| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000028KBH |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 - ] | ||
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HOW TO PROCEED WITH TROUBLESHOOTING |
CAUTION / NOTICE / HINT
HINT:
- Use this procedure to troubleshoot the theft deterrent system.
- *: Use the GTS.
PROCEDURE
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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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 for problem analysis:
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What |
Vehicle model, system name |
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When |
Date, time, occurrence frequency, whether the problem occurred recently or has been occurring for a long time |
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Where |
Whether the problem occurs at a specific location |
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Under what conditions? |
Whether the doors were locked or unlocked, whether the ignition switch was ON, whether the hybrid control system*1 or engine*2 has started. |
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How did it happen? |
Problem symptoms |
- *1: for HV Model
- *2: for Gasoline Model
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3. |
READ AND SAVE VEHICLE CONTROL HISTORY (ROB)* |
NOTICE:
- If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before vehicle control history (RoB) has been read and saved, the vehicle control vehicle control history (RoB) information could be lost.
- The vehicle control vehicle control history (RoB) function uses the current system time of the GTS and the time counter inside the controlling ECU to calculate the times shown in the vehicle control vehicle control history (RoB). For this reason, before reading the vehicle control vehicle control history (RoB), first make sure that the GTS system clock is accurately set to the current time.
(a) Read and save vehicle control history (RoB) using the GTS.
Body Electrical > Main Body > Utility
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Tester Display |
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Vehicle Control History (RoB) |
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4. |
PRE-CHECK |
(a) Measure the auxiliary battery voltage with the ignition switch off.*1
(b) Measure the auxiliary battery voltage.*2
- *1: for HV Model
- *2: for Gasoline Model
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.
(c) Check the fuses and relays.
(d) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.
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5. |
SYMPTOM SIMULATION |
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6. |
INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Using the GTS, check for CAN communication system DTCs.
for HV Model: Click here
![2023 - 2025 MY Corolla Corolla HV [11/2022 - ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)
for Gasoline Model: Click here
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Result |
Proceed to |
|---|---|
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CAN DTCs are not output |
A |
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CAN DTCs are output |
B |
| B |
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GO TO CAN COMMUNICATION SYSTEM for HV Model: Click here
for Gasoline Model: Click here
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7. |
CHECK POWER DOOR LOCK CONTROL SYSTEM |
(a) Check the power door lock control system.
Click here
OK:
Pwer door lock control system is normal
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Result |
Proceed to |
|---|---|
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OK (w/ Wireless Door Lock Control System) |
A |
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OK (w/o Wireless Door Lock Control System) |
B |
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NG |
C |
| B |
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| C |
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8. |
CHECK WIRELESS DOOR LOCK CONTROL SYSTEM |
(a) Check the wireless door lock control system.
w/ Smart Key System: Click here
w/o Smart Key System: Click here
OK:
Wireless door lock control system is normal
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Result |
Proceed to |
|---|---|
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OK (w/ Entry Function) |
A |
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OK (w/o Entry Function and with Smart Key System) |
B |
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OK (w/o Smart Key System) |
C |
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NG |
D |
| B |
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| C |
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| D |
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GO TO WIRELESS DOOR LOCK CONTROL SYSTEM w/ Smart Key System: Click here
w/o Smart Key System: Click here
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9. |
CHECK SMART KEY SYSTEM (for Entry Function) |
(a) Check the smart key system (for Entry Function).
Click here
OK:
Smart key system (for Entry Function) is normal
| NG |
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10. |
CHECK SMART KEY SYSTEM (for Start Function) |
(a) Check the smart key system (for Start Function).
for HV Model: Click here
for Gasoline Model: Click here
OK:
Smart key system (for Start Function) is normal
| NG |
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GO TO SMART KEY SYSTEM (for Start Function) for HV Model: Click here
for Gasoline Model: Click here
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11. |
CHECK LIGHTING (EXT) |
(a) Check the lighting system (EXT).
Click here
OK:
Lighting system (EXT) is normal
| NG |
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12. |
CHECK LIGHTING SYSTEM (INT) |
(a) Check the lighting system (INT).
Click here
OK:
Lighting system (INT) is normal
| NG |
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13. |
CHECK HORN SYSTEM |
(a) Check the horn system.
OK:
Horn system is normal
| NG |
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14. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
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Result |
Proceed to |
|---|---|
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Fault is not listed in Problem Symptoms Table (Fault can be simulated) |
A |
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Fault is not listed in Problem Symptoms Table (Fault cannot be simulated) |
B |
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Fault is listed in Problem Symptoms Table |
C |
| B |
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| C |
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15. |
PERFORM OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) System Description
Click here
(b) Terminals of ECU
Click here
(c) Data List / Active Test
Click here
(d) Inspection
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16. |
REPAIR OR REPLACE |
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17. |
CONFIRMATION TEST |
| NEXT |
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END |
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