Page 2328 - Foton Workshop Manual - Aumark (BJ1099)
P. 2328

62-276                             DIAGNOSIS-HORN SYSTEM


           3.        Check the horn


           (a).     Ignition switch:"ON".


                                                       (b).    Check  whether  the  appearance  of  the
                                                              compound horn is intact and whether the
                                                              horn harness connector is connected
                                                              tightly.
                                                       (c).     Disconnect the connector of the compound
                                                              horn.












                                           fuwx62 770


                                                       (d).  While pressing down the horn switch,
                                                              check  the  voltage  between  the  No.1
                                                              terminal of the horn connector A36 and A37
                                                              and the grounding.
                                                              voltage:

                                                               Connect the pin by       Standard value
                                                                   multimeter
                                                                 A36(1)- Grounding
                                                                                           Battery volt
                                                                 A37(1)- Grounding

           Is the result normal?
           Yes >Replace the horn.
           No >Check the circuit between the No.5 pin of the horn relay in the fuse box of engine
                   chamber and the horn connector, and if it is normal, go to Step 4.


           4.        Check the horn switch


           (a).     Ignition switch:"LOCK",disconnect the battery.
           (b).   Remove ABRS (Air Bag Restraint System).
           (c).    Check whether the horn switch contact is in good contact without distortion.
           (d).   Connect battery negative cable and check the voltage between the horn switch
                  connector on the steering wheel and the grounding with the multimeter. The voltage
                  is the one of battery.







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