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'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 (OUTSIDE HANDLE)

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

Intelligent tester

RL-DOOR

DIAGNOSTIC NOTE NORMAL CONDITION CHART

Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
TRIGGER SW	Rear LH side door outside handle lock switch / ON or OFF	ON Rear side door outside handle lock switch LH is pushed OFF Rear side door outside handle lock switch LH is not pushed	-

Techstream

Rear Left Door

DIAGNOSTIC NOTE NORMAL CONDITION CHART

Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
Outside Handle Trigger SW	Rear LH side door outside handle lock switch / ON or OFF	ON Rear side door outside handle lock switch LH is pushed OFF Rear side door outside handle lock switch LH is not pushed	-

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 LH (OPERATION)
1. Replace the rear door ECU LH 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 LH IS DEFECTIVE)

CHECK REAR DOOR OUTSIDE HANDLE LH

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Switch Condition	Specified Condition
d1-1 (TRG-) - d1-3 (TRG+)	ON	Below 1 Ω
d1-1 (TRG-) - d1-3 (TRG+)	OFF	10 kΩ or higher

Fig 1: Identifying D1 Connector Terminals (Rear Door Outside Handle LH)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE REAR DOOR OUTSIDE HANDLE LH (See REAR DOOR )

OK: Go to next Step

CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - REAR DOOR OUTSIDE HANDLE LH)

Fig 2: Identifying O14 ECU Connector Terminals And D1 Handle Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the O14 ECU connector
Disconnect the d1 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
O14-20 (TRG+) - d1-3 (TRG+)	Always	Below 1 Ω
d1-3 (TRG+) - 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 LH)

Fig 3: Identifying D2 Oscillator Connector Terminals And D1 Handle Connector Terminals

Disconnect the d2 oscillator connector
Disconnect the d1 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
d2-9 (TRG-) - d1-1 (TRG-)	Always	Below 1 Ω
d1-1 (TRG-) - 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 8

OK: Go to next Step
CHECK REAR DOOR ECU LH (OPERATION)
1. Replace the rear door ECU LH 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 LH IS DEFECTIVE)