Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before performing the inspection, check that there are no problems related to the "CAN COMMUNICATION SYSTEM" and "LIN COMMUNICATION SYSTEM".

CHECK POWER DOOR LOCK OPERATION
1. When the master switch assembly's door control switch is operated, check that the locked doors unlock (see OPERATION CHECK )
  OK: Locked doors unlock.
NG: GO TO POWER DOOR LOCK CONTROL SYSTEM

OK: Go to next Step

READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM

Using the intelligent tester or Techstream, read the Data List (see DATA LIST / ACTIVE TEST ).

Intelligent tester

RR-DOOR

DIAGNOSTIC NOTE NORMAL CONDITION CHART

Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
ENTRY SENSOR	Rear RH side door touch sensor / ON or OFF	ON Rear RH side door sensor is touched OFF Rear RH side door sensor is not touched	-

Techstream

Rear Right Door

DIAGNOSTIC NOTE NORMAL CONDITION CHART

Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
Entry Sensor	Rear RH side door touch sensor / ON or OFF	ON Rear RH side door sensor is touched OFF Rear RH side door sensor is not touched	-

OK: On tester screen, item changes between ON and OFF according to above chart.

NG: Go to step 4

OK: Go to next Step

CHECK REAR DOOR ECU RH (OPERATION)
1. Replace the rear door ECU RH with a new one or normally functioning one (see REAR DOOR ).
2. Check that the entry function operates normally (see OPERATION CHECK ).
  OK: Operates normally
NG: REPLACE CERTIFICATION ECU (See REMOVAL )

OK: END (REAR DOOR ECU RH IS DEFECTIVE)

CHECK HARNESS AND CONNECTOR (REAR DOOR ECU RH - DOOR ELECTRICAL KEY OSCILLATOR)

Fig 1: Identifying C2 Oscillator Connector Terminals And O3 ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the O3 ECU connector
Disconnect the c2 oscillator connector.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
O3-16 (SEL) - c2-4 (SEL)	Always	Below 1 Ω
O3-16 (SEL) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next Step

CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE RH)

Fig 2: Identifying C1 Handle Connector Terminals And C2 Oscillator Connector Terminals

Disconnect the c2 oscillator connector.
Disconnect the c1 handle connector.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
c2-2 (SQT6) - c1-6 (SGT5)	Always	Below 1 Ω
c2-2 (SGT6) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next Step

CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION)
1. Replace the door electrical key oscillator with a new one or normally functioning one (see REAR DOOR ).
2. Check that the entry function operates normally (see OPERATION CHECK )
  OK: Operates normally
NG: Go to step 7

OK: END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)
CHECK REAR DOOR OUTSIDE HANDLE RH (OPERATION)
1. Replace the rear door outside handle RH with a new one or normally functioning one (see REMOVAL )
2. Check that the entry function operates normally (see OPERATION CHECK )
  OK: Operates normally
NG: Go to step 8

OK: END (REAR DOOR OUTSIDE HANDLE RH IS DEFECTIVE)
REPLACE REAR DOOR ECU RH (OPERATION)
1. Replace the rear door ECU RH with a new one or normally functioning one (see REAR DOOR )
2. Check that the entry function operates normally (see OPERATION CHECK )
  OK: Operates normally
NG: REPLACE CERTIFICATION ECU (See REMOVAL )

OK: END (REAR DOOR ECU RH IS DEFECTIVE)