Lighting System: Overview Toyota 4Runner IV рестайлинг

OPERATION CHECK

1. ILLUMINATED ENTRY SYSTEM OPERATION CHECK The light that is lit in the illuminated entry system is explained below: Turn the ignition switch to OFF, close all the doors, and set the driver's door in the lock condition. Unlock the door and open any other door, and check that the room light comes on. Close the door, and check that the room light goes off within 15 seconds. Turn the ignition switch to ON, and open and close any other door. Check that the room light immediately goes off. Turn the ignition switch to OFF. Open and close any door to light the room light. Before the room light goes off within 15 seconds, turn the ignition switch to ON, and check that the room light goes off immediately. Turn the ignition switch OFF. Open and close any door to light the room light. Before the light goes off within 15 seconds, lock the driver door. Check that the light goes off immediately.
2. DOME RELAY CUT OPERATION CHECK Remove the ignition key and close all doors. Open the driver door to light the room light, and leave it as opened. Check that the light goes off in about 30 min. After the room light goes off, close the driver's door. Open any door except the driver's door to turn the room light on, and then open the driver's door. Check that room light goes off within 30 min. after opening the driver's door. Close all the doors. With the ignition key inserted, open any door to light the room light, and then, remove the ignition key. Check that the room light goes off within 30 min. One of the room light switches is on and close all doors. Lock all doors, and check that the room light goes off within 3 sec.
3. SIDE STEP LIGHT OPERATION CHECK Turn the ignition switch to OFF, close all the doors, and set the driver door in the lock condition. Unlock the door and open front or rear doors, and check that the side step light comes on. Close the door and check that the side step light goes off within 15 seconds. Under the conditions that the ignition switch is ON, one of the front or rear doors opens and the shift range is at any positions except for P positions, check that the side step light goes off when the vehicle speed exceeds 8 km/h (4.8 mph). Then, check that the side step light comes on when the vehicle speed become 4 km/h (2.4 mph) or less.
4. LIGHT AUTO CUT OPERATION CHECK Turn the ignition switch to ON, and turn the headlight switch to TAIL or HEAD. Turn the ignition switch to OFF, and open and close the driver's door, check the headlight goes off within 30 sec.

DESCRIPTION

This DTC is output when failure in the light sensor circuit is detected.

DTC DETECTION CONDITION CHART

Scheme 1

Scheme 2

1. CHECK LIGHTS Check that the headlight and the taillight come on. NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE OK: GO TO NEXT STEP
2. READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to DLC3. Turn the ignition switch to ON, and push the intelligent tester main SW ON. Select the item "AUTO LIGHT SW" in the DATA LIST, and read its value displayed on the intelligent tester. OK: Light control SW AUTO --> ON Light control SW except AUTO --> OFF NG: Go to step 5 OK: GO TO NEXT STEP
3. INSPECT AUTOMATIC LIGHT CONTROL SENSOR Measure voltage between terminals as shown in the chart below. Check the continuity between terminal 3 (CLTE) and body ground as shown in the chart below. Using an oscilloscope, check that signal waveform appears between terminals. Standard voltage AUTOMATIC LIGHT CONTROL SENSOR Terminal No. (Symbol) Tester connection Condition Specified condition 1 (CLTB) 1 - 3 Constant 10 to 14 V 3 (CLTE) 3 - Body ground Constant Continuity 4 (CLTS) 4 - 3 IG SW ON Dimmer SW AUTO Signal waveform appears depending on outside brightness NG: REPLACE AUTOMATIC LIGHT CONTROL SENSOR OK: GO TO NEXT STEP
4. CHECK HARNESS AND CONNECTOR (BETWEEN BODY ECU AND AUTOMATIC LIGHT CONTROL SENSOR) Check that signal waveform appears between terminals B6-4 (CLTS) and B6-21 (CLTE) of the multiplex network body ECU. Standard: Bar appears Measure voltage between terminals B6-6 (CLTB) and B6-21 (CLTE) of the multiplex network body ECU. Standard voltage: 10 to 14 V Check the continuity between terminal B6-21 (CLTE) of the multiplex network body ECU and body ground. Standard: There is continuity NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE MULTIPLEX NETWORK BODY ECU
5. CHECK HARNESS AND CONNECTOR (BETWEEN HEADLIGHT DIMMER SWITCH ASSEMBLY AND BODY ECU) Check for open and short circuit in harness and connector. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE HEADLIGHT DIMMER SWITCH ASSEMBLY

Scheme 3

Scheme 4

Scheme 5

1. INSPECT HEADLIGHT RELAY Check the continuity of the headlight relay. Standard HEADLIGHT RELAY Condition Tester connection Specified condition Constant 1-2 Continuity Constant 3-5 No continuity Apply B+ between terminal 1 and 2 3 - 5 Continuity NG: REPLACE HEADLIGHT RELAY OK: GO TO NEXT STEP
2. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY (HEAD) Inspect light control switch continuity. Check that there is a continuity between terminals at each switch position as shown in the chart. Standard HEADLIGHT DIMMER SWITCH ASSEMBLY (HEAD) Switch operation Tester connection Specified condition OFF - No continuity HEAD 13 - 16 - 14 Continuity NG: REPLACE HEADLIGHT DIMMER SWITCH ASSEMBLY OK: GO TO NEXT STEP
3. CHECK HARNESS AND CONNECTOR (BETWEEN BODY ECU AND HEADLIGHT DIMMER SWITCH ASSEMBLY) Check the continuity terminal B6-1 (HEAD) of the multiplex network body ECU and the headlight dimmer switch assembly. Standard: There is continuity NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: REPLACE MULTIPLEX NETWORK BODY ECU