| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Vehicle Interior | Section: Theft Deterrent/Keyless Entry | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000000YA202QX |
| Title: THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function): DESCRIPTION (2008 LX570) | ||
|
Engine Switch Indicator Circuit |
DESCRIPTION
The engine switch condition (power source mode) or system malfunctions can be checked by observing the status of the engine switch indicator light.
Engine Switch Indicator Light Condition
|
Power Source Mode/Condition |
Indicator Light Condition |
|
|---|---|---|
|
Brake Pedal Released |
Brake Pedal Depressed, Shift Lever in P |
|
|
Off |
Off |
Illuminates (green) |
|
On (ACC), on (IG) |
Illuminates (amber) |
Illuminates (green) |
|
Engine running |
Off |
Off |
|
Steering lock not unlocked |
Flashes (green) for 30 seconds |
Flashes (green) for 30 seconds |
|
System malfunction |
Flashes (amber) for 15 seconds |
Flashes (amber) for 15 seconds |
|
Stop light switch malfunction with shift lever in P |
Flashes (green) for 15 seconds |
Flashes (green) for 15 seconds |
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
INSPECT ENGINE SWITCH |
(a) Disconnect the E18 engine switch connector.
(b) Apply battery voltage to the terminals of the engine switch, and check the illumination condition of the engine switch indicator light.
NOTICE:
- If the positive (+) lead and the negative (-) lead are incorrectly connected, the engine switch indicator light will not illuminate.
- If the voltage is too low, the indicator light will not illuminate.
OK:
|
Measurement Condition |
Condition |
Specified Condition |
|---|---|---|
|
Battery terminal (+) → Terminal 11 (SWIL) - Battery terminal (-) → Terminal 5 (GND) |
Battery voltage is applied to the terminals |
Illuminates |
|
Battery terminal (+) → Terminal 12 (INDS) - Battery terminal (-) → Terminal 5 (GND) |
||
|
Battery terminal (+) → Terminal 13 (INDW) - Battery terminal (-) → Terminal 5 (GND) |
|
|
2. |
CHECK HARNESS AND CONNECTOR (ENGINE SWITCH - MAIN BODY ECU AND BODY GROUND) |
(a) Disconnect the E1 main body ECU connector.
(b) Disconnect the E18 engine switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E1-25 (SWIL) - E18-11 (SWIL) |
Always |
Below 1 Ω |
|
E1-15 (INDS) - E18-12 (INDS) |
Always |
Below 1 Ω |
|
E1-14 (INDW) - E18-13 (INDW) |
Always |
Below 1 Ω |
|
E18-5 (GND) - Body ground |
Always |
Below 1 Ω |
|
E1-25 (SWIL) or E18-11 (SWIL) - Body ground |
Always |
10 kΩ or higher |
|
E1-15 (INDS) or E18-12 (INDS) - Body ground |
Always |
10 kΩ or higher |
|
E1-14 (INDW) or E18-13 (INDW) - Body ground |
Always |
10 kΩ or higher |
|
|
|