TSRM/MK4 Supra/Repair Manual
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BE/Body Electrical Systems — Service Specifications Service Data, page 201

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p.202
Service Specifications Service Data — MK4 Supra Body Electrical Systems, page 201
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Page text (OCR transcript)
BE–201
BODY ELECTRICAL SYSTEM – SERVICE SPECIFICATIONS

SERVICE SPECIFICATIONS
SERVICE DATA

INTEGRATION RELAY (Light Auto Cut System)
    B2 – Ground (Constant)                                          Battery positive voltage
    B3 – Ground (Constant)                                          Battery positive voltage
    A7 – Ground (Ignition SW position LOCK or ACC)                  No voltage
    A7 – Ground (Ignition SW position ON)                           Battery positive voltage
    A1 – Ground (Constant)                                          Battery positive voltage

DAYTIME RUNNING LIGHT MAIN RELAY (Wire Harness Side)
    2 – Ground (Ignition SW position LOCK or ACC)                   No voltage
    2 – Ground (Ignition SW position ON)                            Battery positive voltage
    11 – Ground (Engine stop)                                       No voltage
    11 – Ground (Engine running)                                    Battery positive voltage
    15 – Ground (Constant)                                          Battery positive voltage
    17 – Ground (Constant)                                          Battery positive voltage

TURN SIGNAL FLASHER
    Flashes/Minute                                                  60 – 120

INTEGRATION RELAY (Interior Light System)
    9 – Ground (Ignition SW position LOCK or ACC)                   No voltage
    9 – Ground (Ignition SW position ON)                            Battery positive voltage
    1 – Ground (Constant)                                           Battery positive voltage

SPEEDOMETER (USING A SPEEDOMETER TESTER)
    Standard indication (mph)                                       Allowable range (mph)
    20                                                              18 – 24
    40                                                              38 – 44
    60                                                              58 – 66
    80                                                              78 – 88
    100                                                             98 – 110
    120                                                             118 – 132

    Standard indication (km/h)                                      Allowable range (km/h)
    20                                                              17 – 24
    40                                                              38 – 46
    60                                                              57.5 – 67
    80                                                              77 – 88
    100                                                             96 – 109
    120                                                             115 – 130
    140                                                             134 – 151.5
    160                                                             153 – 173