How to Proceed With Troubleshooting
FA20 ENGINE CONTROL: SFI SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2013 MY FR-S [03/2012 -]
HINT
*: Use the Techstream.
1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. CUSTOMER PROBLEM ANALYSIS
NEXT -- Continue to next step.
3. CONNECT TECHSTREAM TO DLC3*
HINT
If the display indicates a communication fault in the Techstream, inspect the DLC3.
When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.
NEXT -- Continue to next step.
4. CHECK DTC AND FREEZE FRAME DATA*
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes and freeze frame data Data List / Active Test.
HINT
Record or print DTCs and freeze frame data if necessary.
NEXT -- Continue to next step.
5. CLEAR DTC AND FREEZE FRAME DATA*
(a) Clear DTCs and freeze frame data Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
6. CONDUCT VISUAL INSPECTION
NEXT -- Continue to next step.
7. SELECT CHECK MODE DIAGNOSIS*
(a) Switch the ECM from normal mode to check mode.
HINT
Refer to Check Mode Procedure Check Mode Procedure.
NEXT -- Continue to next step.
8. 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
B -- GO TO STEP 10
A -- Continue to next step.
9. SIMULATE SYMPTOMS
HINT
Refer to Symptom Simulation Symptom Related Diagnostic Procedures.
NEXT -- Continue to next step.
10. CHECK DTC*
(a) Check for DTCs.
HINT
Refer to DTC Check / Clear Reading and Clearing Diagnostic Trouble Codes.
Result
B -- GO TO STEP 12
A -- Continue to next step.
11. REFER TO DTC CHART
(a) Refer to Diagnostic Trouble Code Chart SFI System.
NEXT -- Continue to next step.
12. CONDUCT BASIC INSPECTION
(a) Conduct basic inspection Basic Inspection.
Result
B -- GO TO STEP 17
A -- Continue to next step.
13. REFER TO PROBLEM SYMPTOMS TABLE
(a) Refer to Problem Symptoms Table Symptom Related Diagnostic Procedures.
Result
B -- GO TO STEP 17
A -- Continue to next step.
14. CHECK ECM POWER SOURCE CIRCUIT
(a) Check the ECM power source circuit.
HINT
Refer to ECM Power Source Circuit ECM Power Source Circuit.
NEXT -- Continue to next step.
15. CONDUCT CIRCUIT INSPECTION
Result
B -- GO TO STEP 18
A -- Continue to next step.
16. CHECK FOR INTERMITTENT PROBLEMS
(a) Check for intermittent problems.
HINT
Refer to Check for Intermittent Problems Check For Intermittent Problems.
NEXT -- Continue to next step.
17. CONDUCT PARTS INSPECTION
NEXT -- Continue to next step.
18. IDENTIFY PROBLEM
NEXT -- Continue to next step.
19. ADJUST AND/OR REPAIR
NEXT -- Continue to next step.
20. CONDUCT CONFIRMATION TEST
NEXT -- END