Inspection Procedure
WARNING: This page is about a different car, the 2006 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- READ VALUE OF INTELLIGENT TESTER
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch on (IG) and turn the intelligent tester main switch on.
- Select the items below in the DATA LIST, and read the displays on the intelligent tester.COMBINATION SWITCH ECU CONDITION CHART
Item Measurement Item / Display (Range) Normal Condition Diagnostic Note DIMMER SW Headlight dimmer SW signal / ON or OFF ON: Headlight dimmer switch is in the HI or FLASH position
OFF: Headlight dimmer switch is in the LO position- HIGH FLASHER SW Headlight dimmer SW signal / ON or OFF ON: Headlight dimmer switch is in the FLASH position
OFF: Headlight dimmer switch is in except the FLASH position- F FOG LIGHT SW Front fog light SW signal / ON or OFF ON: Front fog light switch is in the ON position
OFF: Front fog light switch is in the OFF position- AUTO LIGHT SW Auto light SW signal / ON or OFF ON: Headlight dimmer switch is in the AUTO position
OFF: Headlight dimmer switch is in except the AUTO position- HEAD LIGHT SW Headlight control SW signal / ON or OFF ON: Light control switch is in the HEAD position
OFF: Light control switch is in except the HEAD position- TAIL LIGHT SW Tail light SW signal / ON or OFF ON: Light control switch is in the TAIL or HEAD position
OFF: Light control switch is in the OFF position-
NG: Go to step 2
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
- INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY
- Inspect headlight dimmer switch assembly (See INSPECTION ).
OK:
Headlight dimmer switch assembly is normal.
NG: REPLACE HEADLIGHT DIMMER SWITCH ASSEMBLY
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
- Inspect headlight dimmer switch assembly (See INSPECTION ).