Disconnect the throttle sensor setting adapter [A] from the connector of the main harness side.
Special Tool - Throttle Sensor Setting Adapter: 57001 -1538
Connect the setting adapter [B] to the sensor connector only.
Connect a digital meter [A] to the setting adapter [B].
Main Throttle Sensor [C]

Main Throttle Sensor Resistance
Connections to Adapter:
W (sensor BL) lead ← → BK (sensor BR/BK) lead
Standard: 4
6 kΩ

If the reading is out of the standard, replace the throttle body assy.
If the reading is within the standard, check the output voltage (see Main Throttle Sensor Output Voltage Inspection).
Main Throttle Sensor Input Voltage Inspection
Main Throttle Sensor Output Voltage InspectionBrake Fluid Change
NOTE
The procedure to change the front brake fluid is as follows.
Changing the rear brake fluid is the same as for
the front brake.
Level the brake fluid reservoir.
Remove:
Screw [A]
Stopper [B]
Front Brake Reservoir Cap [C]
Diaphragm Plate
Diaphragm
Remove the rubb ...
Coupling Bearing Installation
Replace the bearing with a new one.
Press in the bearing [A] until it is bottomed.
Special Tool - Bearing Driver Set [B]: 57001-1129
Pack the bearing with high-temperature grease.
Replace the circlip with a new one.
Special Tool - Inside Circlip Pliers: 57001-143
Replace the grease se ...
Diode Circuit Inspection
Remove the relay box (see Relay Box Removal).
Check conductivity of the following pairs of terminals (see
Relay Box Internal Circuit in this section).
Diode Circuit Inspection
The resistance should be low in one direction and more
than 10 times as much in the other direction. If any dio ...