QuestionQUESTION: My 1999 Plymouth Grand Voyager has 202362 miles on it. The transmission started losing power and speed going from 60mph down to 25 -30mph. The transmission shop took a reading and got code P1739- Power up at speed. The transmission was just replaced last year (2012) is it the transmission or something else? The dealer wants 550.00 to just drop the transmission. is that too much?
ANSWER: Symptom:
P1739-POWER-UP AT SPEED
POSSIBLE CAUSES
CHECKING SYMPTOMS AND POSSIBLE CAUSES
LOW BATTERY VOLTAGE CAUSING SYMPTOM
INTERMITTENT OPEN BETWEEN TCM AND FUSE
INTERMITTENT OPEN BETWEEN TCM AND PDC
TCM 12 VOLT CIRCUIT OPEN BETWEEN TCM & FUSE
TCM 12 VOLT SUPPLY SHORT TO GROUND
TCM DAMAGED INTERNALLY
FUSED IGNITION SW OUT OPEN BTWN TCM AND FUSE
FUSED B(+) SHRT BTWN TCM AND FUSE
INTERMITTENT OPEN AT TCM GROUND CIRCUIT
INTERMITTENT CODE P1739
TCM GROUND CIRCUIT OPEN
U have an electrical issue not an internal transmission issue
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QUESTION: I took my van to a Chrysler Dealer who checked for the 12-possible causes for the stored code P1739, Power & Grounds to TCM Connector,Switch Relays in PDC, Engine & Transmission Harness. All checked out OK. They could not duplicate the condition causing the code. Now my ABS light is standing on (two-weeks now). Could all this be related electrically?
Answerno one can fix or diog an issue that is not currently happening cars are like humans u can only test so much if your not sick at the currant time will a DR be able to tell u whats wrong? not really. Take it back to them when it does happen or leave it with them until it does happen
