RM35X0E _51 Engine / Hybrid System _078720 7GR-FKS ENGINE CONTROL _0381907 SFI SYSTEM C

7GR-FKS 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  P21D313  Cylinder 5 Injector "B" Circuit Open  P21D413  Cylinder 6 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 Memory Note
P21CF13 Cylinder 1 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).
·

Open or short in fuel injector assembly (for port injection) circuit

·

Fuel injector assembly (for port injection)

·

ECM


Comes on DTC stored SAE Code: P21CF
P21D013 Cylinder 2 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).
·

Open or short in fuel injector assembly (for port injection) circuit

·

Fuel injector assembly (for port injection)

·

ECM


Comes on DTC stored SAE Code: P21D0
P21D113 Cylinder 3 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).
·

Open or short in fuel injector assembly (for port injection) circuit

·

Fuel injector assembly (for port injection)

·

ECM


Comes on DTC stored SAE Code: P21D1
P21D213 Cylinder 4 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).
·

Open or short in fuel injector assembly (for port injection) circuit

·

Fuel injector assembly (for port injection)

·

ECM


Comes on DTC stored SAE Code: P21D2
P21D313 Cylinder 5 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).
·

Open or short in fuel injector assembly (for port injection) circuit

·

Fuel injector assembly (for port injection)

·

ECM


Comes on DTC stored SAE Code: P21D3
P21D413 Cylinder 6 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).
·

Open or short in fuel injector assembly (for port injection) circuit

·

Fuel injector assembly (for port injection)

·

ECM


Comes on DTC stored SAE Code: P21D4

MONITOR DESCRIPTION

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

MONITOR STRATEGY

Required Sensors/Components Port injector (cylinder 1 to 6)
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN

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.

Start the engine [A].

7.

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

8.

Turn the GTS on.

9.

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

10.

Read the DTCs [B].

HINT:
·

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

·

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



11.

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

12.

Input the DTC: P21CF13, P21D013, P21D113, P21D213, P212313 or P212413.

13.

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.




WIRING DIAGRAM

A439414E08
5.708,0.552 6.167,0.75 0.458,0.198 10 false #10 5.406,0.646 5.865,0.844 0.458,0.198 10 false E1 5.406,1.49 5.865,1.688 0.458,0.198 10 false E2 5.396,2.323 5.854,2.521 0.458,0.198 10 false E1 5.396,3.146 5.854,3.344 0.458,0.198 10 false E2 5.396,3.969 5.854,4.167 0.458,0.198 10 false E1 5.396,4.802 5.854,5 0.458,0.198 10 false E2 5.396,5.688 5.854,5.885 0.458,0.198 10 false E1 5.708,1.354 6.167,1.552 0.458,0.198 10 false #20 5.708,2.188 6.167,2.385 0.458,0.198 10 false #30 5.719,3 6.177,3.198 0.458,0.198 10 false #40 5.719,3.833 6.177,4.031 0.458,0.198 10 false #50 5.688,4.667 6.146,4.865 0.458,0.198 10 false #60 5.406,0.458 5.719,0.656 0.313,0.198 10 false 10 5.406,1.302 5.688,1.479 0.281,0.177 9 false 19 5.448,2.135 5.604,2.333 0.156,0.198 10 false 9 5.406,2.958 5.719,3.156 0.313,0.198 10 false 18 5.448,3.792 5.604,3.99 0.156,0.198 10 false 8 5.417,4.604 5.729,4.802 0.313,0.198 10 false 17 2.646,0.823 2.958,1.021 0.313,0.198 10 false I1 2.625,0.99 5.583,1.25 2.958,0.26 10 false No. 1 Fuel Injector Assembly (for Port Injection) 2.646,1.823 5.604,2.083 2.958,0.26 10 false No. 2 Fuel Injector Assembly (for Port Injection) 2.635,2.646 5.594,2.906 2.958,0.26 10 false No. 3 Fuel Injector Assembly (for Port Injection) 2.667,3.49 5.625,3.75 2.958,0.26 10 false No. 4 Fuel Injector Assembly (for Port Injection) 2.646,4.313 5.604,4.573 2.958,0.26 10 false No. 5 Fuel Injector Assembly (for Port Injection) 2.656,5.146 5.615,5.406 2.958,0.26 10 false No. 6 Fuel Injector Assembly (for Port Injection) 2.646,4.104 2.958,4.302 0.313,0.198 10 false I3 2.646,2.479 2.958,2.677 0.313,0.198 10 false I2 2.656,3.323 2.969,3.521 0.313,0.198 10 false I5 2.635,1.635 2.948,1.833 0.313,0.198 10 false I6 2.656,4.969 2.969,5.167 0.313,0.198 10 false I4 1.625,0.646 1.938,0.844 0.313,0.198 10 false 1B 1.688,0.479 1.844,0.677 0.156,0.198 10 false 7 1.635,1.021 1.948,1.219 0.313,0.198 10 false 1E 1.677,0.865 1.833,1.063 0.156,0.198 10 false 4 0.656,0.802 1.115,1 0.458,0.198 10 false INJ 1.177,1.458 1.542,1.854 0.365,0.396 10 false IG2 MAIN 0.469,2.271 0.844,2.656 0.375,0.385 10 false IG2-MAIN 0.333,2.771 0.646,2.969 0.313,0.198 10 false A 0.563,2.771 0.719,2.969 0.156,0.198 10 false 1 0.813,2.781 1.125,2.979 0.313,0.198 10 false 1D 1.125,2.771 1.281,2.969 0.156,0.198 10 false 2 0.635,6.052 1.708,6.25 1.073,0.198 10 false Battery 5.396,6.135 5.854,6.333 0.458,0.198 10 false E2 5.448,5.49 5.604,5.688 0.156,0.198 10 false 3 5.448,5.948 5.604,6.146 0.156,0.198 10 false 3 5.719,5.552 6.177,5.75 0.458,0.198 10 false E01 5.698,6.021 6.156,6.219 0.458,0.198 10 false E02 6.208,6.448 6.667,6.615 0.458,0.167 10 false ECM 4.656,0.521 4.813,0.719 0.156,0.198 10 false 2 4.646,1.344 4.802,1.542 0.156,0.198 10 false 2 4.646,2.177 4.802,2.375 0.156,0.198 10 false 2 4.688,3.021 4.844,3.219 0.156,0.198 10 false 2 4.698,3.854 4.854,4.052 0.156,0.198 10 false 2 4.656,4.656 4.813,4.854 0.156,0.198 10 false 2 3.5,0.521 3.656,0.719 0.156,0.198 10 false 1 3.49,1.323 3.646,1.521 0.156,0.198 10 false 1 3.51,2.167 3.667,2.365 0.156,0.198 10 false 1 3.51,3.021 3.667,3.219 0.156,0.198 10 false 1 3.51,3.844 3.667,4.042 0.156,0.198 10 false 1 3.51,4.656 3.667,4.854 0.156,0.198 10 false 1 0.469,4.615 1.677,5 1.208,0.385 10 false from Ignition Switch Assembly*2 1.021,3 2.052,3.417 1.031,0.417 10 false No. 1 Integration Relay 0.448,3.167 0.813,3.531 0.365,0.365 10 false FL MAIN 0.469,3.938 2.302,4.365 1.833,0.427 10 false from Certification ECU (Smart Key ECU Assembly)*1 1.323,5.885 5.76,6.083 4.438,0.198 10 false *1: w/ Entry and Start System 1.323,6.229 5.906,6.427 4.583,0.198 10 false *2: w/o Entry and Start System

