NHTSA ID Number: 10109091
Manufacturer Communication Number: 99924-1509-03
TSB/Document Date: 2017-08-01
Summary
Service Manual
○Be sure the battery is fully charged.
the engine, and let it idle.
• Start
Apply
tip screwdriver [A] to the primary fuel injector
• [B]. Putthetheflatgrip
end onto your ear, and listen whether the
primary fuel injector is clicking or not.
○A sound scope can also be used.
○The click interval becomes shorter as the engine speed
rises.
Do the same for the other primary fuel injectors.
If all the primary fuel injectors click at a regular intervals,
the fuel injectors are normal.
Turn the ignition switch off.
If any primary fuel injector does not click, check the primary fuel injector resistance (see Primary Fuel Injector
Resistance Inspection).
•
•
Primary Fuel Injector Resistance Inspection
• Remove:
Air Cleaner Housing (see Air Cleaner Housing Removal
•
in the Fuel System (DFI) chapter)
Disconnect:
Primary Fuel Injector Connector [A]
a digital meter to the terminals in each primary
• Connect
fuel injector [A].
○If necessary, use the measuring adapter.
Special Tool - Measuring Adapter: 57001-1700
• Measure the primary fuel injector resistance.
Primary Fuel Injector Resistance
Standard:
About 11.7 12.3 Ω @20°C (68°F)
If the reading is out of the standard, replace the primary
fuel injector.
If the reading is within the standard, check the power
source voltage (see Primary Fuel Injector Power Source
Voltage Inspection).
Primary Fuel Injector Power Source Voltage
Inspection
NOTE
○Be sure the battery is fully charged.
17-84 SELF-DIAGNOSIS SYSTEM
Primary Fuel Injectors #1, #2, #3, #4 (Service Code 41, 42, 43, 44) (DTC P0201,
P0202, P0203, P0204)
the ignition switch off.
• Turn
Remove:
• Air Cleaner Housing (see Air Cleaner Housing Removal
•
in the Fuel System (DFI) chapter)
Disconnect the primary fuel injector connector and connect the measuring adapter [A] between these connectors as shown.
Subharness [B]
Primary Fuel Injector #1 [C]
Special Tool - Measuring Adapter: 57001-1700
a digital meter [D] to the measuring adapter
• Connect
leads.
Primary Fuel Injector Power Source Voltage
Connections to Adapter:
For Primary Fuel Injector #1, #2, #3, #4
Digital Meter (+) → R (injector W/R) lead
Digital Meter (–) → Battery (–) Terminal
the power source voltage with
• Measure
stopped.
the engine stop switch to run position.
• Turn
Turn
• the ignition switch on.
the engine
Power Source Voltage
Standard: Battery Voltage for 3 seconds, and then 0 V
the ignition switch off.
• Turn
If the reading stays on battery voltage and never shows 0
V, check the fuel pump relay (see Relay Circuit Inspection
in the Electrical System chapter).
If the fuel pump relay is normal, check the ECU for its
ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).
If there is still no battery voltage, check the fuel pump relay (see Relay Circuit Inspection in the Electrical System
chapter).
If the fuel pump relay is normal, check the power source
wiring (see Fuel Injector Circuit).
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).
If the reading is in specification, check the output voltage
(see Primary Fuel Injector Output Voltage Inspection).
SELF-DIAGNOSIS SYSTEM 17-85
Primary Fuel Injectors #1, #2, #3, #4 (Service Code 41, 42, 43, 44) (DTC P0201,
P0202, P0203, P0204)
Primary Fuel Injector Output Voltage Inspection
NOTE
○Be sure the battery is fully charged.
the ignition switch off.
• Turn
Remove:
• ECU (see ECU Removal in the Fuel System (DFI) chapter)
○Do not disconnect the ECU connectors.
a digital meter [A] to the connector [B] with the
• Connect
needle adapter set.
Special Tool - Needle Adapter Set: 57001-1457
Primary Fuel Injector Output Voltage
Connections to ECU Connector:
For Primary Fuel Injector #1
Digital Meter (+) → BL/BK lead (ECU terminal 20)
Digital Meter (–) → Frame Ground Terminal
For Primary Fuel Injector #2
Digital Meter (+) → BL/R lead (ECU terminal 8)
Digital Meter (–) → Frame Ground Terminal
For Primary Fuel Injector #3
Digital Meter (+) → BL/O lead (ECU terminal 2)
Digital Meter (–) → Frame Ground Terminal
For Primary Fuel Injector #4
Digital Meter (+) → BL/G lead (ECU terminal 4)
Digital Meter (–) → Frame Ground Terminal
the output voltage with the engine stopped and
• Measure
with the connector joined.
the engine stop switch to run position.
• Turn
Turn
• the ignition switch on.
Output Voltage
Standard: Battery Voltage for 3 seconds, and then 0 V
the ignition switch off.
• Turn
If the reading is in specification, check the ECU for its
ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).
17-86 SELF-DIAGNOSIS SYSTEM
Primary Fuel Injectors #1, #2, #3, #4 (Service Code 41, 42, 43, 44) (DTC P0201,
P0202, P0203, P0204)
If the reading is out of the specification, remove the ECU
and check the wiring for continuity between main and subharness connectors.
○Disconnect the ECU and injector connectors.
Wiring Continuity Inspection
ECU Connector [A] ←→ Primary Fuel Injector
Connector [B]
For Primary Fuel Injector #1
ECU Terminal 20 [C] ←→ Fuel Injector #1 Terminal
[D]
For Primary Fuel Injector #2
ECU Terminal 8 [E] ←→ Fuel Injector #2 Terminal
[D]
For Primary Fuel Injector #3
ECU Terminal 2 [F] ←→ Fuel Injector #3 Terminal
[D]
For Primary Fuel Injector #4
ECU Terminal 4 [G] ←→ Fuel Injector #4 Terminal
[D]
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).
Primary Fuel Injector Fuel Line Inspection
• Remove:
Fuel Tank (see Fuel Tank Removal in the Fuel System
(DFI) chapter)
Air Cleaner Housing (see Air Cleaner Housing Removal
in the Fuel System (DFI) chapter)
Disconnect:
Primary and Secondary Fuel Hoses (see Fuel Hose Replacement in the Periodic Maintenance chapter)
○Be sure to place a piece of cloth around the fuel outlet
pipe of the fuel pump and the delivery pipe of the throttle
body assy.
•
WARNING
Fuel is flammable and explosive under certain conditions and can cause severe burns. Be prepared
for fuel spillage; any spilled fuel must be completely
wiped up immediately. When the fuel hose is disconnected, fuel spills out from the hose and the
pipe because of residual pressure. Cover the hose
connection with a piece of clean cloth to prevent
fuel spillage.
SELF-DIAGNOSIS SYSTEM 17-87
Primary Fuel Injectors #1, #2, #3, #4 (Service Code 41, 42, 43, 44) (DTC P0201,
P0202, P0203, P0204)
the fuel injector fuel line for leakage as follows.
• Check
Connect
commercially available vacuum/pressure
• pump [A] toa the
nipple of the delivery pipe [B] with the
fuel hose [C] (both ends with the clamps [D]) as shown.
Connect the fuel hose [E] (both ends with the clamps [F])
between the delivery pipes of the throttle body assy and
nozzle assy [G] as shown.
○Apply soap and water solution to the areas [H] as shown.
○Watching the pressure gauge, squeeze the pump lever,
and build up the pressure until the pressure reaches the
maximum pressure.
•
Fuel Injector Fuel Line Maximum Pressure
Standard: 294 kPa (3.0 kgf/cm², 43 psi)
NOTICE
During pressure testing, do not exceed the maximum pressure for which the system is designed.
○Watch the gauge for at least 6 seconds.
If the pressure holds steady, the fuel line is good.
If the pressure drops at once or if bubbles are found in the
area, the fuel line is leaking. Replace the delivery pipe
assy, injectors and related parts.
○Repeat the leak test, and check the fuel line for no leakage.
Install the removed parts (see appropriate chapters).
Start the engine and check for fuel leakage.
•
•
17-88 SELF-DIAGNOSIS SYSTEM
Primary Fuel Injectors #1, #2, #3, #4 (Service Code 41, 42, 43, 44) (DTC P0201,
P0202, P0203, P0204)
Fuel Injector Circuit
1. ECU
2. Engine Ground
3. Battery 12 V 8.6 Ah
4. Starter Relay
5. Main Fuse 30 A
6. ECU Fuse 15 A
7. Fuse Box (1)
8. Ignition Fuse 15 A
9. Fuel Pump Relay
10. Ignition Switch
11. Engine Stop Switch
12. Secondary Fuel Injector #1
13. Secondary Fuel Injector #2
14. Secondary Fuel Injector #3
15. Secondary Fuel Injector #4
16. Joint Connector G
17. Primary Fuel Injector #1
18. Primary Fuel Injector #2
19. Primary Fuel Injector #3
20. Primary Fuel Injector #4
SELF-DIAGNOSIS SYSTEM 17-89
Fuel Pump Relay (Service Code 46) (DTC P0627)
Fuel Pump Relay Removal/Installation
• Remove:
Upper Seat Cover (see Seat Cover Removal in the
•
Frame chapter)
Fuel Pump Relay [A]
Disconnect the fuel pump relay lead connector.
to the Relay Circuit Inspection in the Electrical Sys• Refer
tem chapter.
