Inspection of Electronic Control Components

1. VOLTMETER CONNECTION.



- Connect the positive (+) probe of the voltmeter to terminal TT and the negative (-) probe to terminal E1 of DLC2.

HINT: If a voltmeter with small internal resistance is used, the correct voltage will not be indicated, so use a voltmeter with an internal resistance of at least 10 K Ohm/Volt.

2. TURN IGNITION SWITCH TO ON.
DO NOT START THE ENGINE.

3. CHECK THROTTLE POSITION SENSOR SIGNAL.
- From the fully closed position, gradually depress the accelerator pedal.



- Check that the voltage changes from approx. 0.0 volts to approx. 8.0 volts.

4. CHECK BRAKE SIGNAL (LOCK-UP CUT SIGNAL).
- Open the throttle valve fully to apply approx. 8.0 volts to terminal TT.
- In this condition, check terminal TT voltage when the brake pedal is depressed and released.

0.0 volts (When brake pedal is depressed)
8.0 volts (When brake pedal is released)

5. START ENGINE.
6. CHECK SHIFT POSITION SIGNAL.
(VEHICLE SPEED ABOVE 9 KM/H, 6 MPH)
- Check up-shifting together with terminal TT voltage.
HINT: Check for light shocks from up-shifting and for changes in the tachometer.




- If terminal TT output voltage check cannot be done, do the "TT Terminal Circuit" check under the Non-Trouble Code Charts.
Component Tests and General Diagnostics