Diesel Data: Automotive Repair

General Information





Immobilizer
P1693 Immobilizer-Transponder Error - 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 transponder is not in the place, DTC will set.

CAUTION:
If 2 transponders are piled together and approach at the antenna coil, DTC is 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.