TSRM/MK3 Supra/Repair Manual
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p.040

FA/Front Axle & Suspension, page 41

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p.042
Front Axle & Suspension — MK3 Supra Front Axle & Suspension, page 41
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Page text (OCR transcript)
Speed Sensor

INSPECT SPEED SENSOR IN COMBINATION METER
(a) Remove the combination meter.
(b) Check that there is continuity between terminals SPD (+) and SPD (-) four times per each revolution of the shaft.

Throttle Position Sensor

INSPECT THROTTLE POSITION SENSOR
Using an ohmmeter, check the resistance between each terminals.

Terminal | Throttle valve condition | Resistance (kΩ)
IDL - E2 | Fully closed | 0
IDL - E2 | Open | Infinity
Vcc - E2 | | 3-7
VTA - E2 | Fully closed | 0.2-0.8
VTA - E2 | Fully open | 3.3-10

Brake Light Switch

INSPECT BRAKE SIGNAL
Check that the brake light comes on when brake pedal is depressed.