TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
p.094
SR/Steering95 / 96
p.096
Power Steering ECU
INSPECTION OF ECU — MK3 Supra Steering, page 95
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STEERING — Power Steering (Progressive Power Steering) SR-95 Power Steering ECU INSPECTION OF ECU 1. JACK UP VEHICLE AND SUPPORT IT ON STANDS 2. REMOVE GLOVE BOX HINT: Do not disconnect the ECU connector. 3. START ENGINE 4. MEASURE VOLTAGE OF ECU (a) Using a voltmeter, measure the voltage between ECU terminals SOL ⊖ and GND while the engine is idling. Standard voltage: 0.32 — 0.44 V (b) Place the transmission in gear and while running at about 50 km/h (31 mph), measure the voltage be- tween ECU terminals SOL ⊖ and GND. Standard voltage: Voltage measured in (a) above, minus 0.09 — 0.23 V If no voltage, try another ECU. 5. INSTALL GLOVE BOX 6. LOWER VEHICLE