Check Chart 10

Check Chart 10: Horn Activation Circuit:

10. HORN ACTIVATION CIRCUIT

Description of Operation
The ECU transistor is turned ON if the vehicle door, etc. are opened without use of the key.This energizes the horn relay to activate the horn.

Check Chart 10: Check Object Table:

Checking the horn activation circuit (Disconnect the connector of the ECU, then short-circuit terminal connector No.58, and activate the horn relay.)