Hazard Warning Switch: Inspection

WARNING: This page is about a different car, the 2006 Lexus IS 350 and 2006 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT INTEGRATION CONTROL PANEL (Without Navigation System)

Measure the resistance of the integration control panel.

Standard resistance

SPECIFIED CONDITION AND TESTER CONNECTION

Tester Connection	Switch Condition	Specified Condition
J54-12 (F) - J54-8 (E)	Hazard warning switch OFF	10 k ohms or higher
J54-12 (F) - J54-8 (E)	Hazard warning switch ON	Below 1 ohms

Fig 1: Inspecting Integration Control Panel (Without Navigation System)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, replace the integration control panel.

INSPECT CLOCK ASSEMBLY (With Navigation System)

Measure the resistance of the clock assembly.

Standard resistance

SPECIFIED CONDITION AND TESTER CONNECTION

Tester Connection	Switch Condition	Specified Condition
J53-12 (F) - J53-2 (E)	Hazard warning switch OFF	10 k ohms or higher
J53-12 (F) - J53-2 (E)	Hazard warning switch ON	Below 1 ohms

Fig 2: Inspecting Clock Assembly (With Navigation System)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, replace the clock assembly.