Problem Symptoms Table
WARNING: This page is about a different car, the 2012 Lexus CT 200h. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
WIRELESS DOOR LOCK CONTROL SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Wireless control function and entry function do not operate | Proceed to "All Door Entry Lock / Unlock Functions and Wireless Functions do not Operate" | Refer to All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate |
| Wireless control function does not operate but entry function operates | Electrical key transmitter | - |
| Only answer-back function does not operate normally | Proceed to "No answer-back" | Refer to No Answer-Back |
| Only automatic lock function does not operate normally | Perform operation check | Refer to OPERATION CHECK |
| Lighting system (door courtesy light switch circuit) | Refer to Door Courtesy Switch Circuit | |
| Main body ECU (multiplex network body ECU) | - | |
| Only illuminated entry function does not operate | Perform operation check | Refer to OPERATION CHECK |
| Lighting system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Main body ECU (multiplex network body ECU) | - | |
| Only door ajar warning function does not operate | Perform operation check | Refer to OPERATION CHECK |
| Lighting system (door courtesy light switch circuit) | Refer to Door Courtesy Switch Circuit | |
| Main body ECU (multiplex network body ECU) | - | |
| Only panic alarm function does not operate | Perform operation check | Refer to OPERATION CHECK |
| Lighting system (int) (interior lights) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Lighting system (ext) (headlights, taillights, hazard warning lights) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Theft deterrent system (vehicle horns, security horn) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Main body ECU (multiplex network body ECU) | - |