Touch Sensor Circuit

DOOR LOCK: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: Touch Sensor Circuit
- Touch Sensor Circuit

DESCRIPTION

This circuit receives the signal indicating whether or not a touch sensor signal is detected.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Following the display on the tester, select "Data List".

Smart Key (Certification ECU):





OK:

"ON" (screen is touched) or "OFF" (screen is not touched) appears on the tester screen.

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ELECTRICAL KEY OSCILLATOR)

(a) Disconnect the P33 ECU connector.





(b) Disconnect the oscillator connectors.

Standard resistance:





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

3. CHECK AND REPLACE ELECTRICAL KEY OSCILLATOR (CHECK OPERATION OF OSCILLATOR)

(a) Replace the door oscillator.

(b) Check that the entry UNLOCK function operates normally.

OK:

Entry UNLOCK function operates normally.

NG -- END (ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)
OK -- Continue to next step.

4. INSPECT CERTIFICATION ECU

(a) Reconnect the ECU and the oscillator connectors.





(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG).

(d) Measure the voltage according to the value(s) in the table below.

Standard voltage:





NG -- REPLACE CERTIFICATION ECU

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