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HYDRAULIC BRAKE BOOSTER (HBB) DIAGNOSIS TSB Revision BASIC BRAKE SYSTEM 35A-39 STEP 7. Check the ignition switch (IG2) circuit at motor (1) Remove the motor relay A. (3) Measure the voltage between terminal 3 and ground. The voltage should measure approximately 12 volts (battery Q: Is battery positive voltage (approximately 12 volts) present? AC204329 AD MOTOR AC204552 3 2 1 5 4 1 2 3 4 5 RELAY BOX CONNECTOR AC CONNECTOR: B-53X B-53X |