RM3660EC _51 Engine / Hybrid System _080777 NR Series ENGINE CONTROL _0393969 SFI SYSTEM Y

NR Series ENGINE CONTROL  SFI SYSTEM  HOW TO PROCEED WITH TROUBLESHOOTING  


CAUTION / NOTICE / HINT

HINT:

*: Use the GTS.


PROCEDURE

1.VEHICLE BROUGHT TO WORKSHOP
Result:
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2.CUSTOMER PROBLEM ANALYSIS
2.CUSTOMER PROBLEM ANALYSIS
Result:
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3.CONNECT GTS TO DLC3*
3.CONNECT GTS TO DLC3*
HINT:

If the display indicates a communication malfunction, inspect the DLC3.

If any CAN communication system DTCs are output, perform troubleshooting for the CAN communication system first.


Result:
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4.CHECK DTC AND FREEZE FRAME DATA*
4.CHECK DTC AND FREEZE FRAME DATA*
a.

Check for DTCs.

Powertrain > Engine > Trouble Codes
50001 372

b.

Check for Freeze Frame Data.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>FREEZE FRAME DATA


HINT:

Record or print DTCs and Freeze Frame Data if necessary.


Result:
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5.CHECK VEHICLE CONTROL HISTORY AND VEHICLE CONTROL HISTORY FREEZE FRAME DATA*
5.CHECK VEHICLE CONTROL HISTORY AND VEHICLE CONTROL HISTORY FREEZE FRAME DATA*
a.

Check for Vehicle Control History and Vehicle Control History Freeze Frame Data.

Powertrain > Engine > Utility
Tester Display
Vehicle Control History (RoB)
50005 372 55
HINT:

Print Vehicle Control History and Vehicle Control History Freeze Frame Data if necessary.



Result:
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6.CLEAR DTC AND FREEZE FRAME DATA*
6.CLEAR DTC AND FREEZE FRAME DATA*
a.

Clear the DTCs and Freeze Frame Data.

Powertrain > Engine > Clear DTCs
50002 372

Result:
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7.CONDUCT VISUAL INSPECTION
7.CONDUCT VISUAL INSPECTION
Result:
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8.SELECT CHECK MODE DIAGNOSIS*
8.SELECT CHECK MODE DIAGNOSIS*
a.

Switch the ECM from normal mode to check mode.

Powertrain > Engine > Utility
Tester Display
Check Mode
50005 372 1

Result:
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9.CONFIRM PROBLEM SYMPTOMS
9.CONFIRM PROBLEM SYMPTOMS
a.

Confirm problem symptoms.

HINT:

If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.


Result:
Result Proceed to
Malfunction does not occur A
Malfunction occurs B




A

10.SIMULATE SYMPTOMS

B

11.CHECK DTC*
10.SIMULATE SYMPTOMS
HINT:

Refer to Symptom Simulation.

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


Result:
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11.CHECK DTC*
11.CHECK DTC*
a.

Check for DTCs.

Powertrain > Engine > Trouble Codes
50001 372
Result:
Result Proceed to
DTCs are output A
DTCs are not output B




A

12.REFER TO DTC CHART

B

13.CONDUCT BASIC INSPECTION
13.CONDUCT BASIC INSPECTION
a.

Conduct basic inspection.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>BASIC INSPECTION

Result:
Result Proceed to
Malfunctioning parts not confirmed A
Malfunctioning parts confirmed B




A

14.REFER TO PROBLEM SYMPTOMS TABLE

B

18.CONDUCT PARTS INSPECTION
14.REFER TO PROBLEM SYMPTOMS TABLE
HINT:

Refer to Problem Symptoms Table.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>PROBLEM SYMPTOMS TABLE


Result:
Result Proceed to
Malfunctioning circuit confirmed A
Malfunctioning parts confirmed B



A

15.CHECK ECM POWER SOURCE CIRCUIT

B

18.CONDUCT PARTS INSPECTION
15.CHECK ECM POWER SOURCE CIRCUIT
a.

Check the ECM power source circuit.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>ECM Power Source Circuit


Result:
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16.CONDUCT CIRCUIT INSPECTION
16.CONDUCT CIRCUIT INSPECTION
Result:
Result Proceed to
Malfunction not confirmed A
Malfunction confirmed B



A

17.CHECK FOR INTERMITTENT PROBLEMS

B

19.IDENTIFY PROBLEM
17.CHECK FOR INTERMITTENT PROBLEMS
a.

Check for intermittent problems.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>CHECK FOR INTERMITTENT PROBLEMS


Result:
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18.CONDUCT PARTS INSPECTION
18.CONDUCT PARTS INSPECTION
Result:
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19.IDENTIFY PROBLEM
19.IDENTIFY PROBLEM
Result:
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20.ADJUST AND/OR REPAIR
20.ADJUST AND/OR REPAIR
Result:
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21.CONDUCT CONFIRMATION TEST
21.CONDUCT CONFIRMATION TEST
Result:
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END