Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit description

While driving uphill with cruise control activated, in order to minimize gear shifting and provide smooth cruising overdrive may be prohibited temporarily under some conditions.

The cruise control ecu sends o/d cut signals to the ecm as necessary and the ecm cancels overdrive shifting until these signals are discontinued.

Wiring diagram

Inspection procedure

O/d cancel signal circuit
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Inspection procedure
1 Inspect terminal voltage(od body ground) Disconnect the cruise control ecu connector.  turn the ignition switch to the on position.  measure the voltage between terminal od o ...

Other materials:

Adjustment
1. Check and adjust brake pedal height Inspect brake pedal height. Pedal height from asphalt sheet: m/t: 134.9 144.9 Mm (5.311 5.703 In.) A/t: 136.0 146.0 Mm (5.353 5.747 In.)  Disconnect the connector from the stop lamp switch.  Remove the stop lamp switch. ...

Circuit description
The intake air temperature (iat) sensor, mounted on the mass air flow (maf) sensor, monitors the intake air temperature. The iat sensor has a thermistor that varies its resistance depending on the temperature of the intake air. When the air temperature is low, the resistance in the thermisto ...

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 voltage(od) Remove the cruise control ecu assy with the connector still connected.  turn ...

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