How To Proceed With Troubleshooting

THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function): HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use the following procedure to troubleshoot the start function.
* *: Use the Techstream.

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 problem analysis:





NEXT -- Continue to next step.

3. INSPECT AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the power switch off.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

NEXT -- Continue to next step.

4. CHECK CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally How to Proceed With Troubleshooting.

Result:





B -- GO TO CAN COMMUNICATION SYSTEM Diagnosis System
A -- Continue to next step.

5. CHECK LIN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the LIN communication system is functioning normally How to Proceed With Troubleshooting.

Result:





B -- GO TO LIN COMMUNICATION SYSTEM LIN Communication System
A -- Continue to next step.

6. CHECK FOR DTC (for Entry Function)*

(a) Check for DTC and note any codes that are output Smart Access System With Push-Button Start (for Start Function).

(b) Clear the DTC.

(c) Recheck for DTCs.

Result:





B -- GO TO DIAGNOSTIC TROUBLE CODE CHART Smart Access System With Push-Button Start (for Entry Function)
A -- Continue to next step.

7. CHECK FOR DTC (for Start Function)*

(a) Check for DTCs and note any codes that are output Smart Access System With Push-Button Start (for Start Function).

(b) Clear the DTC.

(c) Recheck for DTCs.

Result:





B -- GO TO DIAGNOSTIC TROUBLE CODE CHART Smart Access System With Push-Button Start (for Start Function)
A -- Continue to next step.

8. INSPECT BASIC OPERATION

(a) Check that the hybrid control system starts normally when the power switch is pushed with the brake pedal depressed and park (P) selected.

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

HINT
Without depressing the brake pedal, push the power switch repeatedly. The power source mode should change from off to on (ACC), to on (IG) and back to off.

With the brake pedal depressed, push the power switch. The hybrid control system should start regardless of the original power source mode.

OK:

Hybrid control system can start normally.

NEXT -- Continue to next step.

9. PROBLEM SYMPTOMS TABLE

Result:





B -- Go to step 11
A -- Continue to next step.

10. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU Smart Access System With Push-Button Start (for Start Function)

(b) Data List / Active Test Smart Access System With Push-Button Start (for Start Function)

NEXT -- Continue to next step.

11. REPAIR OR REPLACE

NEXT -- Continue to next step.

12. CONFIRMATION TEST

NEXT -- END