Touch Sensor Circuit

DESCRIPTION

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

WIRING DIAGRAM

INSPECTION PROCEDURE

1. READ VALUE OF INTELLIGENT TESTER

1. Connect the intelligent tester to the DLC3.

2. Turn the engine switch on (IG).

3. Following the display on the tester, select "DATA LIST".

   SMART KEY (Certification ECU): 

   Item	Measurement Item/Range (Display)	Normal Condition	Diagnostic Note
   D Touch Sensor	Status of touch sensor front LH/ ON or OFF	ON: Touch sensor is touched OFF: Touch sensor is not touched	-
   P Touch Sensor	Status of touch sensor front RH/ ON or OFF	ON: Touch sensor is touched OFF: Touch sensor is not touched	-

   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

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

1. Disconnect the P33 ECU connector.

2. Disconnect the oscillator connectors.

Standard resistance:

Tester Connection (Symbols)	Condition	Specified Condition
P33-5 (SEL1) - o2-4 (SEL)	Always	Below 1 Ω
P33-22 (SEN1) - o2-6 (SENS)	Always	Below 1 Ω
P33-6 (SEL2) - n2-4 (SEL)	Always	Below 1 Ω
P33-23 (SEN2) - n2-6 (SENS)	Always	Below 1 Ω
P33-5 (SEL1) - Body ground	Always	10 kΩ or higher
P33-22 (SEN1) - Body ground	Always	10 kΩ or higher
P33-6 (SEL2) - Body ground	Always	10 kΩ or higher
P33-23 (SEN2) - Body ground	Always	10 kΩ or higher

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

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

1. Replace the door oscillator.

2. Check that the entry UNLOCK function operates normally.

   OK:

   Entry UNLOCK function operates normally.
   

NG	END (ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)

OK

4. INSPECT CERTIFICATION ECU

1. Reconnect the ECU and the oscillator connectors.

2. Connect the intelligent tester to the DLC3.

3. Turn the engine switch on (IG).

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

   Standard voltage:

   Tester Connection (Symbols)	Condition	Specified Condition
   SEL1 (P33-5) - Body ground	Move the key more than 5 m (16.4 ft) away from the front door LH	10 to 14 V
   SEL1 (P33-5) - Body ground	Bring it to the outside handle	Below 1 V
   SEL2 (P33-6) - Body ground	Move the key more than 5 m (16.4 ft) away from the front door RH	10 to 14 V
   SEL2 (P33-6) - Body ground	Bring it to the outside handle	Below 1 V
   SEN1 (P33-22) - Body ground	Front door LH outside handle is not held	10 to 14 V
   SEN1 (P33-22) - Body ground	Front door LH outside handle is held	Below 1 V
   SEN2 (P33-23) - Body ground	Front door RH outside handle is not held	10 to 14 V
   SEN2 (P33-23) - Body ground	Front door RH outside handle is held	Below 1 V

NG	REPLACE CERTIFICATION ECU

OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE