Code 1765 have a bunch of codes...0440, 0420, 0441, 0446 and 1765,....had a transmission guy look at transmission to check 1765 code which is a solenoid said nothing seems wrong with it. Was told by toyota to get a whole new transmission $$...Was told by Toyota to get a vacuum charcoal canister....Was told by a mechanic to get the two solenoids fixed only....was told to get a vsv ccv part? ..... Was told by Toyota by ECM is bad! Nobody seems to know what is wrong... van runs fine....changed the gas cap..not it. Help Please....

Wild guess the relay mentioned is bad, or connections to it are bad. Connections must be clean, even scraped to bright metal.

What you are actually looking for is the TCC Lock Up Solenoid, it is Inside the Transmission and you have to take the PAN off to gain access to it

The P0700 means Transmission Control System (MIL Request)
The P0760 means Shift Solenoid "C"
The P0871 means Transmission Fluid Pressure Sensor/Switch "C" Circuit Range/Performance.
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spare transponder key

Symptom:

P-1765 TRANSMISSION 12V SUPPLY RELAY CONTROL CIRCUIT

When Monitored and Set Condition:

P-1765 TRANSMISSION 12V SUPPLY RELAY CONTROL CIRCUIT

When Monitored: Continuously with the key on.

Set Condition: This code is set if the voltage detected on the Transmission Relay Control

Circuit at the PCM is different than the expected voltage for 3 seconds.

POSSIBLE CAUSES

NO POSSIBLE CAUSES REMAINING

GENERATOR SOURCE CIRCUIT OPEN

TRANSMISSION CONTROL RELAY DEFECTIVE

TRANSMISSION CONTROL RELAY WIR INTERMITTENT DEF

TRANSMISSION CONTROL RELAY WIRING OBSERVABLE DEF

TRANSMISSION RELAY CONTROL CIRCUIT OPEN

TRANSMISSION RELAY CONTROL CKT SHORTED TO GROUND
POWERTRAIN CONTROL MODULE DEFECTIVE

P 1765 indicates trans 12 volt supply relay CTRL circuit has a problem. Code073 indicates "ambient temperature sensor reads high.

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Check the charging system for PO622. the others please clear codes and see if they come back in.

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danbalue, a code P1765 means Transmission 12V Supply Relay Control Conditions and P1494 means EVAP LDP Pressure Switch Fault Conditions.

I found info on the following codes:
P0443 - http://www.obd-codes.com/p0443
P1494 - http://www.check-engine-light.com/dodge

Good luck.

A transaxle, in the automotive field, is a major mechanical component which combines the functionality of the transmission, the differential and associated components of the driven axle into one integrated assembly. Transaxles are near universal in all automobile configurations that have the engine placed at the same end of the car as the driven wheels: the front-engine, front-wheel drive layout, rear-engine, rear-wheel drive layout and rear mid-engine, rear-wheel drive layout arrangements.

i recommend that you check the transmission fluid level in accordance with the instructions in the owners manual

look in the glove box there will be a white decal with a bunch of codes see if g80 is on there this is locking diff code