Key Reminder Buzzer Does Not Sound

DOOR LOCK: KEY REMINDER WARNING SYSTEM: Key Reminder Buzzer does not Sound

Key Reminder Buzzer does not Sound

DESCRIPTION

When the ignition switch is OFF, the key is in the ignition key cylinder, and the driver side door is opened, the body ECU operates the combination meter to cause the buzzer to sound.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (COURTESY LIGHT SWITCH)
(a) Using the Techstream, read the Data List.

Body





OK:
On (driver side door is open) appears on screen.
OK -- CHECK BUZZER (COMBINATION METER)

NG -- Continue to next step.

2. INSPECT COURTESY LIGHT SWITCH (DRIVER SIDE)




(a) Remove the courtesy light switch.
(b) Measure the resistance according to the value(s) table below.
Standard resistance:





NG -- REPLACE COURTESY LIGHT SWITCH
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (BODY ECU - COURTESY LIGHT SWITCH)




(a) Disconnect the D12 door courtesy light switch (driver side) and B5 ECU connectors.
(b) Measure the resistance according to the value(s) table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK BUZZER (COMBINATION METER)
(a) Check buzzer (combination meter). Problem Symptoms Table

NG -- GO TO COMBINATION METER SYSTEM
OK -- Continue to next step.

5. READ VALUE USING TECHSTREAM (KEY UN-LOCK WARNING SWITCH)
(a) Using the Techstream, read the Data List.

Body





OK:
On (key is in ignition key cylinder) appears on screen.
OK -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

NG -- Continue to next step.

6. INSPECT UN-LOCK WARNING SWITCH ASSEMBLY




(a) Remove the un-lock warning switch.
(b) Measure the resistance according to the value(s) table below.
Standard resistance:





NG -- REPLACE UN-LOCK WARNING SWITCH ASSEMBLY
OK -- Continue to next step.

7. CHECK HARNESS AND CONNECTOR (BODY ECU - UN-LOCK WARNING SWITCH)




(a) Disconnect the B6 ECU connector.
(b) Disconnect the K3 warning switch connector.
(c) Measure the resistance according to the value(s) table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY