Service Manual (KLZ1000C) — page 615 of 762

Text on this page

SELF-DIAGNOSIS SYSTEM 17-13
Self-Diagnosis

            DTC
Service (Diagnostic
                           System                                 Problems
Codes     Trouble
           Code)
 E8E         –                 FI        IMU malfunction
 E8F         –                 FI        IMU communication error or wiring open
 Some DFI error has an effect on the Power Mode, KTRC, Cruise Control System function.

Notes:
○The ECU may be involved in these problems. If all the parts and circuits checked out good, be sure
 to check the ECU for ground and power supply. If the ground and power supply are checked good,
 replace the ECU.
○When no service code is displayed, the electrical parts of the DFI system has no fault, and the
 mechanical parts of the DFI system and the engine are suspect.
○DTC (Diagnostic Trouble Code) is displayed on the Kawasaki Diagnostic System and the Generic
 Scan Tool (GST).
Backups
○The ECU takes the following measures to prevent engine damage when the DFI, ignition, ETV or
 immobilizer system parts have troubles.
                                     Output Signal
 Service       Parts or
                                    Usable Range or                   Backups by ECU
 Codes         Function
                                        Criteria
                                                       If one of the throttle position sensor 1 or 2
                                                       fails (the signal is out of usable range, wiring
                                                       short or open), the ECU uses the other sensor
                                                       as throttle position input and set Limp Home
                                                       Mode 1 (*1-1).
                                                       If both throttle position sensor 1 and 2 fail, the
                                                       ECU stops current to the throttle actuator and
                                                       set Limp Home Mode 3 (*1-3).
                                                       No matter which failure situation is, following
                               Output Voltage
                                                       three methods are set when failure occurs;
           Throttle Position   (full throttle opening)
    11                                                 1. The ECU sets the DFI in the D-J method
           Sensor              (1) 4.4  4.6 V
                                                       (*2). Only when both throttle position sensor
                               (2) 0.4  0.6 V
                                                       1 and 2 fail, the ECU sets the DFI in the D-J
                                                       method.
                                                       2. ECU uses the learned middle position
                                                       value of the throttle position sensor 1 as a
                                                       throttle sensor output.
                                                       3. Air switching valve solenoid will be on.
                                                       In addition to these backup, all auxiliary
                                                       controls (Power Mode, KTRC, Cruise Control
                                                       System) will stop.
                                                       If the intake air pressure sensor #1 system
                                                       fails (the signal is out of the usable range,
                                                       wiring short or open), three method will be
                                                       used.
           Intake Air          Intake Air Pressure     1. The ECU sets the DFI in the α-N method
   12      Pressure Sensor     (Absolute)              (*3).
           #1                  Pv = 150  800 mmHg 2. The ECU sets MP at 760 mmHg.
                                                       3. Air switching valve solenoid will be on.
                                                       In addition to these backup, all auxiliary
                                                       controls (Power Mode, KTRC, Cruise Control
                                                       System) will stop.