The Key-In Reminder Sounds In Vehicle Off Mode When Door Is Open
- PCU DTC check
-1. Check for PCU DTCs with the HDS.
DTC Description DTC Are there any DTCs?
YES
Troubleshoot the PCU DTCs.
NO
Go to step 2.
- Shorted wire check (KEY SW line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connectors.
Keyless access/TPMS control unit connector A (32P)
Under-dash fuse/relay box connector P (24P)- 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Keyless access/TPMS control unit connector A (32P): disconnected
Under-dash fuse/relay box connector P (24P): disconnectedTest point 1 Keyless access/TPMS control unit connector A (32P) No. 2 - Refer to:
Keyless Access/TPMS Control Unit Connector for Inputs and Outputs (2016 2017 2018) or
Keyless Access/TPMS Control Unit Connector for Inputs and Outputs (2019 2020 2021) .Test point 2 Body ground Is there continuity?
YES
Repair a short to ground in the wire.
NO
The KEY SW wire is not shorted. Go to step 3.
- Determine possible failure area (MICU, others)
-1. Reconnect under-dash fuse/relay box connector P (24P).
- 2. Measure the voltage between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Keyless access/TPMS control unit connector A (32P): disconnectedTest point 1 Under-dash fuse/relay box connector P (24P) No. 22 Test point 2 Body ground Is there battery voltage?
YES
Go to step 4.
NO
Faulty MICU; replace the Under-Dash Fuse/Relay Box - Removal and Installation .
- Keyless access/TPMS control unit KEY SW line check
-1. Reconnect keyless access/TPMS control unit connector A (32P).
- 2. Turn the vehicle to the ON mode.
- 3. Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, and enter FUNCTIONAL TESTS.
FUNCTIONAL TEST
Connect the voltmeter to test points 1 and 2.
Test point 1 Keyless access/TPMS control unit connector A (32P) No. 2 - Refer to:
Keyless Access/TPMS Control Unit Connector for Inputs and Outputs (2016 2017 2018) or
Keyless Access/TPMS Control Unit Connector for Inputs and Outputs (2019 2020 2021) .Test point 2 Body ground - 5. Select PCUKEYOUT with the HDS.
Does the voltage change from about 12 to 0 V?
YES
Go to step 5.
NO
Replace the Keyless Access/TPMS Control Unit - Removal and Installation .
- Keyless access/TPMS control unit SS1+ line check
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Keyless access/TPMS control unit connector B (36P) - 3. Measure the voltage between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Keyless access/TPMS control unit connector B (36P): disconnectedTest point 1 Keyless access/TPMS control unit connector B (36P) No. 10 - Refer to:
Keyless Access/TPMS Control Unit Connector for Inputs and Outputs (2016 2017 2018) or
Keyless Access/TPMS Control Unit Connector for Inputs and Outputs (2019 2020 2021) .Test point 2 Body ground Is there about 0 V?
YES
Reconnect the connectors and recheck the system. If the symptom does not go away, replace the Keyless Access/TPMS Control Unit - Removal and Installation .
NO
Go to step 6.
- Engine start/stop switch check
-1. Disconnect the following connector.
Engine start/stop switch 10P connector - 2. Do the engine start/stop switch test. Engine Start/Stop Switch Test
Is the engine start/stop switch OK?
YES
Repair a short to power in the wire.
NO
Replace the Engine Start/Stop Switch - Removal and Installation .