Diesel Data: Automotive Repair

General Information





Immobilizer
P1698 Immobilizer-Invalid TP (TP has different PIN) - General Information

Component Location





General Description

Transponder is located near the Key knob and communicates while ignition ON translates encrypted PIN data back and forth.
Reference)
1. Transponder does not need a battery, only receives energy from the vehicle.
2. Transponder is all in one with the Key. Therefore, transponder cannot be removed or replaced and is semi-permanent unless damaged by induced shock.

DTC Description

If ICU detects invalid transponder data, the DTC will set.

DTC Detecting Condition





Diagnostic Circuit Diagram










Signal Waveform & Data




Fig.1) A normal signal waveform of antenna and immobilizer communication when IG key(TP : Transponder) is OFF to ON.