DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK MULTIPLEX COMMUNICATION SYSTEM
PERFORM ACTIVE TEST BY INTELLIGENT TESTER
READ VALUE OF INTELLIGENT TESTER
CHECK SATELLITE SWITCH
LIGHTING SYSTEM - AFS OFF Switch Circuit
DESCRIPTION
The AFS OFF switch uses the multiplex communication system. First make sure that the multiplex communication system is functioning normally before performing troubleshooting on the AFS OFF switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK MULTIPLEX COMMUNICATION SYSTEM |
Refer to how to proceed with troubleshooting .
If the multiplex communication system is operating normally, proceed to the next step.
| 2.PERFORM ACTIVE TEST BY INTELLIGENT TESTER |
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester main switch on.
Select the item(s) below in the ACTIVE TEST, and check the operation.
ACTIVE TEST: Meter| Item | Test Details | Diagnostic Note |
| AFS Indicator | AFS OFF indicator light OFF / ON | - |
- OK:
- AFS OFF indicator comes on.
| | GO TO COMBINATION METER SYSTEM |
|
|
| 3.READ VALUE OF INTELLIGENT TESTER |
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester main switch on.
Select the item below in the DATA LIST, and read its value displayed on the intelligent tester.
DATA LIST: AFS (AFS ECU)| Item | Measurement / Range (Display) | Normal Condition | Diagnostic Note |
| AFS OFF Switch | AFS ON / OFF setting | ON: AFS OFF
OFF: AFS ON | - |
Check the operation speed of the satellite switch and the tach indicator system.
- OK:
- Tach indicator system operates normally.
| | GO TO COMBINATION METER SYSTEM |
|
|
| OK | |
| |
| PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE |
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LEXUS IS250, IS220d / GSE20 ALE20