Page 2330 - Foton Workshop Manual - Aumark (BJ1099)

62-278 DIAGNOSIS-HORN SYSTEM

Is the result normal?
Yes>To step 6.
No >Repair or replace the harness.

6. Check the harness and the connector (horn relay-BCM control unit)

(a). Ignition switch:"LOCK".
(b). Remove the horn relay R13.

(c). Disconnect the BCM control unit connector
C57.

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(d). Measure the resistance with the multimeter
R13
on the resistance range.
OFF T.S 3
Standard resistance: (check whether there
5
C57 is an open circuit)
1 4 2

Ω Connect the pin by
7 6 5 4 3 2 1 pmultimeter Standard value
23 22 21 20 19 18 17
R13(2)- C57(18) ＜ 2 Ω
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Is the result normal?
Yes>Replace the BCM control unit.
No >Repair or replace the harness.

Page 2330