DTC B2719, UTD - Trunk Tamper Switch Fault: Testing
- Turn ignition switch to OFF position. Disconnect PZM connector. Using DVOM, check resistance between PZM 24-pin connector C1 terminal A3 (Light Blue wire) and ground. If resistance is greater than 5 ohms, replace PZM. If resistance is 5 ohms or less, go to next step.
- Disconnect trunk tamper switch connector. Using DVOM, check resistance between trunk tamper switch connector terminal "A" and ground. If resistance is greater than 5 ohms, replace trunk tamper switch. If resistance is 5 ohms or less, repair short to ground in Light Blue wire between trunk tamper switch and PZM.