Lighting: Other Lexus GX J120

PRECAUTION

1. PRECAUTION OF HEADLIGHT BULB REPLACEMENT If the adhered oil is left unremoved from the halogen lamp surface, the lamp service life is shortened as it becomes hot when it is turned on. Since the internal pressure of a halogen lamp is high, dropping, hitting or damaging the bulb may cause the glass to scatter. Therefore, handle it with great care. When replacing a bulb, do not remove it until a new bulb is prepared because if it is left being removed for a long period of time, the lens may be covered with dirt or moisture. Be sure to replace with a bulb of the same watt. Firmly reinstall the socket after replacing a bulb. Otherwise, cloudy lens or water leakage will be caused.

Scheme 101

Scheme 102

1. INSPECT TURN SIGNAL FLASHER CIRCUIT Measure voltage between terminals as shown in «TURN SIGNAL FLASHER CIRCUIT»(ref-228802-S24025700232006041100000) . TURN SIGNAL FLASHER CIRCUIT Tester connection Condition Specified condition 9 - Ground Always Continuity 1 - Ground Turn ignition switch ON Battery positive voltage 1 - Ground Turn ignition switch OFF No voltage 6 - Ground Always Battery positive voltage Connect the connector to the turn signal flasher and turn the ignition switch to ON. Inspect the wire harness side connector from the back side as shown in «TURN SIGNAL FLASHER CIRCUIT (BACK SIDE)»(ref-228802-S28724674992006041100000) . TURN SIGNAL FLASHER CIRCUIT (BACK SIDE) Tester connection Condition Specified condition 2 - Ground Hazard switch OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 2 - Ground Turn signal switch (right turn) OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 2 - Ground Hazard switch ON <=> OFF 0 V <=> 10 - 14 V (60 to 120 time per minutes) <=> 10 - 14 V 3 - Ground Hazard switch OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 3 - Ground Turn signal switch (right turn) OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 4 - Ground Hazard switch OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 4 - Ground Turn signal switch (left turn) OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 4 - Ground Turn signal switch (left turn) ON <=> OFF 0 V <=> 10 - 14 V (60 to 120 time per minutes) <=> 10 - 14 V 5 - Ground Hazard switch OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 5 - Ground Turn signal switch (left turn) OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 7 - Ground Turn signal switch (left turn) OFF -> ON 10 - 14 V <=> 0 V 8 - Ground Turn signal switch (right turn) OFF -> ON 10 - 14 V <=> 0 V 10 - Ground Hazard switch OFF -> ON 10 - 14 V <=> 0 V 12 - Ground Turn ignition switch ON and engine OFF -> ON 10 - 14 V <=> 0 V
2. INSPECT TOWING CONVERTER RELAY Measure voltage between terminals as shown in «TOWING CONVERTER RELAY»(ref-228802-S14014851172006041100000) . TOWING CONVERTER RELAY Tester connection Condition Specified condition 1 - Ground Always Battery positive voltage 2 - Ground Turn signal switch (right turn) OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 2 - Ground Depress the brake pedal Battery positive voltage 3 - Ground Turn signal switch (right turn) OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 4 - Ground Turn signal switch (left turn) OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes) 4 - Ground Depress the brake pedal Battery positive voltage 6 - Ground Always Continuity 8 - Ground Depress the brake pedal Battery positive voltage 9 - Ground Turn signal switch (left turn) OFF -> ON 0 V <=> 10 - 14 V (60 to 120 time per minutes)

