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C1027–LEFT REAR WHEEL SPEED SENSOR INPUT SIGNAL ERRATIC PERFORMANCE (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 LEFT REAR WSS LOOSE - B3,B4 CIRCUITS/CONNECTOR/TERMINAL DAMAGE LEFT REAR TONE WHEEL DAMAGE LEFT REAR WSS AIR GAP FAULT LEFT REAR WHEEL BEARING DAMAGE LEFT REAR BRAKE HARDWARE DAMAGE LEFT REAR WSS - INTERNAL FAULT ANTI-LOCK BRAKE MODULE - INTERNAL FAULT Diagnostic Test 1. NOTE: This DTC must be active for the results of this test to be valid. CHECK FOR DTC C1027–LEFT REAR Turn the ignition on. With the scan tool, record and erase DTC’s. Cycle the ignition switch from off to on. With the scan tool, read DTC’s NOTE: The Anti-Lock Brake Module must sense ALL 4 wheels at Does the scan tool display: C1027–LEFT REAR WHEEL SPEED Yes >> Refer to C1020–Left Rear Wheel Speed Sensor Circuit for the related symptom(s). Perform ABS VERIFICATION TEST - VER 1. No >> Go To 2 HB BRAKES - ABS ELECTRICAL DIAGNOSTICS 5 - 151 |