Entry And Start System How To Proceed With Troubleshooting
VEHICLE BROUGHT TO WORKSHOP
CUSTOMER PROBLEM ANALYSIS CHECK
INSPECT BATTERY VOLTAGE
INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
CHECK FOR DTC*
INSPECT BASIC OPERATION
PROBLEM SYMPTOMS TABLE
OVERALL ANALYSIS AND TROUBLESHOOTING*
REPAIR OR REPLACE
CONFIRMATION TEST
Entry And Start System -- How To Proceed With Troubleshooting |
- HINT:
- Use the following procedures to troubleshoot the push-button start function.
- *: Use the intelligent tester.
1.VEHICLE BROUGHT TO WORKSHOP |
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:
What
| Vehicle model, system name
|
When
| Date, time, occurrence frequency
|
Where
| Road conditions
|
Under what conditions?
| Running conditions, driving conditions, weather conditions
|
How did it happen?
| Problem symptoms
|
3.INSPECT BATTERY VOLTAGE |
- Standard Voltage:
- 11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
4.INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
Use the intelligent tester to check if the CAN Communication System is functioning normally (for LHD: CAMRY_ACV40 RM000000WI605LX.html) (for RHD: CAMRY_ACV40 RM000000WI605KX.html).
- Result:
Result
| Proceed to
|
CAN DTC is not output
| A
|
CAN DTC is output (for LHD)
| B
|
CAN DTC is output (for RHD)
| C
|
Check for DTCs and note any codes that are output (CAMRY_ACV40 RM000000YEH05QX.html).
Clear the DTCs.
Recheck for DTCs.
- Result:
Result
| Proceed to
|
DTC does not reoccur
| A
|
DTC reoccurs
| B
|
6.INSPECT BASIC OPERATION |
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 P at this time.
Check that the engine switch mode can be changed by pushing the engine switch.
- HINT:
- Without depressing the brake pedal, 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 depressed, push the engine switch repeatedly. Engine switch mode should turn to ENGINE START from any status.
- OK:
- Engine can start normally.
- Result:
Result
| Proceed to
|
Fault is not listed in the problem symptoms table
| A
|
Fault is listed in the problem symptoms table
| B
|
8.OVERALL ANALYSIS AND TROUBLESHOOTING* |
Terminals of ECU (CAMRY_ACV40 RM000000XI2058X.html)
Data List/Active Test (CAMRY_ACV40 RM000000XI505PX.html)