Inspection Lighting Switch Inspection With the multi function switch in each position, make sure that continuity exists between the terminals below.
Component Location 1. Horn switch2. Horn relay (Engine room compartment)3. Horn - High pitch4. Horn - Low pitch5. Clock spring
Inspection 1. Ignition "ON" 2. Using the scan tool. 3. Emit intensive light toward photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and reduce with lower intensive light.
Inspection 1. Ignition "OFF" 2. Disconnect ambient temperature sensor. 3. Check the resistance of ambient temperature sensor between terminals 1 and 2 whether it is changed by changing of the ambient temperature. 1. Sensor Ground2.