Inspection Procedure
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC
- Check if DTC B1244 is output (See
DIAGNOSTIC TROUBLE CODE CHART
)
Result
RESULT CHARTResult Proceed to B1244 is not output A B1244 is output B
B: GO TO LIGHTING SYSTEM (See DTC B1244 LIGHT SENSOR CIRCUIT MALFUNCTION )
A: Go to next step
- Check if DTC B1244 is output (See
DIAGNOSTIC TROUBLE CODE CHART
)
- PERFORM ACTIVE TEST USING TECHSTREAM (DIMMER SIGNAL)
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG)
- Turn the Techstream on.
- Turn the light control rheostat to the TAIL or HEAD position
- Enter the following menus. Body Electrical / Body (Main Body ECU RH) / Active Test.
- Check the meter illumination
Body (Main Body ECU RH)
DIAGNOSTIC NOTETester Display Test Part Normal Condition Diagnostic Note Dimmer Signal Dimmer signal ON or OFF OFF The meter illumination (warning and indicator lights) will not dim even if the light control switch to the TAIL or HEAD position ON The meter illumination (warning and indicator lights) dim when the light control switch to the TAIL or HEAD position OK: The meter illumination is dimmed when the dimmer signal is ON.
HINT.
Meter illumination is adjusted by lighting system and controlled according to the outside light. The automatic light control sensor sensitiveness can be customized Therefore, when the Data List value is normal, confirm the sensitivity setting in the customization table of the automatic light control system. (See CUSTOMIZE PARAMETERS )
NG: Go to step 3
OK: CHECK LIGHTING SETTING (See CUSTOMIZE PARAMETERS )
- REPLACE COMBINATION METER
- Replace the combination meter with a new or a known good one (See REMOVAL
)
OK: The operation of the combination meter returns to normal.
NG: REPLACE MAIN BODY ECU RH
OK: END
- Replace the combination meter with a new or a known good one (See REMOVAL
)