Scheme 103

Scheme 104

Scheme 105

Scheme 106

Scheme 107

Scheme 108

Scheme 109

Scheme 110

Scheme 111

Scheme 112

Scheme 113

Scheme 114

Scheme 115

Scheme 116

Scheme 117

Scheme 118

Scheme 119

1. HEADLAMP DIMMER SWITCH ASSY Inspect the light control switch continuity. Check continuity between terminals at each switch position as shown in «LIGHT CONTROL SWITCH CONTINUITY»(ref-228802-S09959805032006041100000) . LIGHT CONTROL SWITCH CONTINUITY Switch operation Tester connection Specified condition OFF - No continuity TAIL 14 - 16 Continuity HEAD 13 - 16 - 14 Continuity AUTO 16 - 12 Continuity Inspect the headlamp dimmer switch continuity. Check continuity between terminals at each switch position as shown in «HEADLAMP DIMMER SWITCH CONTINUITY»(ref-228802-S36760017762006041100000) . HEADLAMP DIMMER SWITCH CONTINUITY Switch operation Tester connection Specified condition FLASH 7 - 8 - 16 Continuity LOW BEAM 16 - 17 Continuity HI BEAM 7 - 16 Continuity Inspect the turn signal switch continuity. Check continuity between terminals at each switch position as shown in «TURN SIGNAL SWITCH CONTINUITY»(ref-228802-S04537710472006041100000) . TURN SIGNAL SWITCH CONTINUITY Switch operation Tester connection Specified condition Right turn 2 - 3 Continuity Neutral - No continuity Left turn 1 - 2 Continuity Inspect the front fog lamp switch continuity. Check continuity between terminals at each switch position as shown in «FRONT FOG LAMP SWITCH CONTINUITY»(ref-228802-S11548795982006041100000) . FRONT FOG LAMP SWITCH CONTINUITY Switch operation Tester connection Specified condition OFF - No continuity ON 10 - 11 Continuity
2. HAZARD WARNING SIGNAL SWITCH ASSY Check continuity between terminals at each switch position as shown in «WARNING SIGNAL SWITCH ASSY»(ref-228802-S09444548722006041100000) . WARNING SIGNAL SWITCH ASSY Switch operation Tester connection Specified condition OFF 2 - 3 No continuity ON 2 - 3 Continuity Illumination circuit 4 - 5 Continuity Inspect illumination operation. Connect the battery positive (+) lead to terminal 4 and the battery negative (-) lead to terminal 5, then check that the illumination comes on.
3. FRONT DOOR COURTESY LAMP SWITCH ASSY Inspect courtesy lamp assy continuity. Check continuity between terminals when the switch is operated. Standard: ON (When shaft is pressed): No continuity OFF (When shaft is not pressed): Continuity
4. REAR DOOR COURTESY LAMP SWITCH ASSY Inspect courtesy lamp assy continuity. Check continuity between terminal and the switch body when the switch is operated. Standard: ON (When shaft is pressed): No continuity OFF (When shaft is not pressed): Continuity
5. BACK DOOR COURTESY LAMP SWITCH ASSY Inspect courtesy lamp assy continuity. Check continuity between terminal and the switch body when the switch is operated. Standard: ON (When shaft is pressed): No continuity OFF (When shaft is not pressed): Continuity
6. GLOVE BOX LAMP SWITCH Inspect courtesy lamp assy continuity. Check continuity between terminals when the switch is operated. Standard: ON (When shaft is pressed): No continuity OFF (When shaft is not pressed): Continuity
7. HEADLAMP RELAY Inspect relay continuity. Standard: HEADLAMP RELAY Condition Tester connection Specified condition Always 1 - 2 Continuity Always 3 - 5 No continuity Apply +B between terminal 1 and 2 3 - 5 Continuity
8. TAIL LAMP RELAY Inspect relay continuity. Standard: TAIL LAMP RELAY Condition Tester connection Specified condition Always 1 - 2 Continuity Always 3 - 5 No continuity Apply +B between terminal 1 and 2 3 - 5 Continuity
9. FOG LAMP RELAY Inspect the relay continuity. FOG LAMP RELAY Condition Tester connection Specified condition Always 1 - 2 Continuity Always 3 - 5 No continuity Apply +B between terminals 1 and 2. 3 - 5 Continuity
10. ROOM LAMP CONTROL RELAY (DOME RELAY) Inspect relay continuity. Standard: ROOM LAMP CONTROL RELAY (DOME RELAY) Condition Tester connection Specified condition Always 1 - 2 Continuity Always 3 - 5 No continuity Apply +B between terminal 1 and 2 3 - 5 Continuity
11. PARK/NEUTRAL POSITION SWITCH RELAY (BK/UP RELAY) Inspect relay continuity. Standard: PARK/NEUTRAL POSITION SWITCH RELAY (BK/UP RELAY) Condition Tester connection Specified condition Always 1 - 2 Continuity Always 3 - 5 No continuity Apply +B between terminal 1 and 2 3 - 5 Continuity
