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Automatic Transmission (Diagnostics), 2.5L: Overview Saab 9-2X I

Automatic Trans 2 illustrations ~240 words

OPERATION OF SELECT LEVER

Make sure there is no abnormal noise, dragging or contact pattern in each select lever range.

WARNINGStop the engine while checking operation of select lever.

Scheme 559

Scheme 559

OPERATION

Refer to VEHICLE DIAGNOSTIC INTERFACE for information about how to obtain and understand DTC.

Note. DTC cannot be read through AT OIL TEMP warning light.

WARNINGObserve the road traffic law.

Move the select lever to "D" range, and then drive the vehicle at 60 km/h (37 MPH) for at least 10 seconds.

When any on-board diagnostics item is malfunctioning, the display on AT OIL TEMP warning light blinks from the time malfunction is detected after starting the engine until ignition switch is turned to OFF. The malfunctioning part or unit can be determined by a DTC during on-board diagnostics operation. Problems which occurred previously can also be identified through the memory function. If the POWER indicator does not show a problem (although a problem is occurring), the problem can be determined by checking the performance characteristics of each sensor using Vehicle Diagnostic Interface. The indicator signal is as shown in the figure.

Scheme 560

Scheme 560: OPERATION
  1. Ignition switch (engine OFF)
  2. Normal
  3. 2 secs
  4. Abnormal (Trouble occurs)
  5. 0.25 secs
  6. Blink
  7. Normal (ATF temperature is high)
  8. ATF temperature is high

Execute the inspection if AT OIL TEMP warning light dies not operate normally.

CHECK OPERATION OF BRAKE LIGHT

Depress the brake pedal.

Does the brake light illuminate?

YES. Go to CHECK TCM INPUT SIGNAL .

NO

Check the brake light circuit.