Horn Relay: Inspection

INSPECT FUSE
1. Measure the resistance of the HORN fuse.
  Standard resistance:
  
  Below 1 Ω
  
  If the result is not as specified, replace the fuse.
  
  Fig 1: Measuring Resistance Of Horn Fuse
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT RELAY

Remove the HORN relay from the engine room R/B.

Measure the resistance of the relay.

Standard resistance

RELAY

Tester Connection	Specified Condition
3 - 5	10 kΩ or higher
3 - 5	Below 1 Ω (when battery voltage is applied to terminals 1 and 2)

If the result is not as specified, replace the relay.

Fig 2: Inspecting Horn Relay

G05196223

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002