How To Proceed With Troubleshooting
THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function): HOW TO PROCEED WITH TROUBLESHOOTING
HINT
* Use these procedures to troubleshoot the smart access system with push-button start (for Entry Function).
* *: Use the Techstream.
1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. CUSTOMER PROBLEM ANALYSIS
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 for problem analysis:
* *: Be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem, and then check for DTCs.
(a) If the entry lock/unlock function does not operate for all doors.
(b) If the entry lock function does not operate.
(c) If the entry unlock function does not operate.
(d) If both the entry lock and unlock functions do not operate.
(e) If the wireless lock and unlock functions do not operate.
(f) If there is no power even when the power switch is pressed [does not turn on (ACC)].
(g) If the hybrid control system does not start with the push start function.
(h) If the wireless answer-back buzzer and outside warning buzzers do not sound.
(i) Did you try to hybrid control system start by put the electrical key direct on the power switch and press the power switch on (IG).
(j) If the interior warning buzzers do not sound.
(k) Any other details concerning the problem.
* If it is supposed that electric wave interference is likely, be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem.
(a) Specific locations where the system does not operate (such as near TV towers, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc.).
(b) Specific times when the system does not operate:
Whether or not symptoms occurred immediately after purchase or only recently.
Whether or not the symptoms occurred when the key was even right by the vehicle (electrical key antenna).
(c) If the system does not operate only when near specific vehicles (there may be an effect from electric waves from the wireless systems of other vehicles).
(d) If the system operates intermittently.
(e) If the key is bundled together with other items.
(f) If the key is carried together with other electronic devices, such as cell phones, personal computers, portable music players, other electrical keys, etc. (keep the key at least 0.1 m (0.33 ft.) away from such items).
(g) Where the key is being kept when not in use:
Whether or not the key being placed within 1 m (3.28 ft.) of items such as TVs, DVD recorders, induction cookers, rice cookers, dishwashers, modems, cell phones, personal computers, microwave ovens, desk or floor lamps, cordless telephones, etc.
(h) If there are electronic devices that transmit electric waves placed in the vehicle.
(i) When the key battery was last replaced (when the battery is low).
The key battery can be checked roughly using the "Key Low Battery" item in the Data List Smart Access System With Push-Button Start (For Entry Function).
(j) If the customer installed any optional components (theft deterrent devices, wireless fog lights, etc.) to the vehicle.
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 COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Result
B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.
5. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*
(a) Use the Techstream to check if the LIN communication system is functioning normally.
Result
B -- GO TO LIN COMMUNICATION SYSTEM LIN Communication System
A -- Continue to next step.
6. CHECK FUNCTION OF WIRELESS DOOR LOCK CONTROL SYSTEM*
(a) Use the Techstream to check if the wireless door lock control system is functioning normally.
Result
B -- GO TO WIRELESS DOOR LOCK CONTROL SYSTEM Wireless Door Lock Control System
A -- Continue to next step.
7. CHECK FOR DTC*
(a) Recheck for DTCs Smart Access System With Push-Button Start (For Entry Function). Based on the DTCs output, proceed each system's DTC procedure.
Result
B -- GO TO ENGINE IMMOBILISER SYSTEM Engine Immobilizer System
C -- GO TO DIAGNOSTIC TROUBLE CODE CHART Smart Access System With Push-Button Start (For Entry Function)
A -- Continue to next step.
8. PROBLEM SYMPTOMS TABLE
(a) Refer to Problem Symptoms Table Problem Symptoms Table.
Result
B -- Go to step 10
A -- Continue to next step.
9. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) Operation Check Operation Check.
(b) Check Data List / Active Test Smart Access System With Push-Button Start (For Entry Function).
(c) Check Terminals of ECU Smart Access System With Push-Button Start (For Entry Function).
NEXT -- Continue to next step.
10. REPAIR OR REPLACEMENT
NEXT -- Continue to next step.
11. CHECK FOR DTC*
(a) Clear the DTCs Smart Access System With Push-Button Start (For Entry Function).
(b) Check for DTCs Smart Access System With Push-Button Start (For Entry Function).
HINT
Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure Smart Access System With Push-Button Start (For Entry Function).
Result
B -- GO TO DIAGNOSTIC TROUBLE CODE CHART Smart Access System With Push-Button Start (For Entry Function)
A -- END