How to Proceed With Troubleshooting

A750E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure that there is no trouble in the CAN communication system.
- *: 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*
NEXT -- Continue to next step.

4. CHECK AND CLEAR DTCS AND FREEZE FRAME DATA*
Refer to the DTC Check/Clear DTC Check / Clear.
NEXT -- Continue to next step.

5. VISUAL INSPECTION
NEXT -- Continue to next step.

6. SETTING CHECK MODE DIAGNOSIS*
Refer to the Check Mode Procedure Check Mode Procedure.
NEXT -- Continue to next step.

7. PROBLEM SYMPTOM CONFIRMATION
Refer to the Road Test Road Test.

Result





B -- GO TO STEP 9
A -- Continue to next step.

8. SYMPTOM SIMULATION
Refer to the Electronic Circuit inspection Procedure Electronic Circuit Inspection Procedure.
NEXT -- Continue to next step.

9. DTC CHECK*
Refer to the DTC Check/Clear DTC Check / Clear.

Result





B -- GO TO STEP 17
A -- Continue to next step.

10. BASIC INSPECTION
Refer to Automatic Transmission Fluid Procedures.
Refer to Park/Neutral Position Switch Adjustments.
Refer to Floor Shift Assembly Adjustments.
NG -- GO TO STEP 19
OK -- Continue to next step.

11. MECHANICAL SYSTEM TESTS
Refer to the Mechanical System Tests Mechanical System Tests.
NG -- GO TO STEP 16
OK -- Continue to next step.

12. HYDRAULIC TEST
Refer to the Hydraulic Test Hydraulic Test.
NG -- GO TO STEP 16
OK -- Continue to next step.

13. MANUAL SHIFTING TEST
Refer to the Manual Shifting Test Manual Shifting Test.
NG -- GO TO STEP 15
OK -- Continue to next step.

14. PROBLEM SYMPTOMS TABLE CHAPTER 1
Refer to the Problem Symptoms Table Symptom Related Diagnostic Procedures.
NG -- GO TO STEP 18
OK -- Continue to next step.

15. PROBLEM SYMPTOMS TABLE CHAPTER 2
Refer to the Problem Symptoms Table Symptom Related Diagnostic Procedures.
NEXT -- Continue to next step.

16. PART INSPECTION
NEXT -- GO TO STEP 19
17. DTC CHART
Refer to the Diagnostic Trouble Code Chart Automatic Transmission System.
NEXT -- Continue to next step.

18. CIRCUIT INSPECTION
NEXT -- Continue to next step.

19. REPAIR OR REPLACE
NEXT -- Continue to next step.

20. CONFIRMATION TEST
NEXT -- END