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C122D-ACTIVE BRAKE BOOSTER CONTROL CIRCUIT (CONTINUED) For the Anti-Lock Brake System circuit diagram. (Refer to 5 - BRAKES - SCHEMATICS AND DIAGRAMS) For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE (B131) ACTIVE BRAKE BOOSTER SOLENOID (+) CIRCUIT AND (B132) ACTIVE BRAKE BOOSTER SOLENOID (B132) ACTIVE BRAKE BOOSTER SOLENOID (-) CIRCUIT SHORTED TO GROUND, VOLTAGE, OR OPEN BRAKE TRAVEL SENSOR ANTI-LOCK BRAKE MODULE Diagnostic Test 1. CHECK FOR A DTC C122D-ACTIVE BRAKE BOOSTER CONTROL CIRCUIT NOTE: This DTC must be active for the results of this test to be valid. With the scan tool, read and record DTCs. With the scan tool, read and record Freeze Fame information. With the scan tool, erase DTCs. Cycle the ignition switch from off to on. With the scan tool, read and record DTCs Does the scan tool display: C122D-ACTIVE BRAKE BOOSTER CONTROL CIRCUIT? Yes >> Go To 2 No >> Refer to the INTERMITTENT CONDITION diagnostic procedure. Perform ABS VERIFICATION TEST - VER 1. 2. CHECK THE WIRING HARNESS, TERMINALS, AND CONNECTORS Visually inspect the related wiring harness. Look for any bruised, chafed, pierced, or partially broken wires. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals. Were any problems found? Yes >> Repair as necessary. Perform ABS VERIFICATION TEST - VER 1. No >> Go To 3 5 - 306 BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS WK |