Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit description

When driving uphill under cruise control, in order to reduce the number of shifting due to onoff overdrive operation and to provide smooth driving, when down shifting in the electronically controlled transmission occurs, a signal to prevent upshift until the end of the uphill slope is sent from the cruise control ecu assy to the electronically controlled transmission.

Terminal ect of the cruise control ecu assy detects the shift change signal (output to electronically controlled transmission no.2 Solenoid) from the ecm.

If the vehicle slows down, also when terminal ect of the cruise control ecu assy receives down shifting signal, it sends a signal from terminal od to ecm to cut overdrive until the end of the uphill slope, and the number of gear shifts are reduced and gear shift points in the electronically controlled transmission are changed.

Wiring diagram

Inspection procedure

Electronically controlled transmission communication circuit
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Inspection procedure
1 Check operation(overdrive) Drive the vehicle after the engine warms up.  check that overdrive on e off occurs by an operation of the o/d switch onoff. 2 Inspect terminal voltag ...

Other materials:

Automatic transaxle fluid (atm)
Onvehicle inspection 1. Check the fluid level Hint: drive the vehicle so that the engine and transaxle are at normal operating temperature. Fluid temperature: 70 80 c (158 176 f)  park the vehicle on a level surface and set the parking brake.  with the engine idling ...

Replacement
Hint: components: 1. Precaution 2. Disconnect battery negative terminal 3. Remove instrument panel subassy lower Remove the screw from the glove compartment door stopper subassy.  pull the instrument panel subassy lower to remove it. 4. Separate passenger airbag connecto ...

Adjustment
1. Put vehicle these conditions  tire inflation pressure is the specified value .  start the engine. 2. Adjust fog light aim The fog light aim can be adjusting by moving the aiming screw in the vertical direction. Hint: the optical aim moves upward when turning a scr ...

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