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P0594-SPEED CONTROL SERVO POWER RELAY CIRCUIT (CONTINUED) 2. (V32) S/C SUPPLY CIRCUIT Turn the ignition off. Disconnect the Stop Lamp Switch harness connector. Ignition on, engine not running. (It may be necessary to start the Using a 12-volt test light connected to ground, probe the (V32) S/C Does the test light illuminate brightly? Yes >> Go To 3 No >> Go To 7 3. STOP LAMP SWITCH Disconnect and remove the Stop Lamp Switch. Measure the resistance across the (V32) S/C Supply circuit terminal and the (V30) S/C Brake Switch Output circuit Push the Plunger of the Switch in and let it out. Does the resistance change from below 5.0 ohms to an open circuit? Yes >> Go To 4 No >> Replace the Stop Lamp Switch. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 4. (V30) S/C BRAKE SWITCH OUTPUT Turn the ignition off. Connect the Stop Lamp Switch harness connector and install the Disconnect the Speed Control Servo harness connector. Ignition on, engine not running. NOTE: It is necessary to PRESS and HOLD the Speed Control Does the test light illuminate brightly? Yes >> Replace the S/C Servo. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 5 9 - 692 ENGINE ELECTRICAL DIAGNOSTICS WK |