engagement: There is a 2 second delay in position D when stationary and a 5 second delay at N to D.
Shifting using Geartronic
When the gear selector is moved to the Geartronic position (MAN) the automatic transmission remains in hydraulic position D, but when the gear
When stationary only 1st, 2nd and 3rd gears can be selected. 4th gear can be selected at speeds in excess 30 km/h and 5th at speeds in excess of 40
Automatic down shifting occurs below a certain speed. Example: 2nd gear is selected. Automatic down shifting occurs when shifting from 2nd
Manual up shifting is required after automatic down shifting. Kick-down is not available in the Geartronic-position (MAN)
The permitted speed for manual down shifting corresponds to those for kick-down downshifting, i.e. engine speed at approximately 6 000 rpm
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