Service Manual (KLZ1000C) — page 637 of 762

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SELF-DIAGNOSIS SYSTEM 17-35
Intake Air Pressure Sensor #2 (Service Code 16) (DTC P2226, P2227, P2228)
Intake Air Pressure Sensor #2 Input Voltage
Inspection
                             NOTE
    ○Be sure the battery is fully charged.
• Turn the ignition switch off.
• bracket (see
  Remove    the intake air pressure sensor #2 from the
                   Intake Air Pressure Sensor #2 Re-
    moval(17-34)).
•   Disconnect the intake air pressure sensor #2 connector
    and connect the measuring adapter [A] between these
    connectors.
     Main Harness [B]
     Intake Air Pressure Sensor #2 [C]
    Special Tool - Measuring Adapter: 57001-1700
• Connect
  leads.
          a digital meter [D] to the measuring adapter

    Intake Air Pressure Sensor #2 Input Voltage
       Connections to Adapter:
        Digital Meter (+) → R (sensor BL) lead
        Digital Meter (–) → BK (sensor G) lead

• Measure   the input voltage with the engine stopped and
  with the connector joined.
• Turn the ignition switch on.
    Input Voltage
      Standard: DC 4.75  5.25 V

• Turn   the ignition switch off.
  If the reading is within the standard, check the output volt-
    age (see Intake Air Pressure Sensor #2 Output Voltage
    Inspection(17-36)).
 If the reading is out of the standard, remove the ECU and
 check the wiring for continuity between harness connec-
 tors.
○Disconnect the ECU and sensor connectors.
    Wiring Continuity Inspection
     ECU Connector [A] ←→
        Intake Air Pressure Sensor #2 Connector [B]
          ECU Terminal 22 [C] ←→ Sensor Terminal [D]
          ECU Terminal 16 [E] ←→ Sensor Terminal [F]
    If the wiring is good, check the ECU for its ground and
    power supply (see ECU Power Supply Inspection(3-39)).
    If the ground and power supply are good, replace the
    ECU.