If the fuel pump relay is normal, check the wiring to the
fuel pump relay (see Fuel Pump Relay Circuit).
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).
1. ECU
2. Frame Ground
3. Fuel Pump
4. Engine Ground
5. Battery 12 V 8.6 Ah
6. Starter Relay
7. Main Fuse 30 A
8. ECU Fuse 15 A
9. Fuel Pump Relay
10. Fuse Box (1)
11. Ignition Fuse 15 A
12. Ignition Switch
13. Engine Stop Switch
17-90 SELF-DIAGNOSIS SYSTEM
Return Spring (Service Code 49) (DTC P2119)
Return Spring Removal
NOTICE
Do not remove return spring in the gear case [A]
since it has been set with precision at the factory.
Return Spring Inspection
the ignition switch off.
• Turn
• Remove
Air Cleaner Housing (see Air Cleaner Housing Removal
•
in the Fuel System (DFI) chapter)
Check that the throttle valves [A] move lightly by pushing
finger without the spring force.
If the throttle valves move lightly, the return spring is broken, replace the throttle body assy.
If the throttle valves move hardly and return them by the
return spring, check the output voltage of the throttle position sensor (see Throttle Position Sensor Output Voltage
Inspection).
If the output voltage is good, replace the ECU (see ECU
Removal/Installation in the Fuel System (DFI) chapter).
SELF-DIAGNOSIS SYSTEM 17-91
Secondary Fuel Injectors #1, #2, #3, #4 (Service Code 4A, 4B, 4C, 4D) (DTC
P0205, P0206, P0207, P0208)
Secondary Fuel Injector #1:
Secondary Fuel Injector #2:
Secondary Fuel Injector #3:
Secondary Fuel Injector #4:
Service Code 4A
Service Code 4B
Service Code 4C
Service Code 4D
Secondary Fuel Injector Removal/Installation
to the Nozzle Assy Disassembly/Assembly in the
• Refer
Fuel System (DFI) chapter.
Secondary Fuel Injector Audible Inspection
NOTE
○Be sure the battery is fully charged.
○The secondary fuel injectors are operating with following conditions.
1. The engine speed is more than 5 000 r/min (rpm).
2. The throttle opening is more than 12°.
• Remove:
Fuel Tank (see Fuel Tank Removal in the Fuel System
•
(DFI) chapter)
Primary Fuel Hose (see Fuel Hose Replacement in the
Periodic Maintenance chapter)
Connect the following parts temporarily.
Fuel Pump Lead Connector [A]
Extension Tube [B]
Special Tool - Extension Tube: 57001-1578
the engine.
• Start
Apply
[A] to the secondary fuel
• injectorthe[B].flatPuttipthescrewdriver
grip end onto your ear, and listen
whether the secondary fuel injector is clicking or not.
○A sound scope can also be used.
○The click interval becomes shorter as the engine speed
•
•
rises.
Do the same for the other secondary fuel injectors.
If all the secondary fuel injectors click at a regular intervals, the secondary fuel injectors are normal.
Turn the ignition switch off.
If any secondary fuel injector does not click, check the
secondary fuel injector resistance (see Secondary Fuel
Injector Resistance Inspection).
Secondary Fuel Injector Resistance Inspection
• Remove:
Fuel Tank (see Fuel Tank Removal in the Fuel System
•
(DFI) chapter)
Disconnect:
Secondary Fuel Injector Connector [A]
17-92 SELF-DIAGNOSIS SYSTEM
Secondary Fuel Injectors #1, #2, #3, #4 (Service Code 4A, 4B, 4C, 4D) (DTC
P0205, P0206, P0207, P0208)
a digital meter to the terminals in each secondary
• Connect
fuel injector [A].
• Measure the secondary fuel injector resistance.
Secondary Fuel Injector Resistance
Standard:
About 11.7 12.3 Ω @20°C (68°F)
If the reading is out of the standard, replace the secondary
fuel injector.
If the reading is within the standard, check the power
source voltage (see Secondary Fuel Injector Power
Source Voltage Inspection).
Secondary Fuel Injector Power Source Voltage
Inspection
NOTE
○Be sure the battery is fully charged.
the ignition switch off.
• Turn
Remove:
• Fuel Tank (see Fuel Tank Removal in the Fuel System
•
(DFI) chapter)
Disconnect the secondary fuel injector connector and
connect the measuring adapter [A] between these connectors as shown.
