Keyless Access System Symptom Troubleshooting - The key-in reminder does not sound

ElectronicCircuitSchematics-buttonSystemDescription-buttonKeyless Access System Description - Overview - Refer to: Keyless Access System Description - Components  or Keyless Access System Description - Control/Function  or Keyless Access System Description - System Diagram  or Keyless Access System Description - Overview  or Keyless Access System Description - Failsafe Function  Keyless Access System Description - System Diagram - Refer to: Keyless Access System Description - Components  or Keyless Access System Description - Control/Function  or Keyless Access System Description - System Diagram  or Keyless Access System Description - Overview  or Keyless Access System Description - Failsafe Function  Keyless Access System Description - Control/Function - Refer to: Keyless Access System Description - Components  or Keyless Access System Description - Control/Function  or Keyless Access System Description - System Diagram  or Keyless Access System Description - Overview  or Keyless Access System Description - Failsafe Function  Keyless Access System Description - Components - Refer to: Keyless Access System Description - Components  or Keyless Access System Description - Control/Function  or Keyless Access System Description - System Diagram  or Keyless Access System Description - Overview  or Keyless Access System Description - Failsafe Function  Keyless Access System Description - Failsafe Function - Refer to: Keyless Access System Description - Components  or Keyless Access System Description - Control/Function  or Keyless Access System Description - System Diagram  or Keyless Access System Description - Overview  or Keyless Access System Description - Failsafe Function 

The key-in reminder does not sound 

1. Open wire check (driver's door switch line)

   -1. Turn the interior light switch to DOOR position.

   -2. Open the driver's door.

   Do the individual map lights come on?

   YES 

   The driver's door switch wire is OK. Go to step 2.

   NO 

   Open or high resistance in the wire. If the wire is OK, replace the driver's door switch.

2. Determine possible failure area (gauge control module, others)

   -1. Select GAUGES from the BODY ELECTRICAL SYSTEM SELECT menu with the HDS.

   Self diagnostic function - CAN METER

   Select FUNCTIONAL TESTS from the TEST MODE menu with the HDS, and enter SELF TEST.

   Does the key-in reminder sound?

   YES 

   Go to step 3.

   NO 

   Replace the gauge control module .

3. Determine possible failure area (keyless access/TPMS control unit, others)

   -1. Connect terminals A and B with a jumper wire.

   Terminals A	Keyless access/TPMS control unit connector A (32P) No. 2 - Refer to: Keyless Access/TPMS Control Unit Connector for Inputs and Outputs (2022 2023)  or Keyless Access/TPMS Control Unit Connector for Inputs and Outputs
   Terminals B	Body ground

   Does the key-in reminder sound?

   YES 

   Replace the keyless access/TPMS control unit .

   NO 

   Go to step 4.

4. Open wire check (KEY SW line)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Remove the jumper wire from the keyless access/TPMS control unit connector A (32P).

   -3. Disconnect the following connectors.

   Under-dash fuse/relay box connector P (24P)Keyless access/TPMS control unit connector A (32P)

   -4. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) modeUnder-dash fuse/relay box connector P (24P): disconnectedKeyless access/TPMS control unit connector A (32P): disconnected
   Test point 1	Under-dash fuse/relay box connector P (24P) No. 22
   Test point 2	Keyless access/TPMS control unit connector A (32P) No. 2 - Refer to: Keyless Access/TPMS Control Unit Connector for Inputs and Outputs (2022 2023)  or Keyless Access/TPMS Control Unit Connector for Inputs and Outputs

   Is there continuity?

   YES 

   The KEY SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box - Refer to: Under-Dash Fuse/Relay Box Removal and Installation (2019) or Under-Dash Fuse/Relay Box Removal and Installation .

   NO 

   Repair an open or high resistance in the wire.