9-3 Viggen Coupe (9400) L4-2.3L Turbo (B235) HO (1999)
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A fault in the temperature sensor can generate the following 3 diagnostic trouble codes:
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If the temperature increases or decreases too slowly during the first 15 minutes of driving, diagnostic trouble code P0711 will be generated.
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A short-circuit to ground for 5 minutes will generate diagnostic trouble code P1812.
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An open/short circuit to B+ for 15 minutes will generate diagnostic trouble code P1813.
Adaptive shifting programs
If the temperature rises to 150 °C, Lock-Up will be engaged in 2nd gear. Engaging Lock-Up prevents slip in the torque converter, which makes the
temperature drop.
The adaptive temperature program is disengaged if:
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SPORT or WINTER are selected
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The ignition is switched OFF
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CHECK GEARBOX lamp lights up
^
The temperature has sunk to a level at which the adaptive shifting program is no longer needed.
