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                                                                                                                            BE-47
                                      BODY ELECTRICAL          -     COMBINATION METER
                                                                                                                            BE1FA-01


                                                   INSPECTION
                                                   1.    Connector connected:
                                                         INSPECT COMBINATION METER CIRCUIT
                                                   Connect the connector "A" and "B" to the combination meter
                                                   and inspect the wire harness side connectors from the back
                                                   side as shown in the table.




                            Connector "A"                                              Connector "B"




                                                                                                                              I12360




        Tester connection                                Condition                                    Specified condition
          A1 - Ground              Constant                                            Battery positive voltage
          A2 - Ground              Ignition switch OFF                                 No voltage
          A2 - Ground              Ignition switch ON                                  Battery positive voltage
          A3 - Ground              Ignition switch ON and O/D off switch ON            No voltage
          A3 - Ground              Ignition switch ON and O/D off switch OFF           Battery positive voltage
          A4 - Ground              Light control switch OFF                            No voltage
          A4 - Ground              Light control switch HI                             Battery positive voltage
          A5 - Ground              Ignition switch OFF, LOCK or ACC                    No voltage
          A5 - Ground              Ignition switch ST                                  Battery positive voltage
                                   Ignition switch ON and
          A6 - Ground                                                                  No voltage
                                   turn signal switch OFF or LEFT

                                   Ignition switch ON and
          A6 - Ground                                                                  Battery positive voltage
                                   turn signal switch RIGHT
                                   Ignition switch ON and window washer level
          A9 - Ground                                                                  No voltage
                                   warning switch float DOWN

                                   Ignition switch ON and window washer level
          A9 - Ground                                                                  Battery positive voltage
                                   warning switch float UP

                                   Ignition switch ON and driver's seat belt is
          A11 - Ground                                                                 No voltage
                                   unfastened

                                   Ignition switch ON and driver's seat belt is
          A11 - Ground                                                                 Battery positive voltage
                                   fasted
          A12 - Ground             Ignition switch ON and driver door is opened        No voltage
          A12 - Ground             Ignition switch ON and driver door is closed        Battery positive voltage

2002 ECHO (RM884U)

                                                                            Author :                   Date :                1250
BE-48
                            BODY ELECTRICAL             -    COMBINATION METER


          A13 - Ground   Ignition switch ON and passenger door is opened         No voltage
          A13 - Ground   Ignition switch ON and passenger door is closed         Battery positive voltage
          A14 - Ground   Constant                                                Continuity
          A17 - Ground   Constant                                                Continuity
                         Ignition switch ON and
          A18 - Ground                                                           0.3 - 0.6 V
                         fuel sender gauge float UP

                         Ignition switch ON and
          A18 - Ground                                                           4.9 - 6.9 V
                         fuel sender gauge float DOWN
          A19 - Ground   Ignition switch ON and slowly move the wheel            4.5 - 5.5 V
          A20 - Ground   Ignition switch ON and slowly move the wheel            Battery positive voltage
          A21 - Ground   Key unlock warning switch ON (Key is inserted)          No voltage
                         Key unlock warning switch OFF
          A21 - Ground                                                           Battery positive voltage
                         (Key is removed)
                         Ignition switch ON and passenger's seat belt is
          A22 - Ground                                                           No voltage
                         unfastened

                         Ignition switch ON and passenger's seat belt is
          A22 - Ground                                                           Battery positive voltage
                         fasted

                         Ignition switch ON and rheostat light control vol-
          B2 - Ground                                                            No voltage
                         ume CANCEL position

                         Ignition switch ON and rheostat light control vol-
          B2 - Ground                                                            Battery positive voltage
                         ume maximum
          B4 - Ground    Light control switch OFF                                No voltage
          B4 - Ground    Light control switch TAIL or HEAD                       Battery positive voltage
                         Ignition switch ON and engine coolant tempera-
          B5 - Ground                                                            No voltage
                         ture HOT (Red) warning light light up

                         Ignition switch ON and engine coolant tempera-
          B5 - Ground                                                            Battery positive voltage
                         ture HOT (Red) warning light does not light up
                         Ignition switch ON and engine coolant tempera-
          B6 - Ground                                                            No voltage
                         ture COOL (Blue) warning light light up

                         Ignition switch ON and engine coolant tempera-
          B6 - Ground                                                            Battery positive voltage
                         ture COOL (Blue) warning light does not light up

                         Ignition switch ON and
          B7 - Ground                                                            No voltage
                         engine oil level warning light up

