| Last Modified: 7-3-2017 | 6.8:8.0.40 | Doc ID: RM000001A6D007X |
| Model Year Start: 2007 | Model: LX470 | Prod Date Range: [08/2006 - ] |
| Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: ABS Warning Light Remains ON; 2007 MY LX470 [08/2006 - ] | ||
|
ABS Warning Light Remains ON |
DESCRIPTION
When checking for a 2 digit DTC, the ABS warning light may remain on.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
INSPECT SKID CONTROL ECU CONNECTOR |
(a) Check that each ECU connector is properly installed.
OK:
Each ECU connector is properly installed.
| NG |
|
|
|
2. |
CHECK FOR DTC |
(a) Turn the ignition switch ON.
(b) Check that the ABS warning light illuminates.
(c) Check if the same DTCs are recorded.
Result:
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
|
DTC is output |
B |
| B |
|
|
|
3. |
CHECK ABS WARNING LIGHT REMAINS ON |
| NG |
|
|
|
4. |
INSPECT BATTERY |
Result:
|
Result |
Proceed to |
|---|---|
|
Battery voltage is OK (when using intelligent tester) |
A |
|
Battery voltage is OK (when not using intelligent tester) |
B |
|
Battery voltage is NG |
C |
| B |
|
| C |
|
|
|
5. |
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (ABS WARNING LIGHT) |
(a) Select the ACTIVE TEST, generate a control command, and then check that the ABS warning light operates.
Skid control ECU assembly
|
Item |
Vehicle Condition/Test Details |
Diagnostic Note |
|---|---|---|
|
ABS WARN LIGHT |
Turn ABS warning light ON / OFF |
Observe combination meter |
OK:
ABS warning light turns on or off.
| OK |
|
|
|
6. |
CHECK ABS WARNING LIGHT |
(a) Disconnect the A40 ECU connector.
(b) Turn the ignition switch ON.
(c) Using a service wire, connect terminal WA to GND3 or GND4 of the A40 ECU connector. Check the ABS warning light.
OK:
ABS warning light turns off.
(d) Turn the ignition switch OFF.
(e) Remove the service wire.
(f) Turn the ignition switch ON. Check the ABS warning light.
OK:
ABS warning light illuminates.
| OK |
|
|
|
7. |
CHECK WIRE HARNESS (SKID CONTROL ECU ASSEMBLY - COMBINATION METER) |
| NG |
|
| OK |
|
|
|