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 "ON" 2. Manually operate the control switch and measure the voltage of blower motor. 3. Select the control switch to raise voltage until high speed. Specification FanMotor VoltageManualFirst speed3.8 ±0.5VSecond speed5.