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3. CHECK (B4) LEFT REAR WSS 12 VOLT SUPPLY CIRCUIT VOLTAGE Disconnect the Left Rear WSS harness connector. Turn the ignition on. Measure the voltage of the (B4) Left Rear WSS 12 Volt Supply circuit. Is the voltage above 10.0 volts? Yes >> Go To 6 No >> Go To 4 4. CHECK (B4) LEFT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Left Rear WSS harness connector. Disconnect the Anti-Lock Brake Module harness connector. Using a 12-volt test light connected to 12-volts, probe the (B4) Left Rear Does the test light illuminate brightly? Yes >> Repair the (B4) Left Rear WSS Supply circuit for a short to ground. Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - No >> Go To 5 5. CHECK (B4) LEFT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR AN OPEN Connect a jumper wire between ground and the (B4) Left Rear WSS Using a 12-volt test light connected to 12-volts, probe the (B4) Left Rear Does the test light illuminate brightly? Yes >> Replace the Anti-Lock Brakes Module in accordance with the Service Information. Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - No >> Repair the (B4) Left Rear WSS Supply circuit for an open. Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - PM BRAKES - ABS ELECTRICAL DIAGNOSTICS 5 - 165 |