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K
ON-BOARD DIAGNOSIS SYSTEM
Diagnostic trouble code
NO. PO71 2, PO71 3, PI 711, PI
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Symptom
Excessive shift shock, TFT out of range
PO713 is set if temperature exceeds set scale
-40°F
PO712 is set if temperature exceeds set scale 315°F
PI711 is set if signal went high or low during self-test
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P1783 is set if temperature exceeds 270°F
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INSPECTION
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4
ACTION
-pi
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1
1 Check to make sure transm~ss~on harness connector
IS
fully
Yes
Rernaln ~n PIDIDATA MONITOR AND RECORD
i
seated, terrnlnals are fully enqaqed In connector and In qood
.
'
Go to step 2
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condltlon before proceeding
7
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Uslng NGS Tester, access TFT and TFTV PlDs
No
Repeat procedure If veh~cle st111 does not enter
Does vehlcle enter PID screen?
PIDIDATA MONITOR AND RECORD, go to page
FT-131 In thls manual
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1
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Whlle In PID mode, wlggle all connectors to the transmlsslon
Yes
Repalr open or short ~n vehlcle harness or
Monltor the TFT sensor PlDs for changes
connector
Does the TFT sensor state change?
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No
Go to step 3
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Whlle monltorlng the TFT PIDs, perform the following test
If the transrnlsslon
IS
cold, warm transmlsslon up If transmlss~on
IS
warm, allow transmlsslon to cool down
Do TFT PlDs Increase as transmlsslon
IS
warmed up or decrease
as transmlsslon
IS
cooled or do PlDs drop In and out of range7
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1
~ e 6 Z t r a n s m l s s l o n fluid pan. Vlsuallv Inspect all wires and
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Yes
If TFT PlDs Increase as transmlsslon
IS
warmed
up or decrease as transrnlsslon
IS
cooled, clear
all DTCs and rerun self-tests If concern
IS
st111
present, refer to Qulck Dlagnosls Chart for further
lnformatlon
If TFT PlDs drop In and out of range, Inspect
lnternallexternal harness, sensor or connector for
lntermlttent concerns
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No
Go to step
4
,
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Yes
Go to steD 5
.
.
connectors for damage
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Connect posltlve lead of voltmeter to TFT+ at sensor terminal and
N ,
check for open or short clrcult In vehicle harness,
negatlve lead to a good ground
Internal harness or PCM concern
Is voltage present?
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5
~ ~ s c o n i e c t
v e h z e harness from TransrnlsGn
Yes
Refer to Qulck Dlagnosls Chart to further d~agnose
Connect ohmmeter across TFT
+
and TFT
-
terrnlnals at connector
overheating concerns
Record reslstance See TFT speclflcatlons chart at the end of thls
t e s t
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No
Replace Internal harness (sensor
IS
part of harness)
Is the reslstance In range?
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Troubleshooting