CAUTION / NOTICE / HINT

NOTICE:

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


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, P21D213, P21D313 OR P21D413)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine / Trouble Codes.


e.

Read the DTCs.

Powertrain > Engine > Trouble Codes
50001 372
Result:
Result Proceed to
P21CF13, P21D013, P21D113, P21D213, P21D313 or P21D413 is output A
P21CF13, P21D013, P21D113, P22D213, P21D313 and P21D413 are output B




A

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

B

REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 MAIN RELAY - PORT FUEL INJECTOR ASSEMBLY)

2.CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION))
A358791C49
0.667,1.271 1.063,1.49 0.396,0.219 0.188,1.271 0.583,1.49 0.396,0.219 0.188,0.969 0.583,1.188 0.396,0.219 0.188,0.667 0.583,0.885 0.396,0.219 0.667,0.667 1.063,0.885 0.396,0.219 0.667,0.969 1.063,1.188 0.396,0.219 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 0.333,0.698 0.646,0.896 0.313,0.198 10 false I1 0.823,1 1.135,1.198 0.313,0.198 10 false I3 0.344,1.292 0.656,1.49 0.313,0.198 10 false I2 0.813,0.688 1.125,0.885 0.313,0.198 10 false I5 0.344,1 0.656,1.198 0.313,0.198 10 false I6 0.833,1.292 1.146,1.49 0.313,0.198 10 false I4
*a Front view of wire harness connector
(to Fuel Injector Assembly (for Port Injection))


a.

Disconnect the fuel injector assembly (for port injection) 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
I1-1 - Body ground Ignition switch ON 11 to 14 V
I6-1 - Body ground Ignition switch ON 11 to 14 V
I2-1 - Body ground Ignition switch ON 11 to 14 V
I5-1 - Body ground Ignition switch ON 11 to 14 V
I3-1 - Body ground Ignition switch ON 11 to 14 V
I4-1 - Body ground Ignition switch ON 11 to 14 V



Result:
Proceed to
OK
NG



OK

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

NG

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

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

Disconnect the ECM connector.


b.

Disconnect the fuel injector assembly (for port injection) connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I1-2 - E1-10 (#10) Always Below 1 Ω
I6-2 - E2-19 (#20) Always Below 1 Ω
I2-2 - E1-9 (#30) Always Below 1 Ω
I5-2 - E2-18 (#40) Always Below 1 Ω
I3-2 - E1-8 (#50) Always Below 1 Ω
I4-2 - E2-17 (#60) Always Below 1 Ω
I1-2 or E1-10 (#10) - Body ground and other terminals Always 10 kΩ or higher
I6-2 or E2-19 (#20) - Body ground and other terminals Always 10 kΩ or higher
I2-2 or E1-9 (#30) - Body ground and other terminals Always 10 kΩ or higher
I5-2 or E2-18 (#40) - Body ground and other terminals Always 10 kΩ or higher
I3-2 or E1-8 (#50) - Body ground and other terminals Always 10 kΩ or higher
I4-2 or E2-17 (#60) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.INSPECT FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION (RESISTANCE))

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR