| Last Modified: 4-30-2014 | 6.6 G | Doc ID: RM000001BZH001X |
| Model Year: 2006 | Model: LX470 | Prod Date Range: [05/2005 - ] |
| Title: LIGHTING: LIGHTING SYSTEM: ON-VEHICLE INSPECTION; 2006 MY LX470 [05/2005 - ] | ||
ON-VEHICLE INSPECTION
1. CHECK TURN SIGNAL FLASHER ASSEMBLY CIRCUIT
(a) Disconnect the connector from the combination switch and inspect the connector on the wire harness side, as shown.
Standard voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Ignition switch ON |
10 to 14 V |
|
Ignition switch ACC or OFF |
Below 1 V |
|
|
4 - Body ground |
Always |
10 to 14 V |
Standard resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
2 - Body ground |
Always |
Below 1 Ω |
|
3 - Body ground |
||
|
7 - Body ground |
||
|
5 - Body ground |
Turn signal switch LEFT |
|
|
Turn signal switch is RIGHT or OFF |
10 kΩ or higher |
|
|
6 - Body ground |
Turn signal switch RIGHT |
Below 1 Ω |
|
Turn signal switch is LEFT or OFF |
10 kΩ or higher |
|
|
8 - Body ground |
Hazard warning switch ON |
Below 1 Ω |
|
Hazard warning switch OFF |
10 kΩ or higher |
If circuit is as specified, replace the relay.
If circuit is not as specified, inspect the circuits connected to other parts.
2. CHECK TOWING CONVERTER RELAY CIRCUIT
(a) Remove the towing converter with connector still connected and inspect the wire harness side connector from the back side as shown in the table.
Standard voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
4 - 6 |
Turn signal LEFT or hazard warning switch ON |
10 to 14 V ← → Below 1 V |
|
Turn signal switch LEFT and stop light switch ON (brake pedal depressed) |
||
|
Turn signal switch OFF, hazard warning switch OFF and stop light switch OFF (brake pedal released) |
Below 1 V |
|
|
Stop light switch ON (brake pedal depressed) |
10 to 14 V |
|
|
6 - 9 |
Turn signal LEFT or hazard warning switch ON |
10 to 14 V ← → Below 1 V |
|
Turn signal switch OFF or RIGHT and hazard warning switch OFF |
Below 1 V |
|
|
2 - 6 |
Turn signal switch RIGHT or hazard warning switch ON |
10 to 14 V ← → Below 1 V |
|
Turn signal switch RIGHT and stop light switch ON (brake pedal depressed) |
||
|
Turn signal switch OFF, and hazard warning switch OFF and stop light switch OFF (brake pedal released) |
Below 1 V |
|
|
Stop light switch ON (brake pedal depressed) |
10 to 14 V ← → Below 1 V |
|
|
1 - 6 |
Always |
10 to 14 V |
|
6 - 8 |
Stop light switch ON (brake pedal depressed) |
|
|
Stop light switch OFF (brake pedal released) |
Below 1 V |
|
|
3 - 6 |
Turn signal switch RIGHT or hazard warning switch ON |
10 to 14 V |
|
Turn signal switch OFF or RIGHT and hazard warning switch OFF |
Below 1 V |
Standard resistance:
|
Tester Connection |
Specified Connection |
|---|---|
|
6 - Body ground |
Below 1 Ω |
If the circuit is not as specified, inspect the circuit connected to other parts.
3. CHECK LIGHT CONTROL SWITCH CIRCUIT
(a) Disconnect the C18 switch connector.
(b) Inspect the connector on the wire harness side , as shown.
OK:
|
Tester Connection |
Specified Condition |
|---|---|
|
C18-16 - Body ground |
Continuity |
(c) Connect the wire harness side connector to the light control and dimmer switch.
(d) Inspect the connector from the back side, as shown.
Standard voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C18-13 - Body ground |
Light control switch TAIL or OFF |
10 to 14 V |
|
C18-14 - Body ground |
Light control switch OFF |
|
|
C18-13 - Body ground |
Light control switch HEAD |
Below 1 V |
|
C18-14 - Body ground |
Light control switch TAIL or HEAD |
If circuit is not as specified, inspect the wire harness.
4. CHECK HEADLIGHT DIMMER SWITCH CIRCUIT
(a) Disconnect the C18 switch connector.
(b) Inspect the connector on the wire harness side, as shown.
OK:
|
Tester Connection |
Specified Condition |
|---|---|
|
C18-16 - Body ground |
Continuity |
(c) Connect the wire harness side connector to the light control and dimmer switch.
(d) Inspect the connector from the back side, as shown.
Standard voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C18-8 - Body ground |
Headlight dimmer switch LOW or HIGH |
10 to 14 V |
|
C18-13 - Body ground |
Light control switch HEAD and dimmer switch LOW and fog light switch ON |
|
|
C18-8 - Body ground |
Headlight dimmer switch FLASH |
Below 1 V |
|
C18-13 - Body ground |
Light control switch HEAD and dimmer switch LOW and fog light switch ON. |
If circuit is not as specified, inspect the wire harness.
5. CHECK FOG LIGHT SWITCH CIRCUIT
(a) Disconnect the C18 switch connector.
(b) Inspect the connector on the wire harness side, as shown.
OK:
|
Tester Connection |
Specified Condition |
|---|---|
|
C18-10 - C18-17 |
Continuity |
(c) Connect the wire harness side connector to the light control and dimmer switch.
(d) Inspect the connector from the back side, as shown.
Standard voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C18-10 - Body ground |
Light control switch HEAD and dimmer switch LOW and fog light switch ON |
10 to 14 V |
|
C18-10 - Body ground |
Light control switch HEAD and dimmer switch HI or FLASH and fog light switch ON. |
Below 1 V |
If circuit is not as specified, inspect the wire harness.
