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Home >> Toyota >> 2004 >> Highlander Base, 2.4 D, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 711 (Security Control System (With Intelligent Key System)) >> DTC/Circuit Diagnosis >> DTC P1614: Chain Of IMMU-Key >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1614 CHAIN OF IMMU-KEY
  • Inactive communication between NATS antenna amp. and BCM.
  • Mechanical key is malfunctioning.
  • Harness or connectors (The NATS antenna amp. circuit is open or shorted)
  • Mechanical key
  • NATS antenna amp.
  • BCM
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