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Discussion Starter #1
Does anyone here know who to pull a check engine light code on the KRX 1000?

I am getting a check engine light when crossing thru water that is about 5-6 inches above the floor. If conditions are warm and dry, the light goes off after an hour or so.
 

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check out the posting LIMP MODE a few days earlier... sounds like the same issue..
maybe the plug under the rear console to the calif emission canister that you probably don't have..
 

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this is the procedure for self diagnostic by using the buttons on the side of the speedo 3a is the fuel canister plug that is just laying on the floor on non cali units..
419

Turn the ignition switch on.
Make sure the yellow engine warning indicator light (LED) goes off. OK
Run the engine for several minutes at idling and run the vehicle at 30 km/h (18 mph) or above in order to confirm no problem.
OK
( _ _ _ E _ N o_ _ _ )
NG
NG
IC15563B F
421

Self-Diagnosis
Service Code Reading
OThe service code(s) is displayed on the LCD by two-digit number or a set of a number and an al- phabet.
OWhen there are a number of problems, all the service codes can be stored and the display will begin starting from the lowest number service code in the numerical order.
OThen after completing all codes, the display is repeated until the ignition switch is turned off or upper button is pushed for more than two seconds.
OFor example, if three problems occurred in the order of 56, 13, 31, the service codes are displayed (each two seconds) from the lowest number in the order listed as shown below. (13-+31-+56)-+(13-+31-+56)-+· · ·(repeated)
Olf there is no problem or when the repair has been done, yellow engine warning indicator light (LED) goes off and the service code is not displayed.
Service Code Erasing
OWhen repair has been done, yellow engine warning indicator light {LED) goes off and the service codes are not displayed.
*The service codes stored in memory of the ECU can be erased using the Kawasaki Diagnostic System.
Service Code Table
Service Codes
11
12
13
14
18
21 24
25
27 31 33 39 46 49 51
DTC
(Diagnostic Problems
Trouble Code)
P0120
P0121
P0122 Throttle position sensor malfunction, wiring open or short P0220
P0223
P0105
P0106 Intake air pressure sensor malfunction, wiring open or short P0107
P0110
P0112
P0115
P0117
P2120
P2121
P2123 Accelerator position sensor malfunction, wiring open or short P2125
P2128
P0335 Crankshaft sensor malfunction, wiring open or short
P2158 Speed sensor malfunction, wiring open or short
P0914
P0917
P0500 Ring gear rotation sensor malfunction, wiring open or short C0064 Vehicle-down sensor malfunction, wiring open or short P0132 Oxygen sensor inactivation, wiring short
U0001 ECU communication error
P0627 Fuel pump relay malfunction, relay is stuck .
P2119 Return spring malfunction
P0351 Ignition coil #1 malfunction, wiring open or short
Intake air temperature sensor malfunction, wiring open or short
Water temperature sensor malfunction, wiring open or short
Gear position sensor malfunction, wiring open or short
FUEL SYSTEM (DFI) 3-43
422

3-44 FUEL SYSTEM (DFI) Self-Diagnosis
Service Codes
OTC {Diagnostic Trouble Code)
Problems
Ignition coil #2 malfunction, wiring open or short Radiator fan relay malfunction, wiring open or short ETV actuator malfunction, wiring open or short
Oxygen sensor heater malfunction, wiring open or short Battery monitor voltage is low
ECU/ETV circuit malfunction, wiring open or short 2WD/4WD/DIFF-LOCK actuator malfunction, wiring open or short Purge valve malfunction, wiring open or short (CAL Model)
52 P0352 56 P0480 58 P2100 67 P0030
  1. 97 P0562
  2. 98 P0607
2F P1701 3A P0443
Notes:
OThe ECU may be involved in these problems. If all the parts and circuits are 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.
OWhen 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.
ODTC (Diagnostic Trouble Code) is displayed on the Kawasaki Diagnostic System and the Generic Scan Tool (GST).
Backups
OThe ECU takes the following measures to prevent engine damage when the DFI or the ignition system parts have troubles.
Ser-
vice Codes
11
Parts or Function
Throttle Position Sensor
Output Signal Usable Range or Criteria
Output Voltage
(full throttle opening) (1) 4.4 - 4.6 V
(2) 0.4 - 0.6 V
Output Voltage 0.2 -4.8 V
Backups by ECU
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 two methods are set when failure occurs;
1. The ECU sets the DFI in the D-J method (*2) Only when both Throttle Position Sensor 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.
If the intake air pressure sensor system fails (the signal is out of the usable range, wiring short or open), two methods will be used.
1. The ECU sets the DFI in the a-N method (*3).
2.The ECU sets the intake air pressure at 760 mmHg.
12
Intake Air Pressure Sensor
424

