How To Proceed With Troubleshooting

4GR-FSE STARTING: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the push-button start function.
* Techstream should be used in steps 4, 5 and 8.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CUSTOMER PROBLEM ANALYSIS CHECK

HINT
* In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
* Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

* The following 5 items are important points in the problem analysis:





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. INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)

(a) Use Techstream to check if the Multiplex Communication System (MPX) is functioning normally Reading and Clearing Diagnostic Trouble Codes.

Result:





B -- GO TO MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.

5. CHECK FOR DTC

(a) Check for DTC and note any codes that are output Reading and Clearing Diagnostic Trouble Codes.

(b) Delete DTC.

(c) Recheck DTC.

Result:





B -- GO TO DIAGNOSTIC TROUBLE CODE CHART
A -- Continue to next step.

6. INSPECT BASIC OPERATION

(a) Turn the engine switch on (START) and check that the engine starts normally. Make sure the brake pedal is depressed and the shift position is in P at this time (A/T).

Make sure that the clutch pedal is depressed (M/T).

(b) Check that the engine switch mode can be changed by pushing the engine switch.

HINT
Without depressing the brake pedal (A/T) or clutch pedal (M/T), push the engine switch repeatedly. Engine switch mode should turn from off to on (ACC) to on (IG) and back to off.

With the brake pedal (A/T) or clutch pedal (M/T) depressed, push the engine switch repeatedly. Engine switch mode should turn to ENGINE START from any status.

OK:

Engine can start normally.

NEXT -- Continue to next step.

7. PROBLEM SYMPTOMS TABLE

Result:





B -- Go to step 9
A -- Continue to next step.

8. OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Terminals of ECU Pinout Values and Diagnostic Parameters

(b) DATA LIST/ACTIVE TEST Scan Tool Testing and Procedures

NEXT -- Continue to next step.

9. REPAIR OR REPLACE

NEXT -- Continue to next step.

10. CONFIRMATION TEST

NEXT -- END