How to Proceed with Troubleshooting
2GR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING
HINT
Techstream can be used in steps 2, 3, 4, 6 and 9.
1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. CONNECT TECHSTREAM TO DLC3
HINT
If the display indicates a communication fault in the tester, inspect the DLC3.
NEXT -- Continue to next step.
3. CHECK DTC AND FREEZE FRAME DATA
(a) Check for DTC(s) and freeze frame data Freeze Frame Data.
HINT
Record or print the DTCs and freeze frame data, if necessary.
NEXT -- Continue to next step.
4. CLEAR DTC AND FREEZE FRAME DATA
(a) Clear the DTC(s) and freeze frame data Freeze Frame Data.
NEXT -- Continue to next step.
5. CONDUCT VISUAL INSPECTION
NEXT -- Continue to next step.
6. SET CHECK MODE DIAGNOSIS
(a) Set the check mode Check Mode Procedure.
NEXT -- Continue to next step.
7. CONFIRM PROBLEM SYMPTOMS
HINT
If the engine does not start, perform steps 10 and 12 first.
Result:
B -- GO TO STEP 9
A -- Continue to next step.
8. SIMULATE SYMPTOMS
NEXT -- Continue to next step.
9. CHECK FOR DTCS
(a) Check for DTCs DTC Check / Clear.
Result:
B -- GO TO STEP 11
A -- Continue to next step.
10. REFER TO DTC CHART
HINT
Refer to the DTC chart Engine Control System - SFI System
NEXT -- GO TO STEP 13
11. CONDUCT BASIC INSPECTION
HINT
Refer to "BASIC INSPECTION" Engine Control System - SFI System - Basic Inspection
Result:
B -- GO TO STEP 16
A -- Continue to next step.
12. REFER TO PROBLEM SYMPTOMS TABLE
HINT
Refer to "PROBLEM SYMPTOMS TABLE" Symptom Related Diagnostic Procedures
Result:
B -- GO TO STEP 16
A -- Continue to next step.
13. CHECK ECM POWER SOURCE CIRCUIT
HINT
Refer to "ECM POWER SOURCE CIRCUIT" Component Tests and General Diagnostics
NEXT -- Continue to next step.
14. CONDUCT CIRCUIT INSPECTION
Result:
B -- GO TO STEP 17
A -- Continue to next step.
15. CHECK FOR INTERMITTENT PROBLEMS
HINT
Refer to "CHECK FOR INTERMITTENT PROBLEMS" Engine Control System - SFI System - Check for Intermittent Problems
NEXT -- GO TO STEP 17
16. CONDUCT PARTS INSPECTION
NEXT -- Continue to next step.
17. IDENTIFY PROBLEM
NEXT -- Continue to next step.
18. ADJUST AND/OR REPAIR
NEXT -- Continue to next step.
19. CONDUCT CONFIRMATION TEST
NEXT -- END