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P0571-BRAKE SWITCH 1 PERFORMANCE (CONTINUED) 2. (B29) BRAKE SWITCH NO.1 SIGNAL SHORTED TO GROUND Turn the ignition off. Disconnect the Stop Lamp Switch harness connector. Disconnect the C3 PCM harness connector. Measure the resistance between ground and the (B29) Brake Switch Is the resistance below 100 ohms? Yes >> Repair the short to ground in the (B29) Brake Switch No.1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 3 3. (V32) BRAKE SWITCH NO.2 SIGNAL CIRCUIT OPEN CAUTION: Do not probe the PCM harness connectors. Probing Is the resistance below 5.0 ohms? Yes >> Go To 4 No >> Repair the open in the (V32) Brake Switch No.2 Signal cir- cuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer 9 - 594 ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L DR/DH |