How to Proceed With Troubleshooting

U241E AUTOMATIC TRANSAXLE: AUTOMATIC TRANSAXLE SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* The ECM of this system is connected to the CAN and multiplex communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN and multiplex communication systems.
* *: Use Techstream.
1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CUSTOMER PROBLEM ANALYSIS

(a) Refer to How to Troubleshoot ECU Controlled Systems How To Proceed With Troubleshooting.

NEXT -- Continue to next step.

3. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

NEXT -- Continue to next step.

4. CONNECT TECHSTREAM TO THE DLC3*

NEXT -- Continue to next step.

5. CHECK AND CLEAR DTCS AND FREEZE FRAME DATA*

(a) Refer to the DTC CHECK / CLEAR DTC Check / Clear.

NEXT -- Continue to next step.

6. VISUAL INSPECTION

NEXT -- Continue to next step.

7. SETTING CHECK MODE DIAGNOSIS*

(a) Refer to the CHECK MODE PROCEDURE Check Mode Procedure.

NEXT -- Continue to next step.

8. PROBLEM SYMPTOM CONFIRMATION

(a) Refer to the ROAD TEST Road Test.

Result:





B -- GO TO STEP 10
A -- Continue to next step.

9. SYMPTOM SIMULATION

(a) Refer to the ELECTRONIC CIRCUIT INSPECTION PROCEDURE Electronic Circuit Inspection Procedure.

NEXT -- Continue to next step.

10. DTC CHECK*

(a) Refer to the DTC CHECK / CLEAR DTC Check / Clear.

Result:





B -- GO TO STEP 18
A -- Continue to next step.

11. BASIC INSPECTION

(a) Refer to the AUTOMATIC TRANSMISSION FLUID Procedures.

(b) Refer to the PARK/NEUTRAL POSITION SWITCH Inspection.

(c) Refer to the FLOOR SHIFT ASSEMBLY Removal.

NG -- GO TO STEP 21
OK -- Continue to next step.

12. MECHANICAL SYSTEM TESTS

(a) Refer to the MECHANICAL SYSTEM TESTS Mechanical System Tests.

NG -- GO TO STEP 17
OK -- Continue to next step.

13. HYDRAULIC TEST

(a) Refer to the HYDRAULIC TEST Hydraulic Test.

NG -- GO TO STEP 17
OK -- Continue to next step.

14. MANUAL SHIFTING TEST

(a) Refer to the MANUAL SHIFTING TEST Manual Shifting Test.

NG -- GO TO STEP 16
OK -- Continue to next step.

15. PROBLEM SYMPTOMS TABLE CHAPTER 1

(a) Refer to the PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures.

NG -- GO TO STEP 19
OK -- Continue to next step.

16. PROBLEM SYMPTOMS TABLE CHAPTER 2

(a) Refer to the PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures.

NEXT -- Continue to next step.

17. PART INSPECTION

NG -- GO TO STEP 21
OK -- Continue to next step.

18. DTC CHART

(a) Refer to the DIAGNOSTIC TROUBLE CODE CHART Automatic Transaxle System - U241E.

NEXT -- Continue to next step.

19. CIRCUIT INSPECTION

NEXT -- Continue to next step.

20. IDENTIFICATION OF PROBLEM

NEXT -- Continue to next step.

21. REPAIR OR REPLACE

NEXT -- Continue to next step.

22. CONFIRMATION TEST

NEXT -- END