I have code P0765 UD circuit error

Tiny
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  • MEMBER
  • 1998 DODGE INTREPID
  • 160,000 MILES
I have code p0765 UD circuit error. What am I looking to fix problem. Transmission is not shifting
Sunday, November 25th, 2012 AT 2:17 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
NOTE: Small� transmission� in line� harness� connector� is� 8 way� (8 pin)� on� 1997� models� and� 10 way� (10 pin)� on� 1998� models.

1. Turn� ignition� off.� Disconnect� TCM� harness� connector.� Measure� resistance� between� ground� and� UD� solenoid� control� circuit� at� TCM� harness� connector.� If� resistance� is� less� than� 5� ohms, � go� to� step� 6).� If� resistance
is� not� as� specified, � go� to� next� step.
2. Disconnect� transmission� control� relay.� Measure� resistance� between� transmission� control� relay� output� circuit� at� relay� connector� and� UD� solenoid� control� circuit� at� TCM� harness� connector.� If� resistance� is� 1 3� ohms,
go� to� next� step.� If� resistance� is� not� as� specified, � go� to� step� 5).
3. Measure� resistance� between� chassis� ground� and� terminal� No.� 57� (ground� circuit)� at� TCM� harness� connector.� If� resistance� is� less� than� 5� ohms, � go� to� next� step.� If� resistance� is� not� as� specified, � repair� open� in� ground
circuit� to� TCM.
4. Measure� resistance� between� chassis� ground� and� terminal� No.� 53� (ground� circuit)� at� TCM� harness� connector.� If� resistance� is� less� than� 5� ohms, � replace� TCM.� If� resistance� is� not� as� specified, � repair� open� in� ground
circuit� to� TCM.
5. If� resistance� is� less� than� one� ohm, � go� to� step� 8).� If� resistance� is� not� as� specified, � go� to� step� 10).
6. Disconnect� small� transmission� in line� harness� connector.� Measure� resistance� between� ground� and� UD� solenoid� control� circuit� at� TCM� harness� connector.� If� resistance� is� less� than� 5� ohms, � repair� UD� solenoid
control� circuit� for� a� short� to� ground� between� small� transmission� in line� harness� connector� and� TCM.� If� resistance� is� not� as� specified, � go� to� next� step.
7. Disconnect� solenoid� pack� harness� connector.� Measure� resistance� between� ground� and� UD� solenoid� control� circuit� at� transmission� side� of� small� transmission� in line� harness� connector.� If� resistance� is� less� than� 5
ohms, � repair� UD� solenoid� control� circuit� for� a� short� to� ground� between� small� transmission� in line� harness� connector� and� solenoid� pack.� If� resistance� is� not� as� specified, � replace� solenoid� pack.
8. Disconnect� small� transmission� in line� harness� connector.� Measure� resistance� between� transmission� control� relay� output� circuit� and� UD� solenoid� control� circuit� at� TCM� harness� connector.� If� resistance� is� less� than
one� ohm, � repair� transmission� control� relay� output� circuit� for� a� short� to� UD� solenoid� control� circuit� between� small� transmission� in line� harness� connector� and� TCM.� If� resistance� is� not� as� specified, � go� to� next� step.
9. Disconnect� solenoid� pack� harness� connector.� Measure� resistance� between� UD� solenoid� control� circuit� and� transmission� control� relay� output� circuit� at� solenoid� pack� harness� connector.� If� resistance� is� less� than� one
ohm, � repair� transmission� control� relay� output� circuit� for� a� short� to� UD� solenoid� control� circuit� between� small� transmission� in line� harness� connector� and� solenoid� pack.� If� resistance� is� not� as� specified, � replace
solenoid� pack.
10. Disconnect� small� transmission� in line� harness� connector.� Measure� resistance� of� UD� solenoid� control� circuit� between� TCM� harness� connector� and� harness� side� of� small� transmission� in line� harness� connector.� If
resistance� is� less� than� 5� ohms, � go� to� next� step.� If� resistance� is� not� as� specified, � repair� open� in� UD� solenoid� control� circuit� between� small� transmission� in line� harness� connector� and� TCM.
11. Measure� resistance� of� transmission� control� relay� output� circuit� between� small� transmission� in line� harness� connector� and� transmission� control� relay� connector.� If� resistance� is� less� than� 5� ohms, � go� to� next� step.� If
resistance� is� not� as� specified, � repair� open� in� transmission� control� relay� output� circuit� between� small� transmission� in line� harness� connector� and� transmission� control� relay.
12. Disconnect� solenoid� pack� harness� connector.� Measure� resistance� of� UD� solenoid� control� circuit� between� transmission� side� of� small� transmission� in line� harness� connector� and� solenoid� pack� harness� connector.� If
resistance�

13. Measure� resistance� of� transmission� control� relay� output� circuit� between� transmission� side� of� small� transmission� in line� harness� connector� and� solenoid� pack� harness� connector.� If� resistance� is� less� than� 5� ohms,

replace� solenoid� pack.� If� resistance� is� not� as� specified, � repair� open� in� transmission� control� relay� output� circuit� between� small� transmission� in line� harness� connector� and� solenoid� pack.
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Sunday, November 25th, 2012 AT 2:38 PM

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