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:

Failsafe chart
If any of the following codes is recorded, the ecm enters the failsafe mode. Check for intermittent problems Handheld tester only: by putting the vehicles ecm in the check mode, the 1 trip detection logic is possible instead of the 2 trip detection logic, and the sensitivity to detect f ...

Bluetooth phone message function
Received messages can be forwarded from the connected Bluetooth phone, enabling checking and replying using the multimedia system. Depending on the type of Bluetooth phone connected, received messages may not be transferred to the message inbox. If the phone does not support the message func ...

Sliding roof/convertible
Service data Torque specification Engine hood/door Torque specification Exterior/interior trim Torque specification Cruise control Service data Torque specification ...

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