Mazda MX-6 1998, Руководство по ремонту, Страница: 690 / 1282

TROUBLESHOOTING [LA4A-EL]
STEP
INSPECTION ACTION
BE4
CHECK RESISTANCE OF TFT
SENSOR/HARNESS
Note
• Refer to the transaxle tester for terminal
location.
• Ensure that the emission harness is
disconnected.
• Install transaxle tester to solenoid body
connector.
• Set bench/drive switch to BENCH mode.
• Rotate gear slector switch to OHMS check
position.
• Connect ohmmeter negative lead to -T F T jack
and positive lead to +TFT jack of tester.
• Perform tests 1 and 2.
Note
• W hile performing tests 1 and 2 observe
resistances.
Code P0713 is set if resistance value exceeds
869K ohms (OPEN circuit).
Code P0712 is set if resistance value falls
below 597 ohms (Short circuit).
TEST 1
• Record resistance.
• Resistance should be approximately in the
following ranges:
Transaxle fluid temperature
c r 0 5 -1 7A ELECTRICAL SYSTEM
COMPONENT [LA4A-EL], Transaxle Tester
Instruction, Transaxle fluid temperature
(TFT)
TEST 2
• Check for intermittent short or open.
• If resistance was between 0.8K and 100K
ohms, perform the following test. If transaxle is
cold, run transaxle to warm it up. If transaxle is
warm, allow transaxle to cool. Check TFT
sensor resistance again. Compare resistance
with internal resistance. Resistance should
decrease if transaxle was warmed and should
increase if transaxle was allowed to cool. If
correct change in resistance occurs, repeat
OBD test.
• Is the resistance within range?
Yes Go to next step
No Replace solenoid body component.
Record and erase DTCs.
Repeat OBD test.
BE5
CHECK TFT SENSOR FOR SHORT TO
GROUND
• Check for continuity between -B A T (engine
ground) and appropriate jack (-T F T and +TFT)
appropriate wire with ohmmeter or other low
current tester (less than 200 milliamps).
• Connection should show infinite resistance (no
continuity).
• Is there continuity?
Yes Replace solenoid body component.
Repeat OBD test.
No Replace PCM.
Erase DTCs and perform drive cycle test.
Rerun OBD Tests.
If DTC are present and overtemp condition existed
determine.
If fluid is burnt, teardown unit and repair as required.
Rerun OBD test.
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