Main Harness [B]
Secondary Fuel Injector #1 [C]
Special Tool - Measuring Adapter: 57001-1700
a digital meter [D] to the measuring adapter
• Connect
leads.
Secondary Fuel Injector Power Source Voltage
Connections to Adapter:
For Secondary Fuel Injector #1, #2, #3, #4
Digital Meter (+) → R (injector W/R) lead
Digital Meter (–) → Battery (–) Terminal
SELF-DIAGNOSIS SYSTEM 17-93
Secondary Fuel Injectors #1, #2, #3, #4 (Service Code 4A, 4B, 4C, 4D) (DTC
P0205, P0206, P0207, P0208)
the power source voltage with
• Measure
stopped.
the engine stop switch to run position.
• Turn
Turn
• the ignition switch on.
the engine
Power Source Voltage
Standard: Battery Voltage for 3 seconds, and then 0 V
the ignition switch off.
• Turn
If the reading stays on battery voltage and never shows 0
V, check the fuel pump relay (see Relay Circuit Inspection
in the Electrical System chapter).
If the fuel pump relay is normal, check the ECU for its
ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).
If there is still no battery voltage, check the fuel pump relay (see Relay Circuit Inspection in the Electrical System
chapter).
If the fuel pump relay is normal, check the power source
wiring (see Fuel Injector Circuit).
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).
If the reading is in specification, check the output voltage
(see Secondary Fuel Injector Output Voltage Inspection).
Secondary Fuel Injector Output Voltage Inspection
NOTE
○Be sure the battery is fully charged.
the ignition switch off.
• Turn
• Remove:
ECU (see ECU Removal in the Fuel System (DFI) chapter)
Do
○ not disconnect the ECU connectors.
17-94 SELF-DIAGNOSIS SYSTEM
Secondary Fuel Injectors #1, #2, #3, #4 (Service Code 4A, 4B, 4C, 4D) (DTC
P0205, P0206, P0207, P0208)
a digital meter [A] to the connector [B] with the
• Connect
needle adapter set.
Special Tool - Needle Adapter Set: 57001-1457
Secondary Fuel Injector Output Voltage
Connections to ECU Connector:
For Secondary Fuel Injector #1
Digital Meter (+) → O/R lead (ECU terminal 14)
Digital Meter (–) → Frame Ground Terminal
For Secondary Fuel Injector #2
Digital Meter (+) → O/G lead (ECU terminal 1)
Digital Meter (–) → Frame Ground Terminal
For Secondary Fuel Injector #3
Digital Meter (+) → O/BK lead (ECU terminal 3)
Digital Meter (–) → Frame Ground Terminal
For Secondary Fuel Injector #4
Digital Meter (+) → O/Y lead (ECU terminal 5)
Digital Meter (–) → Frame Ground Terminal
the output voltage with the engine stopped and
• Measure
with the connector joined.
the engine stop switch to run position.
• Turn
Turn
• the ignition switch on.
Output Voltage
Standard: Battery Voltage for 3 seconds, and then 0 V
the ignition switch off.
• Turn
If the reading is in specification, check the ECU for its
ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).
SELF-DIAGNOSIS SYSTEM 17-95
Secondary Fuel Injectors #1, #2, #3, #4 (Service Code 4A, 4B, 4C, 4D) (DTC
P0205, P0206, P0207, P0208)
If the reading is out of the specification, remove the ECU
and check the wiring for continuity between main harness
connectors.
○Disconnect the ECU and sensor connectors.
Wiring Continuity Inspection
ECU Connector [A] ←→ Secondary Fuel Injector
Connector [B]
For Secondary Fuel Injector #1
ECU Terminal 14 [C] ←→ Fuel Injector #1 Terminal
[D]
For Secondary Fuel Injector #2
ECU Terminal 1 [E] ←→ Fuel Injector #2 Terminal
[D]
For Secondary Fuel Injector #3
ECU Terminal 3 [F] ←→ Fuel Injector #3 Terminal
[D]
For Secondary Fuel Injector #4
ECU Terminal 5 [G] ←→ Fuel Injector #4 Terminal
[D]
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).
Secondary Fuel Injector Fuel Line Inspection
• Refer to the Primary Fuel Injector Fuel Line Inspection.
17-96 SELF-DIAGNOSIS SYSTEM
Secondary Fuel Injectors #1, #2, #3, #4 (Service Code 4A, 4B, 4C, 4D) (DTC
P0205, P0206, P0207, P0208)
Fuel Injector Circuit
1. ECU
2. Engine Ground
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TSB/Document ID: 99924-1509-03
Replacement Service Bulletin Number:
MFR Communication Date: 2017-01-25
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
MFR Component System:
MFR Component Subsystem:
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- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API
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