Door Oscillator Circuit

DOOR LOCK: SMART KEY SYSTEM: Door Oscillator Circuit

Door Oscillator Circuit

DESCRIPTION

Door oscillators are built into each door. Each of them forms its own action area around its door and detects the presence of the key.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT DOOR OSCILLATOR

(a) Disconnect the oscillator connectors.
(b) Measure the voltage according to the value(s) in the table below.
Voltage:
Front LH side

Front RH side

Rear LH side

Rear RH side

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

2. CHECK WIRE HARNESS (DOOR ELECTRICAL KEY OSCILLATOR - DOOR ECU)

(a) Disconnect the D39 and D40 ECU connector.

(b) Measure the resistance between the oscillator and the certification ECU to check for an open circuit in the wire harness.
Resistance:
Below 1 Ohms
(c) Measure the resistance between the oscillator and the certification ECU to check for an short circuit in the wire harness.
Resistance:
10 kOhms or higher

HINT: Refer to the wiring diagram for connection of each terminal.

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

3. PERFORM ACTIVE TEST USING TECHSTREAM (CERTIFICATION ECU OUTPUT SIGNAL)

(a) Reconnect the ECU and the oscillator connectors.
(b) Connect Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the tester on.
(e) Enter the following menus: Body Electrical / Smart Key / Active Test.
(f) Perform the Active Test according to the display on the tester.

Smart Key:

(g) Measure the frequency according to the value(s) in the table below.
OK:

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

NG -- Continue to next step.

4. REPLACE DOOR OSCILLATOR (CHECK OPERATION OF DOOR OSCILLATOR)
(a) Replace the door oscillator.
(b) Check that the entry LOCK / UNLOCK function operates normally.
OK:
Entry LOCK / UNLOCK function operates normally.

NG -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
OK -- END (DOOR OSCILLATOR IS DEFECTIVE)