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DTC B2719: UTD - Trunk Tamper Switch Fault: Testing

  1. Perform BODY CONTROL MODULE DIAGNOSTIC SYSTEM CHECK  under SYSTEM TESTS. Go to next step.
  2. Turn ignition switch to OFF position. Disconnect PZM connectors. Using DVOM, measure resistance between PZM connector C2, terminal A7 (Light Blue wire) and ground. See WIRING DIAGRAMS  . If resistance is 0-5 ohms, go to step  4 . If resistance is other than 0-5 ohms, go to next step.
  3. Replace PZM. See PLATFORM ZONE MODULE (PZM)  under REMOVAL & INSTALLATION. After repairs, go to step  7 .
  4. Disconnect trunk tamper switch Black 3-pin connector. Using DVOM, measure resistance between PZM connector C2, terminal A7 (Light Blue wire) and ground. If resistance is 0-5 ohms, go to next step. If resistance is other than 0-5 ohms, go to step  6 .
  5. Repair short to ground in Light Blue wire between trunk tamper switch and PZM. After repairs, go to step  7 .
  6. Replace trunk tamper switch. After repairs, go to next step.
  7. Turn ignition off. Reconnect all disconnected components and connectors. Turn ignition on. Use scan tool to clear DTCs. Go to BODY CONTROL MODULE DIAGNOSTIC SYSTEM CHECK  under SYSTEM TESTS.
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