Problem Symptoms Table
HINT:
Use PROBLEM SYMPTOMS TABLE (WIRELESS DOOR LOCK CONTROL SYSTEM) to help determine the cause of the problem symptom. 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.
Wireless door lock control system
PROBLEM SYMPTOMS TABLE (WIRELESS DOOR LOCK CONTROL SYSTEM)
| Symptom | Suspected area | Reference |
|---|---|---|
| All functions of wireless door lock control system do not operate | 1. ECU Power Source Circuit | ECU POWER SOURCE CIRCUIT |
| 2. Door Courtesy Switch Circuit | FRONT DOOR COURTESY SWITCH | |
| 3. Door Key Lock and Unlock Switch Circuit | DOOR KEY LOCK/UNLOCK SWITCH CIRCUIT | |
| 4. Key Unlock Warning Switch Circuit | UNLOCK WARNING SWITCH CIRCUIT | |
| 5. Door Control Receiver | DOOR CONTROL RECEIVER | |
| 6. Body ECU | - | |
| 7. Door Unlock Detection Switch Circuit | DOOR UNLOCK DETECTION SWITCH CIRCUIT | |
| 8. Door Control Receiver | DOOR CONTROL RECEIVER | |
| Only door lock operation is not possible (Unlock operation is possible) | 1. Door Key Lock and Unlock Switch Circuit | DOOR KEY LOCK/UNLOCK SWITCH CIRCUIT |
| 2. Body ECU | - | |
| Only transmitter misoperation prevention function is not possible | 1. Key Unlock Warning Switch Circuit | UNLOCK WARNING SWITCH CIRCUIT |
| 2. Door Control Receiver | DOOR CONTROL RECEIVER | |
| 3. Body ECU | - | |
| Wireless door lock functions operates even when each door is opened | 1. Door Courtesy Switch Circuit | FRONT DOOR COURTESY SWITCH |
| 2. Door Control Receiver | DOOR CONTROL RECEIVER | |
| 3. Body ECU | - | |
| Wireless door lock functions incorrectly. (Although one door is unlocked, when the transmitter switch is pressed, all doors unlock) | 1. Door Unlock Detection Switch Circuit | DOOR UNLOCK DETECTION SWITCH CIRCUIT |
| 2. Door Control Receiver | DOOR CONTROL RECEIVER | |
| 3. Body ECU | - | |
| Wireless door lock operates, but the taillights do not respond | 1. Taillight Relay Circuit | TAILLIGHT RELAY CIRCUIT |
| 2. Taillight Circuit | - | |
| 3. Door Control Receiver | DOOR CONTROL RECEIVER | |
| 4. Body ECU | - | |
| Wireless door lock does not operate | 1. Wireless Door Lock Control Circuit | DTC B1242 WIRELESS DOOR LOCK TUNER CIRCUIT MALFUNCTION |
| 2. Door Control Receiver | DOOR CONTROL RECEIVER |