Intelligent Key Not Detected/Engine Will Not Start (ITB13-052E)
Publication date: 2024-05-20Reference number: ITB13-052E
Supersedes refnos: ITB13-052, ITB13-052A, ITB13-052B, ITB13-052C, ITB13-052D
INTELLIGENT KEY NOT DETECTED/ENGINE WILL NOT START
TECHNICAL SERVICE BULLETIN
| INFINITI: | All Models |
| CLASSIFICATION: | KS13-051E |
| APPLIED VEHICLES: | All Infiniti vehicles |
APPLIED VEHICLES
All Infiniti vehicles equipped with Intelligent Key except 2022-2024 QX60 (L51)
SERVICE INFORMATION
Intelligent Key systems on the APPLIED VEHICLES use two (2) different Radio Frequencies (RF) that are similar to other wireless devices: 315 MHz and 433 MHz.
In the event another wireless device (e.g., aftermarket alarm system) is transmitting at the same time as an Intelligent Key, it can interfere with the Intelligent Key signals being received by the BCM.
If there is interference with Intelligent Key signals, the following symptoms may occur:
- The Intelligent Key is not detected, causing:
- The engine to not start (no response when the Stop/Start button is pressed)
- "I-Key System Error displayed in the instrument cluster
- "No I-Key Detected" displayed in the instrument cluster
- Intermittent operation of the buttons on the remote (Key FOB)
- Intermittent operation of the door request switches
The above symptoms are usually intermittent and can be difficult to diagnose.
If a vehicle has experienced the above symptoms, or a client has reported the above symptoms, refer to Supplemental Diagnosis/Information below.
HINT:
- The diagnostic items listed below should be checked before replacing any parts or performing any repairs.
- Refer to the appropriate Electronic Service Manual (ESM) for complete Intelligent Key system diagnosis and repair information.
Supplemental Diagnosis/Information
- Intelligent Key fob battery check:
- Use Signal Tech II IKEY Battery Test
to confirm the battery state of charge.
- If the vehicle is not supported by Signal Tech II, refer to appropriate ESM, section Door & Lock for proper battery voltage testing procedure.
- Use Signal Tech II IKEY Battery Test
to confirm the battery state of charge.
- Location of Intelligent Key:
- An Intelligent Key should not be stored where the RF signal can be obstructed by nearby metal objects. This includes purses/back packs with RFID blocking material, which could prevent proper Intelligent Key operation by obstructing the RF signal.
- Interference from other personal devices:
- Confirm the Intelligent Key is not placed in close proximity to phones, other Intelligent Keys, highway PASS Card, USB charger, Personal Computer (PC) charger, etc. that may be transmitting similar RF signals.
- Technician should remove all devices from vehicle while diagnosing/duplicating the clients issue.
- If none of the above are causing symptoms, check the following:
- Inspect the vehicle for the presence of an aftermarket alarm system or radar detector.
HINT: RF signals coming from the vehicle surroundings can interfere with the Intelligent Key signals (e.g. radar detectors or aftermarket alarm systems in other vehicles, or RF signals from surrounding buildings).
- Inspect the vehicle for the presence of an aftermarket alarm system or radar detector.
AMENDMENT HISTORY
| PUBLISHED DATE | REFERENCE | DESCRIPTION |
|---|---|---|
| December 11, 2013 | ITB13-052 | Original bulletin published |
| November 29, 2016 | ITB13-052A | APPLIED VEHICLES updated |
| March 26, 2018 | ITB13-052B | APPLIED VEHICLES updated |
| March 12, 2021 | ITB13-052C | Classification Number updated |
| February 22, 2022 | ITB13-052D | APPLIED VEHICLES updated |
| May 20, 2024 | ITB13-052E | APPLIED VEHICLES updated and "NOTE" references changed to "HINT" |