                         Ignition switch ON and
          B7 - Ground                                                            Battery positive voltage
                         engine oil level warning does not light up
          B8 - Ground    Ignition switch ON and engine is stopped                No voltage
          B8 - Ground    Ignition switch ON and engine is running                Battery positive voltage
          B11 - Ground   Constant                                                Continuity
          B12 - Ground   Ignition switch OFF                                     No voltage
          B12 - Ground   Ignition switch ON                                      Battery positive voltage
          B13 - Ground   Ignition switch ON and engine is stopping               No voltage
          B13 - Ground   Ignition switch ON and engine is running                Battery positive voltage
                         Ignition switch ON and
          B14 - Ground                                                           No voltage
                         SRS indicator light light up
                         Ignition switch ON and
          B14 - Ground                                                           Battery positive voltage
                         SRS indicator does not light up

                         Ignition switch ON,
          B15 - Ground   parking brake lever is released and                     No voltage
                         brake fluid level warning switch float DOWN

2002 ECHO (RM884U)

                                                                      Author :                     Date :   1251
                                                                                                                                 BE-49
                                           BODY ELECTRICAL          -   COMBINATION METER


                                        Ignition switch ON,
             B15 - Ground               parking brake lever is released and                    Battery positive voltage
                                        brake fluid level warning switch float UP
                                        Ignition switch ON and
             B16 - Ground                                                                      No voltage
                                        turn signal switch OFF or RIGHT
                                        Ignition switch ON and
             B16 - Ground                                                                      Battery positive voltage
                                        turn signal switch LEFT

             B17 - Ground               Ignition switch ON and ABS is error                    No voltage
             B17 - Ground               Ignition switch ON and ABS is normal                   Battery positive voltage
                                        Ignition switch ON and
             B18 - Ground                                                                      No voltage
                                        passenger's seat belt warning light up
                                        Ignition switch ON and
             B18 - Ground                                                                      Battery positive voltage
                                        passenger's seat belt warning does not light up

                                                        If circuit is not as specified, wiring diagram and inspect the cir-
                                                        cuits connected to other parts.




                                                        2.    INSPECT SPEEDOMETER ON-VEHICLE
                                                        Using a speedometer tester, inspect the speedometer for allow-
                                                        able indication error and check the operation of the odometer.
                                                        HINT:
                                                        Tire wear and tire over or under inflation will increase the indica-
                                                        tion error.
                            USA (mph)                                                                  CANADA (km/h)
Standard indication                                     Allowable range      Standard indication                          Allowable range
20                                                                 18 - 24   20                                                  17 - 24
40                                                                 38 - 44   40                                                  38 - 46
60                                                                 58 - 66   60                                                 57.5 - 67
80                                                                 78 - 88   80                                                  77 - 88
100                                                               98 - 110   100                                                96 - 109
                                                                             120                                               115 - 130
                                                                             140                                             134 - 151.5
                                                                             160                                               153 - 173
                                                        If error is excessive, replace the speedometer.




2002 ECHO (RM884U)

                                                                                    Author :                   Date :              1252
BE-50
                                              BODY ELECTRICAL        -   COMBINATION METER

                                                        3.       INSPECT VEHICLE SPEED SENSOR OPERATION
                                                        (a)      Connect the positive (+) lead from battery to terminal 1
                                                                 and negative (-) lead to terminal 2.
                   3
                                                        (b)      Connect the positive (+) lead from tester to terminal 3 and
                                     1                           the negative (-) lead to terminal 2.
                                                        (c)      Rotate the shaft.
                                                        (d)      Check that there is voltage change from approx. 0 V to 11
                        2
                                                                 V or more between terminals 2 and 3.
                                               N02332   HINT:
                                                        The voltage change should be 4 times for every revolution of
                                                        the speed sensor shaft.
                                                        If operation is not as specified, replace the sensor.




                                                        4.       INSPECT FUEL RECEIVER GAUGE OPERATION
            Fuel Receiver Gauge
 Ignition                                               (a)      Disconnect the connector from the sender gauge.
 Switch                                                 (b)      Turn the ignition switch ON, check that the receiver gauge
                                                                 needle indicates EMPTY.
        Wire Harness
        Side         Fuel
                     Sender
    Battery
                     Gauge

                                               I12367



             Fuel Receiver Gauge                        (c)      Connect terminals 2 and 3 on the wire harness side con-
 Ignition Switch                                                 nector through a 3.4 W test bulb.
                                      3.4 W
                                      test              (d)      Turn the ignition switch ON, check that the bulb lights up
                                      bulb                       and the receiver gauge needle moves towards the full
                                                                 side.
                             Wire Harness
        Battery              Side
                                                        HINT:
                                     1 2 3              Because of the silicon oil in the gauge, it will take a short time
                                     4 5                for needle to stabilize.
                                               I00844   If operation is not as specified, inspect the receiver gauge resis-
                                                        tance.
                                                        5.     INSPECT FUEL SENDER GAUGE RESISTANCE
                                 3              2       Measure the resistance between terminals 2 and 3 for each
                                                        float position.
                                                                    Float position mm (in.)           Resistance ()
                             F
                       1/2                                    F: Approx. 83.8 (3.30) 



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