Subaru 2002 IMPREZA Service Manual page 1591

3. General Description
A: CAUTION
• Supplemental Restraint System "Airbag"
The airbag system wiring harness is routed near
the transmission control module (TCM).
CAUTION:
• All airbag system wiring harness and con-
nectors are colored yellow. Do not use an elec-
trical test equipment on these circuit.
• Be careful not to damage the airbag system
wiring harness when performing diagnostics
and servicing the TCM.
• Measurement
When measuring the voltage and resistance of
ECM, TCM or each sensor, use a tapered pin with
diameter of less than 0.64 mm (0.025 in) in order to
avoid poor contact. Do not insert the pin more than
6.5 mm (0.256 in).
B: INSPECTION
1. BATTERY
Measure the battery voltage and specific gravity of
electrolyte.
Standard voltage: 12V or more
Specific gravity: Above 1.260
2. TRANSMISSION GROUND
Make sure that the ground terminal bolt is tightened
securely.
• Chassis side
Tightening torque:
13 N·m (1.3 kgf-m, 9.4 ft-lb)
GENERAL DESCRIPTION
3. ATF LEVEL
Make sure that ATF level is in the specification.
<Ref. to AT-9, INSPECTION, Automatic Transmis-
sion Fluid.>
4. FRONT DIFFERENTIAL OIL LEVEL
Make sure that front differential oil level is in the
specification. <Ref. to AT-11, INSPECTION, Differ-
ential Gear Oil.>
5. OPERATION OF SHIFT SELECT LEVER
Make sure there is no abnormal noise, dragging or
contact pattern in each select lever range.
WARNING:
Stop the engine while checking operation of se-
lector lever.
TR0373
AT-5
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
(A) Upper level
(B) Lower level
(A) Upper level
(B) Lower level
B3M0173B
B3M0174B
B3M1747