12. TOWING CONVERTER RELAY (BATT CHG RELAY) Inspect relay continuity. Standard: TOWING CONVERTER RELAY (BATT CHG RELAY) Condition Tester connection Specified condition Always 1 - 2 Continuity Always 3 - 5 No continuity Apply +B between terminal 1 and 2 3 - 5 Continuity
13. TOWING CONVERTER RELAY (TOWING TAIL RELAY) Inspect relay continuity. Standard: TOWING CONVERTER RELAY (TOWING TAIL RELAY) Condition Tester connection Specified condition Always 1 - 2 Continuity Always 3 - 5 No continuity Apply +B between terminal 1 and 2 3 - 5 Continuity
14. TRANSPONDER KEY AMPLIFIER Connect the battery positive (+) lead to terminal 2 and the battery negative (-) lead to terminal 6, and check that the indicator light comes on.
15. MAP LAMP ASSY Inspect map light assy continuity. Check continuity between terminals at each switch position as shown in «MAP LAMP ASSY»(ref-228802-S08971070752006041100000) . Standard: MAP LAMP ASSY Switch operation Tester connection Specified condition OFF - No continuity DOOR 7 (+B) - 2 (DOOR) Continuity ON 7 (+B) - 4 (E) Continuity
16. ROOM LAMP ASSY NO. 1 Inspect room lamp assy No. 1 continuity. Check continuity between terminals at each switch position as shown in «TESTER CONNECTION AND SPECIFIED CONDITION»(ref-228802-S40800648072006041100000) . Standard: ROOM LAMP ASSY NO. 1 Switch operation Tester connection Specified condition OFF - No continuity DOOR 1 - 2 Continuity ON 1 - 3 Continuity
17. ROOM LAMP ASSY NO. 2 Inspect room lamp assy No. 2 continuity. Check continuity between terminals at each switch position as shown in «ROOM LAMP ASSY NO. 2»(ref-228802-S11270667092006041100000) . Standard: ROOM LAMP ASSY NO. 2 Switch operation Tester connection Specified condition OFF - No continuity DOOR 1 - 2 Continuity ON 1 - 3 Continuity
18. FRONT DOOR COURTESY LAMP ASSY RH Check continuity between terminals. Standard: Continuity exists
19. FRONT DOOR COURTESY LAMP ASSY LH Check continuity between terminals. Standard: Continuity exists
20. GLOVE BOX LAMP ASSY Check continuity between terminals. Standard: Continuity exists
21. RH VISOR ASSY Inspect vanity light continuity. Check continuity between terminals 1 and 2 when the light is operated. Standard: OFF (closed): No continuity ON (opened): Continuity
22. LH VISOR ASSY Inspect vanity light continuity. Check continuity between terminals 1 and 2 when the light is operated. Standard: OFF (closed): No continuity ON (opened): Continuity
23. STOP LAMP SWITCH ASSY Check continuity between terminals at each switch position as shown in «STOP LAMP SWITCH ASSY»(ref-228802-S28574434842006041100000) . Standard: STOP LAMP SWITCH ASSY Switch position Tester connection Specified condition Switch pin free 1 - 2 No continuity Switch pin free 3 - 4 Continuity Switch pin pushed in 1 - 2 Continuity Switch pin pushed in 3 - 4 No continuity
24. LAMP ASSY, INTERIOR ILLUMINATION, NO. 1 (Inside Handle Illumination) Check continuity between terminals 1 (+B) and 2 (GND). Standard: Continuity HINT: Connect the positive (+) terminal of the tester to the terminal 1 (+B) of the connector, and the negative (-) terminal of the tester to the terminal 2 (GND) of the connector to check the continuity.
25. INTERIOR ILLUMINATION LAMP ASSY NO. 2 (Driver Side Foot Light) Check continuity between terminals 1 (+B) and 2 (GND). Standard: Continuity HINT: Connect the positive (+) terminal of the tester to the terminal 1 (+B) of the connector, and the negative (-) terminal of the tester to the terminal 2 (GND) of the connector to check the continuity.
26. INTERIOR ILLUMINATION LAMP ASSY NO. 2 (Front Passenger Side Foot Light) Check continuity between terminals 1 (+B) and 2 (GND). Standard: Continuity HINT: Connect the positive (+) terminal of the tester to the terminal 1 (+B) of the connector, and the negative (-) terminal of the tester to the terminal 2 (GND) of the connector to check the continuity.
27. STEP LAMP ASSY (RH Side) Inspect the side step lamp assy. Check continuity between terminals when the courtesy lamp switch is operated. Standard: ON: Continuity OFF: No continuity
28. STEP LAMP ASSY (LH Side) Check continuity between terminals when the courtesy lamp switch is operated. Standard: ON: Continuity OFF: No continuity

Scheme 120