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PGM-FI System
A/T Fl Data Line (cont'dl
(From page '11-93)
Check fo. an ooen or rhort in the
wires llGl, LG lines):
Measure voltage between TCM 26P
connector terfiinals No. 12 and 13
and terminals No. 25 aod 26.
-
Ropair opan or short in the
wire bgtwoen TCM and No. 15
A L T E R N A T O R S P S E N S O R
17.5 Al tu3e in th€ under-dash
fu3e/r€lay box.
-
R e p a i r o p o n i n t h o w i r e
b.twoen TCM and G101.
l s t h e r e b a n e r y v o l t a g e ?
Check to. an open o. 3hort in tha
TCM:
Substitute a known-good TCM
and recheck.
ls DTC P1660 indicated?
Substitute a known.good ECM
and rschsck. lf symptom/indica-
lion 9o€! .w.y, roplace tho origi-
nal ECM.
TCM CONNECTOR 26P {Cir2ol
LG
(BRN/
BLK}
1 2 3 , / 5 6 7 E 9 1 0 1 1
1 4 1 5 1 6 1 7
Wir6 side of lemale terminals
i
-94
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Troubleshooting
