Mazda MX-6 1998, Workshop Manual

Page: 816 / 1282

AUTOMATIC TRANSAXLE [LA4A-EL]
Transaxle fluid temperature (TFT)
1. Set an ohmmeter to the 1,000 ohm range.
2. Connect the positive lead to the + TFT jack.
3. Connect the negative lead to the - TFT jack.
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4. Record the resistace. Resistance will vary with
temperature.
5. Refer to the chart for the valves.
Tem perature “ C {°F }
R esistance k fì
-4 0 ------20 (-4 0 ------ 4)
967— 284
T—
C
O
I
i
T
I
C
D
T
284— 100
0— 20 {32— 68} 100— 37
2 1 - 4 0 {59— 104}
37— 16
41— 70 {105— 158}
16— 5
71— 9 0 (1 5 9 — 194}
5— 2.7
91— 110(195— 230}
2.7— 1.5
111— 130 {231— 266}
1.5— 0.8
131— 150 {267— 302}
0.8— 0.54
6. If out of range, refer to the Pinpoint test BA, BB,
BC, BD, BE, BF. (Refer to 0 5 -0 1 A AUTOMATIC
TRANSAXLE ON-BOARD DIAGNOSIS
[LA4A-EL].)
Turbine shaft speed (TSS) sensor
1. Set an ohmmeter to the 1,000 ohm range.
2. Connect the postive lead to the +TSS jack.
3. Connect the negative lead to the -T S S jack.
Solenoid voltage tests
Note
• LED will turn “GREEN” when solenoid
activates and turn “OFF” when deactivated.
LED will turn “ RED” if an activated
solenoid/harness is shorted to BAT+. LED will
remain “OFF” if an activated solenoid/harness
is shorted to ground or no continuity.
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STA TU S 1 2 3 4
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1. Set Bench/Drive switch to “BENCH” mode.
2. Set an voltmeter to the 20 volt D.C. range.
3. Connect the voltmeter positive lead to the
appropriate solenoid power circuit.
4. Connect voltmeter negative lead to the
appropriate solenoid.
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5. Using the voltmeter, check for voltage across
each solenoid by activating the solenoid switch.
Select the appropriate solenoid with the rotary
switch and depress the corresponding solenoid
switch. The “LED” should illuminate, the voltage
should change, and an audible click is heard. If
“ LED” does not illuminate, there is a short to
ground condition.
6. Observe and record the values.
Dynamic testing-engine “ON”
Dynamic testing is the final step in the transaxle tester
usage. It allows the transaxle to be proven out
electronically and hydraulically.
4. Record the resistance.
5. TSS should be 140— 290 ohm.
6. If out of range, refer to the Pinpoint test F.
(Refer to 0 5 -0 1 A AUTOMATIC TRANSAXLE
ON-BOARD DIAGNOSIS [LA4A-EL].)
0 5 -1 7A-11