Service Manual (KLZ1000C) — page 660 of 762

Self-Diagnosis System › Amplifier Input Voltage Inspection
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17-58 SELF-DIAGNOSIS SYSTEM
Immobilizer Amplifier (Service Code 35, Equipped Models) (DTC P1507)
Antenna Resistance Inspection
• Turn the ignition switch off.
• Remove:
   Left Inner Middle Fairing (see Inner Middle Fairing Re-
     moval(15-15))
•   Slide the dust cover [A].
•   Disconnect the antenna lead connector [B].
•   Measure the antenna resistance.
    Antenna Resistance
      Connections: BK lead ←→ BK/W lead
      Standard: About 3.0  4.6 Ω
    If the reading is out of the standard, replace the ignition
    switch (see Immobilizer System Parts Replacement(16
    -107)).
    If the reading is within the standard, check the wiring to
    the amplifier (see Immobilizer System Circuit(17-59)).
    If the wiring is good, check the input voltage of the ampli-
    fier (see Amplifier Input Voltage Inspection(17-58)).
Amplifier Input Voltage Inspection
                              NOTE
    ○Be sure the battery is fully charged.
• Turn the ignition switch off.
• Remove:
   Left Inner Middle Fairing (see Inner Middle Fairing Re-
  moval(15-15))
•Remove the immobilizer amplifier [A] from the bracket.
○Do not disconnect the immobilizer amplifier connector [B].
•Connect a digital meter to the amplifier connector with
 needle adapter set.
    Special Tool - Needle Adapter Set: 57001-1874

    Amplifier Input Voltage
     Connections to Amplifier Connector:
        Digital Meter (+) → BR/W lead
        Digital Meter (–) → BK/Y lead

• Measure   the input voltage with the engine stopped and
  with the connector joined.
• Turn the ignition switch on.
      Input Voltage
        Standard: Battery Voltage

• Turn   the ignition switch off.
  If the reading is out of the standard, check the wiring (see
    Immobilizer System Circuit(17-59)).
    If the reading is within the standard, check the wiring to
    ECU (see Immobilizer System Circuit(17-59)).
    If the wiring is good, replace the immobilizer amplifier (see
    Immobilizer System Parts Replacement(16-107)).