RM38T0EC _51 Engine / Hybrid System _144956 M20F-FXS, M20G-FXS ENGINE CONTROL _0604911 SFI SYSTEM C

M20F-FXS, M20G-FXS ENGINE CONTROL  SFI SYSTEM  P21CF13  Cylinder 1 Injector "B" Circuit Open  P21D013  Cylinder 2 Injector "B" Circuit Open  P21D113  Cylinder 3 Injector "B" Circuit Open  P21D213  Cylinder 4 Injector "B" Circuit Open  


DESCRIPTION

The D-4S system has two injection systems. One is an in-cylinder direct injection system that directly injects pressurized fuel into the combustion chamber. The other is an intake port injection system. The ECM determines the percentage of direct injection and port injection necessary in accordance with the engine speed and load.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
P21CF13 Cylinder 1 Injector "B" Circuit Open Open or short in port fuel injector assembly (1 trip detection logic).
·

Open or short in port fuel injector assembly circuit

·

Port fuel injector assembly

·

ECM


Comes on SAE Code: P21CF
P21D013 Cylinder 2 Injector "B" Circuit Open Open or short in port fuel injector assembly (1 trip detection logic).
·

Open or short in port fuel injector assembly circuit

·

Port fuel injector assembly

·

ECM


Comes on SAE Code: P21D0
P21D113 Cylinder 3 Injector "B" Circuit Open Open or short in port fuel injector assembly (1 trip detection logic).
·

Open or short in port fuel injector assembly circuit

·

Port fuel injector assembly

·

ECM


Comes on SAE Code: P21D1
P21D213 Cylinder 4 Injector "B" Circuit Open Open or short in port fuel injector assembly (1 trip detection logic).
·

Open or short in port fuel injector assembly circuit

·

Port fuel injector assembly

·

ECM


Comes on SAE Code: P21D2

MONITOR DESCRIPTION

The ECM monitors the injection control of the port fuel injector assemblies. If a malfunction is detected in a port fuel injector assembly circuit, the ECM cancels the injection control for the corresponding cylinder, illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Required Sensors/Components Port fuel injector assembly (cylinder 1 to 4)
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN

HINT:
·

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR

·

When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR



1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON.

3.

Turn the GTS on.

4.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

5.

Turn the ignition switch off and wait for at least 30 seconds.

6.

Turn the ignition switch to ON.

7.

Turn the GTS on.

8.

Put the engine in Inspection Mode (Maintenance Mode).

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>INSPECTION MODE PROCEDURE

9.

Start the engine [A].

10.

Idle the engine for 3 minutes or more [B].

11.

Enter the following menus: Powertrain / Engine / Trouble Codes [C].

12.

Read the pending DTCs.

HINT:
·

If a pending DTC is output, the system is malfunctioning.

·

If a pending DTC is not output, perform the following procedure.



13.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

14.

Input the DTC: P21CF13, P21D013, P21D113 or P21D213.

15.

Check the DTC judgment result.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions



HINT:
·

If the judgment result is NORMAL, the system is normal.

·

If the judgment result is ABNORMAL, the system has a malfunction.

·

If the judgment result is INCOMPLETE, perform steps [B] through [C] again.

·

[A] to [C]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

·

When clearing the permanent DTCs, do not disconnect the cable from the auxiliary battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.




WIRING DIAGRAM

A518564E04
0.583,6.052 1.823,6.281 1.24,0.229 10 false Auxiliary Battery 0.396,5.052 1.25,5.271 0.854,0.219 10 false BATT MAIN 0.396,2.708 1.625,2.906 1.229,0.198 10 false IGP-MAIN 1.188,0.74 1.344,0.938 0.156,0.198 10 false 5 1.99,0.74 2.146,0.938 0.156,0.198 10 false 3 1.188,1.146 1.344,1.344 0.156,0.198 10 false 2 1.99,1.146 2.146,1.344 0.156,0.198 10 false 1 2.25,3.74 2.563,3.938 0.313,0.198 10 false 24 1.802,3.854 2.417,4.052 0.615,0.198 10 false IGPD 1.333,4.406 1.792,4.604 0.458,0.198 10 false I223 1.333,4.604 3.156,5.354 1.823,0.75 10 false Certification ECU (Smart Key ECU Assembly) 2.448,1.021 2.906,1.219 0.458,0.198 10 false INJ 3.583,1.052 3.896,1.25 0.313,0.198 10 false F1 3.583,1.25 5.313,1.635 1.729,0.385 10 false Port Fuel Injector Assembly (No. 1 Cylinder) 3.583,2.083 3.896,2.281 0.313,0.198 10 false F2 3.583,2.25 5.344,2.719 1.76,0.469 10 false Port Fuel Injector Assembly (No. 2 Cylinder) 3.583,3.083 3.896,3.281 0.313,0.198 10 false F3 3.583,3.25 5.385,3.677 1.802,0.427 10 false Port Fuel Injector Assembly (No. 3 Cylinder) 3.583,4.083 3.896,4.281 0.313,0.198 10 false F4 3.583,4.25 5.354,4.74 1.771,0.49 10 false Port Fuel Injector Assembly (No. 4 Cylinder) 3.688,0.74 3.844,0.938 0.156,0.198 10 false 1 3.688,1.75 3.844,1.948 0.156,0.198 10 false 1 3.698,2.75 3.854,2.948 0.156,0.198 10 false 1 3.688,3.76 3.844,3.958 0.156,0.198 10 false 1 4.938,0.74 5.094,0.938 0.156,0.198 10 false 2 4.938,1.75 5.094,1.948 0.156,0.198 10 false 2 4.948,2.75 5.104,2.948 0.156,0.198 10 false 2 4.948,3.76 5.104,3.958 0.156,0.198 10 false 2 6.177,6.094 6.594,6.365 0.417,0.271 10 false ECM 5.448,0.833 5.906,1.031 0.458,0.198 10 false C141 5.833,0.74 6.292,0.938 0.458,0.198 10 false #10 5.531,0.646 5.844,0.844 0.313,0.198 10 false 76 5.833,1.74 6.292,1.938 0.458,0.198 10 false #20 5.448,1.844 5.906,2.042 0.458,0.198 10 false C141 5.521,1.656 5.833,1.854 0.313,0.198 10 false 75 5.521,2.656 5.833,2.854 0.313,0.198 10 false 74 5.833,2.75 6.292,2.948 0.458,0.198 10 false #30 5.448,2.854 5.906,3.052 0.458,0.198 10 false C141 5.448,3.865 5.906,4.063 0.458,0.198 10 false C141 5.521,3.667 5.833,3.865 0.313,0.198 10 false 73 4.625,3.76 5.083,3.958 0.458,0.198 10 false #40 6.677,2.875 6.99,3.073 0.313,0.198 10 false IC 5.5,4.896 5.958,5.094 0.458,0.198 10 false A47 5.521,4.667 5.833,4.865 0.313,0.198 10 false 10 5.833,4.771 6.146,4.969 0.313,0.198 10 false E1 3.906,0.74 4.219,0.938 0.313,0.198 10 false #1 4.625,0.74 5.083,0.938 0.458,0.198 10 false #10 3.906,1.75 4.219,1.948 0.313,0.198 10 false #2 4.625,1.75 5.083,1.948 0.458,0.198 10 false #20 3.906,2.75 4.219,2.948 0.313,0.198 10 false #3 4.625,2.75 5.083,2.948 0.458,0.198 10 false #30 1.354,1.604 2.583,1.802 1.229,0.198 10 false IGP-MAIN 5.833,3.76 6.292,3.958 0.458,0.198 10 false #40 3.906,3.76 4.219,3.958 0.313,0.198 10 false #4

CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

Vehicle Control History may be stored in the hybrid vehicle control ECU assembly if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the Freeze Frame Data and Vehicle Control History can be useful for troubleshooting.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>VEHICLE CONTROL HISTORY (RoB)

(Select Powertrain in Health Check and then check the time stamp data.)

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR

·

If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU assembly, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>VEHICLE CONTROL HISTORY (RoB)



HINT:

Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.


PROCEDURE

1.CHECK DTCS OUTPUT (IN ADDITION TO DTC P21CF13, P21D013, P21D113 OR P21D213)
a.

Read the DTCs.

Powertrain > Engine > Trouble Codes
50001 372
Result:
Result Proceed to
DTC P21CF13, P21D013, P21D113 or P21D213 is output A
DTC P21CF13, P21D013, P21D113 and P21D213 are output B




A

2.CHECK TERMINAL VOLTAGE (POWER SOURCE OF PORT FUEL INJECTOR ASSEMBLY)

B

REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 NO. 1 RELAY - PORT FUEL INJECTOR ASSEMBLY)

2.CHECK TERMINAL VOLTAGE (POWER SOURCE OF PORT FUEL INJECTOR ASSEMBLY)
A487333C02
0.417,0.5 0.75,0.74 0.333,0.24 0.417,0.802 0.75,1.042 0.333,0.24 0.417,1.104 0.75,1.344 0.333,0.24 0.417,1.417 0.75,1.656 0.333,0.24 0.177,0.135 0.49,0.333 0.313,0.198 10 false *a 0.51,0.542 0.823,0.74 0.313,0.198 10 false F1 0.51,0.833 0.823,1.031 0.313,0.198 10 false F2 0.51,1.135 0.823,1.333 0.313,0.198 10 false F3 0.521,1.448 0.979,1.646 0.458,0.198 10 false F4
*a Front view of wire harness connector
(to Port Fuel Injector Assembly)


a.

Disconnect the port fuel injector assembly connector.


b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below

Standard Voltage:
Tester Connection Condition Specified Condition
F1-1 (#1) - Body ground Ignition switch ON 11 to 14 V
F2-1 (#2) - Body ground Ignition switch ON 11 to 14 V
F3-1 (#3) - Body ground Ignition switch ON 11 to 14 V
F4-1 (#4) - Body ground Ignition switch ON 11 to 14 V



Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (PORT FUEL INJECTOR ASSEMBLY - ECM)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 NO. 1 RELAY - PORT FUEL INJECTOR ASSEMBLY)

3.CHECK HARNESS AND CONNECTOR (PORT FUEL INJECTOR ASSEMBLY - ECM)
a.

Disconnect the port fuel injector assembly connectors.


b.

Disconnect the ECM connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
F1-2 (#10) - C141-76 (#10) Always Below 1 Ω
F2-2 (#20) - C141-75 (#20) Always Below 1 Ω
F3-2 (#30) - C141-74 (#30) Always Below 1 Ω
F4-2 (#40) - C141-73 (#40) Always Below 1 Ω
F1-2 (#10) or C141-76 (#10) - Body ground and other terminals Always 10 kΩ or higher
F2-2 (#20) or C141-75 (#20) - Body ground and other terminals Always 10 kΩ or higher
F3-2 (#30) or C141-74 (#30) - Body ground and other terminals Always 10 kΩ or higher
F4-2 (#40) or C141-73 (#40) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.INSPECT PORT FUEL INJECTOR ASSEMBLY (RESISTANCE)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR