Test the horn by connecting battery voltage to the 1 terminal and ground the 2 terminal.
The horn should make a sound. If the horn fails to make a sound, replace it.
Horn Relay Inspection
1. |
Remove the horn relay (A) from the engine room relay box. |
2. |
There should be continuity between the No.30 and No.87
terminals when power and ground are connected to the No.85 and No.86
terminals. |
3. |
There should be no continuity between the No.30 and No.87 terminals when power is disconnected. 

|
1. |
Remove the radiator grill upper gide.
|
2. |
Remove the mounting nut and disconnect the horn connector, then remove the high pitch horn (A) and low pitch horn (B). 
|
1. |
Connect the horn connector, then reassemble the horn. |
2. |
Reassemble the radiator grill upper gide. |
Operate the horn, and adjust the tone to a suitable level by turning the adjusting screw.
After adjustment, apply a small amount of paint around the screw head to keep it from loosening. |

Component Location
1. Horn switch2. Horn relay (Engine room compartment)3. Horn - High pitch4. Horn - Low pitch5. Clock spring
...
See also:
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deterioration. Particular atten ...
Low tire pressure telltale
...
Schematic Diagrams
Circuit Diagram (1)
Circuit Diagram (2)
Circuit Diagram (3)
SRSCM Connector terminal
Pin Function (Connector A)Pin Function (Connector B)1Ignition1Seat belt pretensioner [Driver] Hig ...