Inspection of Electronic Control Components

INSPECTION OF ELECTRONIC CONTROL COMPONENTS

1. INSPECT VOLTAGE OF TCCS ECU CONNECTOR.

a. Turn on the ignition switch.















b. Measure the voltage at each terminal.

2. INSPECT SOLENOIDS.
a. Disconnect the connector from the TCCS ECT.






b. Measure the resistance between S1 , S2 , SL and ground.

Resistance: 11-15 ohms.

c. Apply battery voltage to each terminal. Check that an operation noise can be heard from the solenoid.

3. CHECK SOLENOID SEALS.
If there is foreign material in the solenoid valve, there will be no fluid control even with solenoid operation.






a. Check No. 1 and No. 2 solenoid valves.
- Applying 5 kg/cm2 (71 psi, 490 kPa) of compressed air, check that the solenoid valves open do not leak the air.
- When supply battery voltage to the solenoids, check that the solenoid valves open.






b. Check the lock-up solenoid valve.
- Applying 5 kg-cm2 (71 psi, 490 kPa) of compressed air, check that the solenoid valve opens.
- When supply battery voltage to the solenoid, check that the solenoid valve does not leak the air.

4. INSPECT NEUTRAL START SWITCH.










Inspect that there is continuity between terminal LL-C, 2L- C, NL-C and RL-C.

5. INSPECT THROTTLE POSITION SENSOR.










Using an ohmmeter, check the resistance between each terminal.

6. INSPECT SPEED SENSOR IN ATM.
a. Jack up a front wheel on one side.






b. Connect an ohmmeter between the terminals.
c. Spin the wheel and check that the meter needle deflects from 0 to infinity ohms.


7. INSPECT PATTERN SELECTION SWITCH.










Inspect that there is continuity between 5 and each terminal.

NOTE: As there are diodes inside, be careful of the tester probe polarity.

8. INSPECT O/D MAIN SWITCH.










Inspect that there is continuity between terminals 1 and 3.