Chrysler Repair: 01 Minivan: code 1768, grand caravan sport, infinite ohms

Question
Hi Roland
I have code p0700 and p1768
on 2001 grand caravan sport , engine 3.3( P R N D 3 L ,They are all have square ring when start engine) Please show me how to fix...
Thank you

Answer
Hi Kai,
The 1768 code means that the transmission control relay is stuck closed or the circuit that closes it is shorted such as to close it. You will find the relay in the power box in the engine compartment, 2nd from the front on the outboard edge of the box. You could try substituting one of the other relays that is not essential and has the same part number for that relay and see if the symptoms disappear. If not, then check between the pins 30 and 87 to verify that they are continous for current (0 ohms) as it sits. If you find it to be open (infinite ohms) then you will need to check over the wiring to find the short circuit. The 0700 code just corroborates that there is some sort of a transmission problem.
Roland
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