6. CHECK TURN SIGNAL SWITCH CIRCUIT
(a) Disconnect the C18 switch connector.
(b) Inspect the connector on the wire harness side, as shown.
OK:
|
Tester Connection |
Specified Condition |
|---|---|
|
C18-2 - Body ground |
Continuity |
If circuit is not as specified, inspect the wire harness.
(c) Connect the wire harness side connector to the light control and dimmer switch.
(d) Inspect the connector from the back side, as shown.
Standard voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C18-2 - Body ground |
Ignition switch ON and turn signal switch Left |
Below 1 V |
|
C18-1 - Body ground |
Ignition switch ON and turn signal switch Left |
10 to 14 V → Below 1 V → 10 to 14 V |
|
C18-3 - Body ground |
Ignition switch ON and turn signal switch Left |
If circuit is not as specified, inspect the circuits connected to other parts.
7. CHECK FRONT PERSONAL LIGHT CIRCUIT
(a) Disconnect the F12 light connector.
(b) Inspect the connector on the wire harness side, as shown.
Standard voltage:
OK
|
Tester Connection |
Specified Condition |
|---|---|
|
F12-1 - Body ground |
10 to 14 V |
|
Tester Connection |
Specified Condition |
|---|---|
|
F12-2 - Body ground |
Continuity |
If circuit is not as specified, inspect power source or wire harness.
8. CHECK REAR PERSONAL LIGHT CIRCUIT
(a) Disconnect the F11 light connector.
(b) Inspect the connector on the wire harness side, as shown.
Standard continuity:
|
Tester Connection |
Specified Condition |
|---|---|
|
F11-1 - Body ground |
Continuity |
If circuit is not as specified, inspect power source or wire harness.
9. CHECK VANITY LIGHT CIRCUIT
(a) Disconnect the vanity light connectors.
(b) Inspect the connector on the wire harness side, as shown.
Standard voltage:
Standard continuity
|
Tester Connection |
Specified Condition |
|---|---|
|
1 - Body ground |
10 to 14 V |
|
Tester Connection |
Specified Condition |
|---|---|
|
2 - Body ground |
Continuity |
If circuit is not as specified, inspect power source or wire harness.
10. CHECK DOOR COURTESY SWITCH CIRCUIT
(a) Disconnect the door courtesy switch connectors.
(b) Inspect the connector on the wire harness side, as shown.
OK:
|
Tester Connection |
Specified Condition |
|---|---|
|
1 - Body ground |
10 to 14 V |
If circuit is not as specified, inspect power source or wire harness.
11. CHECK BACK DOOR COURTESY SWITCH LIGHT CIRCUIT
(a) Disconnect the block door courtesy light switch connectors.
(b) Inspect the connector on the wire harness side, as shown.
OK:
|
Tester Connection |
Specified Condition |
|---|---|
|
1 - Body ground |
Continuity |
If circuit is not as specified, inspect power source or wire harness.
12. CHECK FOOT LIGHT CIRCUIT
(a) Disconnect the foot light connectors.
(b) Inspect the connector on the wire harness side, as shown.
Standard voltage:
OK
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Ignition switch ON and door open |
10 to 14 V |
|
Tester Connection |
Specified Condition |
|---|---|
|
2 - Body ground |
Continuity |
If circuit is not as specified, inspect power source or wire harness.
13. CHECK INSIDE DOOR HANDLE ILLUMINATION CIRCUIT
(a) Disconnect the inside door handle illumination connectors.
(b) Inspect the connector on the wire harness side, as shown.
Standard voltage:
OK
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Ignition switch ON and door open |
10 to 14 V |
|
Tester Connection |
Specified Condition |
|---|---|
|
2 - Body ground |
Continuity |
If circuit is not as specified, inspect power source or wire harness.
14. CHECK SIDE STEP LIGHT CIRCUIT
(a) Disconnect the side step light connectors.
(b) Inspect the connector on the wire harness side, as shown.
Standard voltage:
OK
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Ignition switch ON and door open |
10 to 14 V |
|
Tester Connection |
Specified Condition |
|---|---|
|
2 - Body ground |
Continuity |
If circuit is not as specified, inspect power source or wire harness.
15. CHECK OUTER FOOT LIGHT CIRCUIT
(a) Disconnect the outer foot light connectors.
(b) Inspect the connector on the wire harness side, as shown.
Standard voltage:
OK
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Ignition switch ON and door open |
10 to 14 V |
|
Tester Connection |
Specified Condition |
|---|---|
|
2 - Body ground |
Continuity |
If circuit is not as specified, inspect power source or wire harness.
16. CHECK CENTER CONSOLE STEP LIGHT CIRCUIT
(a) Disconnect the center console step light connector.
(b) Inspect the connector on the wire harness side, as shown.
Standard voltage:
OK
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Ignition switch ON and door open |
10 to 14 V |
|
Tester Connection |
Specified Condition |
|---|---|
|
2 - Body ground |
Continuity |
If circuit is not as specified, inspect power source or wire harness.
17. CHECK STOP LIGHT SWITCH CIRCUIT
(a) Disconnect the stop light switch connectors.
(b) Inspect the connector on the wire harness side, as shown.
Standard voltage:
|
Tester Connection |
Specified Condition |
|---|---|
|
2 - Body ground |
10 to 14 V |
If circuit is not as specified, inspect power source or wire harness.
18. CHECK HI-MOUNTED STOP LIGHT CIRCUIT
(a) Disconnect the hi-mount stop light connector.
(b) Inspect the connector on the wire harness side, as shown.
Standard voltage:
|
Tester Connection |
Specified Condition |
|---|---|
|
2 - Body ground |
Continuity |
If circuit is not as specified, inspect power source or wire harness.
|
|