Starting: Removal & Installation Lexus LS IV

REMOVAL

1. REMOVE COWL TOP VENTILATOR LOUVER RH (See «REMOVAL»(ref-349732-S04425564642009120800000) )
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
3. REMOVE INSTRUMENT SIDE PANEL LH (See «REMOVAL»(ref-349746-S04541701892009120800000) )
4. REMOVE NO. 1 INSTRUMENT CLUSTER MOLDING (See «REMOVAL»(ref-349746-S04541701892009120800000) )
5. REMOVE NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY (See «REMOVAL»(ref-349746-S04541701892009120800000) )
6. REMOVE ENGINE SWITCH Disconnect the switch connector. Detach the 2 claws and remove the switch.

Scheme 124

Scheme 125

Scheme 126

1. INSPECT ENGINE SWITCH Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE Tester Connection Switch Position Specified Condition 7 (SS1) - 5 (GND) Not pushed 10 kohms or higher 2 (SS2) - 5 (GND) Not pushed 10 kohms or higher 7 (SS1) - 5 (GND) Pushed Below 1 ohms 2 (SS2) - 5 (GND) Pushed Below 1 ohms If the result is not as specified, replace the engine switch. Apply battery voltage between the terminals of the switch, and check the illumination condition of the switch. HINT: If the positive (+) lead and the negative (-) lead are incorrectly connected, the engine switch indicator will not illuminate. If the voltage is too low, the indicator will not illuminate. OK ITEM SPECIFICATION Measurement Condition Specified Condition Battery positive (+) --> Terminal 11 (SWIL) Battery negative (-) --> Terminal 4 (COM) or 5 (GND) Illuminates Battery positive (+) --> Terminal 12 (INDS) Battery negative (-) --> Terminal 4 (COM) or 5 (GND) Illuminates Battery positive (+) --> Terminal 13 (INDW) Battery negative (-) --> Terminal 4 (COM) or 5 (GND) Illuminates If the result is not as specified, replace the engine switch.

Scheme 127

1. INSTALL ENGINE SWITCH Attach the 2 claws to install the switch. Connect the switch connector.
2. INSTALL NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY (See «INSTALLATION»(ref-349746-S09854143102009120800000) )
3. INSTALL NO. 1 INSTRUMENT CLUSTER MOLDING (See «INSTALLATION»(ref-349746-S09854143102009120800000) )
4. INSTALL INSTRUMENT SIDE PANEL LH (See «INSTALLATION»(ref-349746-S09854143102009120800000) )
5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
6. INSTALL COWL TOP VENTILATOR LOUVER RH (See «INSTALLATION»(ref-349732-S09051375432009120800000) )
7. PERFORM INITIALIZATION Perform initialization (see «INITIALIZATION»(ref-349706-S07943075812009120800000) ). NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.