Page 500 - Workshop Manual - Aumark (BJ1051)
P. 500

04-356
                                                    Diagnosis- combination meter

                                                                (b)     Disconnect connectors of low pressure
                                                                        alarms C027 and C037 on front and rear
                                                                        air reservoirs respectively.















   04




               Check if low pressure warning light goes out.
               Yes >   Replace with low pressure alarms that make low pressure warning light go out.
               No >    Go to step 2.
               2.     Checking for low pressure warning light signal circuit short
               (a)    Ignition switch: OFF.
                                                                (b)     Disconnect connector of combination
                                                                        meter B032.












                                                                (c)     Use a multimeter to measure resistances
                                                                        to ground of connector pins 1 of low
                                                                        pressure alarms C027 and C037
                                                                        respectively.
                                                                        Resistance: >1MΩ








               Are check results normal?
               Yes >   Replace combination meter assembly.
               No >    Repair signal line to ground short between connector pins 1 of low pressure alarms C027
                      and C037 and connector pin 18 of combination meter B032.












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