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C122C-ACTIVE BRAKE BOOSTER CONTROL CIRCUIT SUPPLY VOLTAGE (CONTINUED) 3. CHECK THE RESISTANCE OF THE ACTIVE BRAKE BOOSTER SOLENOID Turn the ignition off. Disconnect the Brake Travel Sensor harness connector. Measure the resistance between the (B131) Active Brake Booster Is the resistance between 1 to 2 ohms? Yes >> Go To 4 No >> Replace the Brake Travel Sensor in accordance with the Service information. Perform ABS VERIFICATION TEST - VER 1. 4. CHECK THE VOLTAGE ON THE (B131) ACTIVE BRAKE BOOSTER SOLENOID (+) CIRCUIT Turn the ignition on. Measure the voltage of the (B131) Active Brake Booster Solenoid (+) Is the voltage above 10 volts? Yes >> Go To 9 No >> Go To 5 5. CHECK FOR A SHORT BETWEEN THE (B131) ACTIVE BRAKE BOOSTER SOLENOID (+) AND (B984) Turn the ignition off. Disconnect the Anti-Lock Brake Module harness connector. Measure the resistance between the (B131) Active Brake Booster Is the resistance below 150 ohms? Yes >> Repair the (B131) Active Brake Booster Solenoid (+) cir- cuit for a short to the (B984) Brake Pressure Sensor Perform ABS VERIFICATION TEST - VER 1. No >> Go To 6 5 - 302 BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS WK |