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For a complete wiring diagram Refer to Section 8W Theory of Operation The Tire Pressure Transponder Module is used to automatically learn the location of each wheel sensor on the • When Monitored: • Set Condition: Possible Causes INTERMITTENT TIRE PRESSURE TRANSPONDER MODULE PERFORMANCE DTC (D508) TIRE PRESSURE BUS CIRCUIT SHORT TO VOLTAGE (D508) TIRE PRESSURE BUS CIRCUIT SHORT TO GROUND (D508) TIRE PRESSURE BUS CIRCUIT OPEN OR HIGH RESISTANCE (F500) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE (Z901) GROUND CIRCUIT(S) OPEN OR HIGH RESISTANCE TIRE PRESSURE TRANSPONDER MODULE WIRELESS CONTROL MODULE (SKREEM) Diagnostic Test 1. DTC STATUS IS ACTIVE Turn the ignition on. With the scan tool, select View DTCs in the Wireless Control Module (SKREEM). Is the DTC status Active at this time? Yes >> Go to 2 No >> Go to 9 2. (D508) TIRE PRESSURE BUS CIRCUIT SHORT TO VOLTAGE Turn the ignition off. Disconnect the Tire Pressure Transponder Module harness connector. Disconnect the Sentry Key Remote Entry Module harness connector. Turn the ignition on. Measure the voltage of the (D508) Tire Pressure Bus circuit. Is there any voltage present? Yes >> Repair the (D508) Tire Pressure Bus circuit for a short to voltage. Perform TPM VERIFICATION TEST (Refer to 22 - TIRES/ No >> Go to 3 22 - 40 TIRES/WHEELS LX |