Problem Symptoms Table
If a normal system code is displayed during the DTC check, but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
HINT:
- The following is the troubleshooting procedure for the wireless door lock control of a vehicle without the smart key system.
- Inspect the fuse and relay before investigating the suspected areas shown in the table below.
- Inspect each malfunction circuit in numerical order for its corresponding symptom.
WIRELESS DOOR LOCK CONTROL SYSTEM:
| Symptom | Suspected Area | See |
|---|---|---|
| The wireless door lock control system does not operate. | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Check if the CAN communication DTC is output | Refer to DIAGNOSTIC TROUBLE CODE CHART | |
| 3. Door control transmitter | Refer to INSPECTION | |
| 4. Door courtesy switch circuit | Refer to Door Courtesy Switch Circuit | |
| 5. Luggage compartment door courtesy switch | Refer to Luggage Compartment Door Courtesy Switch Circuit | |
| 6. Power source circuit | Refer to Power Source Circuit | |
| 7. Replace door control receiver | - | |
| 8. Replace certification ECU | - | |
| 9. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - | |
| The automatic lock function does not operate normally. | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Door courtesy switch circuit | Refer to Door Courtesy Switch Circuit | |
| 3. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - | |
| The illuminated entry function only does not operate. | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Lighting system | Refer to PROBLEM SYMPTOMS TABLE | |
| 3. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - | |
| The answer back function does not operate (Wireless door lock buzzer). | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Lock position switch circuit | - | |
| - Driver door | Refer to Driver Side Door UNLOCK Detection Switch Circuit | |
| - Front passenger door | Refer to Front Passenger Side Door UNLOCK Detection Switch Circuit | |
| - Rear passenger door LH | Refer to Rear Door UNLOCK Detection Switch LH Circuit | |
| - Rear passenger door RH | Refer to Rear Door UNLOCK Detection Switch RH Circuit | |
| 3. Wireless door lock buzzer circuit | Refer to Wireless Door Lock Buzzer Circuit | |
| 4. Replace certification ECU | - | |
| 5. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - | |
| The answer back function does not operate (Hazard warning light). | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Lock position switch circuit | - | |
| - Driver door | Refer to Driver Side Door UNLOCK Detection Switch Circuit | |
| - Front passenger door | Refer to Front Passenger Side Door UNLOCK Detection Switch Circuit | |
| - Rear passenger door LH | Refer to Rear Door UNLOCK Detection Switch LH Circuit | |
| - Rear passenger door RH | Refer to Rear Door UNLOCK Detection Switch RH Circuit | |
| 3. Wire harness | - | |
| 4. Turn signal flasher assembly | Refer to ON-VEHICLE INSPECTION | |
| 5. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - | |
| The door ajar warning function only does not operate. | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Door courtesy switch circuit | Refer to Door Courtesy Switch Circuit | |
| 3. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - | |
| The panic alarm function only does not operate. | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Door control transmitter | Refer to INSPECTION | |
| 3. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - | |
| The panic alarm function does not operate (Vehicle horn). | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Horn circuit | Refer to Horn Circuit | |
| 3. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - | |
| The panic alarm function does not operate (Security horn). | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Security horn circuit | Refer to Security Horn Circuit | |
| 3. Replace certification ECU | - | |
| 4. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - | |
| The panic alarm function does not operate (Hazard warning light). | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Wire harness | - | |
| 3. Turn signal flasher assembly | Refer to ON-VEHICLE INSPECTION | |
| 4. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - | |
| The panic alarm function does not operate (Headlight or taillight). | 1. Perform the operation check | Refer to OPERATION CHECK |
| 2. Lighting system | Refer to PROBLEM SYMPTOMS TABLE | |
| 3. If the symptom still occurs after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument panel J/B) | - |