Self-Diagnosis
Ser-
vice Codes
13
14
18
21
24
25
27
31
33
39
46
Parts or Function
Intake Air T emperature Sensor
Water
T emperature Sensor
Accelerator Position Sensor
Crankshaft Sensor
Speed Sensor
Gear Position Sensor
Ring Gear Rotation Sensor
Vehicle-down Sensor
Oxygen Sensor
ECU Communication Line
Fuel Pump Relay
Output Signal Usable Range or Criteria
Output Voltage 0.2 -4.6 V
Output Voltage 0.2 -4.8 V
Output Voltage at Idle (1) 0.7 - 0.9 V
(2) 0.7 - 0.9 V
The crankshaft sensor sends signals continuously to the ECU.
The speed sensor sends signals continuously to the ECU .
Output Voltage 0.2 - 4.8 V
The ring gear rotation sensor sends signals continuously to the ECU .
Output Voltage 0.2 - 4.8 V
Output Voltage 0 - 2.5 V
The ECU sends the data to the meter unit through the CAN communication line.
(1) When the relay ON condition, battery monitor voltage 5 V or more.
(2) When the relay OFF condition, battery monitor voltage less than
5 V.
Backups by ECU
If the intake air temperature sensor system fails (the signal is out of the usable range, wiring short or open), the ECU sets the intake air temperature at 40°C.
If the water temperature sensor system fails (the signal is out of the usable range, wiring short or open), the ECU sets the water temperature at 80°C and the radiator fan operates.
If accelerator position sensor 1 or 2 fails (the signal is out of usable range, wiring short or open), the ECU sets Limp Home Mode 1 (*1-1)
If both accelerator position sensor 1 and 2 fail (the signal is out of usable range, wiring short or open), the ECU sets Limp Home Mode 2 (*1-2).
If the crankshaft sensor fails, the engine stops by itself.
If the speed sensor system fails (the signal is missing, wiring open), the ECU regards gear position sensor output as internal gear position value.
If the gear position sensor system fails (no signal, wiring short or open), the ECU set the internal gear position value for the reverse.
-
If the vehicle-down sensor system fails (the output voltage is out of the usable range, wiring short or open), the ECU shuts off the fuel pump relay.
If the oxygen sensor system fails (the output voltage is out of the usable range, wiring short), the ECU stops the current to the heater, and it stops the feedback control with the oxygen sensor.
-
-
FUEL SYSTEM (DFI) 3-45
423

3-46 FUEL SYSTEM (DFI) Self-Diagnosis
Ser-
vice Codes
49
51
52
56
58
67
97
98
2F
3A
Parts or Function
Return Spring
Ignition Coil #1 *
Ignition Coil #2*
Radiator Fan Relay
ETV Actuator
Oxygen Sensor Heater
Battery
ETV Control Circuit
2WD/4WD/DIFF -LOCK Actuator
Purge Valve (CAL Model)
Output Signal Usable Range or Criteria
Throttle position sensor output voltage (default position of the throttle valve by learning function) 4 V or more
The ECU sends signals (output voltage) continuously to the ignition coil.
The ECU sends signals (output voltage) continuously to the ignition coil.
When the radiator fan relay is OFF, the relay is opened.
The actuator operates open and close of the throttle valve by the pulse signal from the ECU.
The oxygen sensor heater raises temperature of the sensor for its earlier activation.
The ECU monitors the battery voltage when the fuel pump operates.
Detection Voltage: less than 6.3 V
-
When actuator power supply is out of the usable range, the 2WD/4WD/DIFF -LOCK actuator is stop.
The purge valve controls the flow of the purge air for the canister and shutting the solenoid valve.
Backups by ECU
-
If the ignition coil #1 primary winding has failures (no signal, wiring short or open), the ECU shuts off the injector #1 to stop fuel to the cylinder #1, though the engine keeps running.
If the ignition coil #2 primary winding has failures (no signal, wiring short or open), the ECU shuts off the injector #2 to stop fuel to the cylinder #2, though the engine keeps running.
-
If the ETV actuator fails (the signal is out to the usable range, wiring short or open), the ECU stops the current to the actuator, and sets to the Limp Home Mode (*1 ).
-
If the ECU senses a battery failure (e.g. low battery voltage), the ECU sets to the Limp Home Mode (*1 ).
If the ETV control circuit fails (circuit voltage low or high), the ECU sets to the Limp Home Mode 3 (*1-3). When ETV control circuit failure is "ROM check error" or "ASIC error," the ECU continues self-reset and does not start.
If the 2WD/4WD/DIFF-LOCK actuator fails (wiring short or open), the ECU stops the current to the actuator.
If the purge valve fails (the ECU recognize the purge valve ON without the activation signal from the ECU), the ECU sets the duty rate for the purge valve 0% and sets internal control to Actuator Malfunction Backup Mode (*4).
420

Self-Diagnosis Note:
(*1)
Limp Home Mode: when parts related the ETV malfunctioned, backup methods are used in ECU control.
(*1-1) Limp Home Mode 1: Mode to press a rider for repair. Limit engine power to lower than that of when normal.
(*1-2) Limp Home Mode 2: Mode to restrict riding. The ECU does not accept throttle operation signals and considers the throttle is fully closed.
(*1-3) Limp Home Mode 3: Mode to evacuate to a repair shop. The ECU stops controlling the ETV and manages engine output by controlling fuel injection and ignition timing. Engine power is limited to lower than that of when normal.
D-J Method: When the engine load is light like at idling or low speed, the ECU determines the injection quantity by calculating from the throttle vacuum (intake air pressure sensor output voltage) and engine speed (crankshaft sensor output voltage). This method is called D-J method.
a-N Method: As the engine speed increases, and the engine load turns middle to heavy, the
 
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