The Key-In Reminder Sounds In Vehicle OFF Mode When Door Is Open

1. 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.

2. Shorted wire check (PCU KEY 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): disconnected
   Test point 1	Keyless access/TPMS control unit connector A (32P) No. 2
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair a short to ground in the wire.

   NO 

   The PCU KEY wire is not shorted. Go to step 3.

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): disconnected
   Test point 1	Under-dash fuse/relay box connector P (24P) No. 22 - Refer to: MICU Input Test (2015-17) or MICU Input Test (2018-19)
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   Go to step 4.

   NO 

   Faulty MICU; replace the under-dash fuse/relay box .

4. Keyless access/TPMS control unit PCU KEY 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
   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 .

5. 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): disconnected
   Test point 1	Keyless access/TPMS control unit connector B (36P) No. 10
   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 .

   NO 

   Go to step 6.

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.

   Is the engine start/stop switch OK?

   YES 

   Repair a short to power in the wire.

   NO 

   Replace the engine start/stop switch .

Also check for

• MICU
• Keyless access/TPMS control unit
• Engine start/stop switch
• Harness/connections