Terminal 4 - Body Ground
Press
Less than 1 Ω
Is the resistance specified value?
Yes
No
Step 6
Repair clock spring open circuit.
(a)
Repair the open circuit between the clock spring harness
connector IP22 terminal No.4 and the horn switch harness
connector terminal No.1.
(b)
If necessary, replace the clock spring.
Is horn working properly?
Yes
System normal
No
Step 7
Check the horn relay.
1 2
3
8
7
6
5
4
To I/P Fuse Block 3 Harness
Connector IP10
FE11-6202b
(a)
Press the horn switch.
(b)
Measure the I/P fuse block wiring harness connector IP10
terminal No.8 voltage with a multimeter.
Standard Voltage: 11-14 V
Yes
No
Step 8
Replace the I/P fuse block.
(a)
Check whether there is a short circuit.
(b)
Repair the circuits. Confirm that there are no short circuits.
(c)
Replace the I/P fuse block.
Is horn working properly?
Yes
System normal
No
Step 9
Check the horn power supply circuit.
(a)
Press the horn button.
(b)
Measure the horn harness connector terminal No.1 voltage
with a multimeter.
11-456
Horn
Body Electric
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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