Problem Symptoms Table
HINT:
Use the table below 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
WIRELESS DOOR LOCK CONTROL SYSTEM SYMPTOM
| Symptom | Suspected area | See reference |
|---|---|---|
| All function of wireless door lock control system do not operate | 1. ECU Power Source Circuit | ECU POWER SOURCE CIRCUIT |
| 2. Door Courtesy Switch Circuit | DOOR COURTESY SWITCH CIRCUIT | |
| 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. Wireless Door Lock ECU | - | |
| 6. Body ECU (Main) | - | |
| Only door unlock operation is not possible (Lock operation is possible) | 1. Door Key Lock and Unlock Switch Circuit | DOOR KEY LOCK / UNLOCK SWITCH CIRCUIT |
| 2. Door Unlock Detection Switch Circuit | DOOR UNLOCK DETECTION SWITCH CIRCUIT | |
| 3. Wireless Door Lock ECU | - | |
| 4. Body ECU (Main) | - | |
| 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. Wireless Door Lock ECU | - | |
| 3. Body ECU (Main) | - | |
| Only transmitter mis-operation prevention function is not possible | 1. Key Unlock Warning Switch Circuit | UNLOCK WARNING SWITCH CIRCUIT |
| 2. Wireless Door Lock ECU | - | |
| 3. Body ECU (Main) | - | |
| Wireless door lock function operates even when each door is opened | 1. Door Courtesy Switch Circuit | DOOR COURTESY SWITCH CIRCUIT |
| 2. Wireless Door Lock ECU | - | |
| 3. Body ECU (Main) | - | |
| 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. Wireless Door Lock ECU | - | |
| 3. Body ECU (Main) | - | |
| Wireless door lock operates, but the buzzer does not sound | 1. Wireless Door Lock Buzzer Circuit | WIRELESS DOOR LOCK BUZZER CIRCUIT |
| 2. Wireless Door Lock ECU | - | |
| 3. Body ECU (Main) | - | |
| Wireless door lock operates, but the taillights do not respond | 1. Taillight Relay Circuit | TAILLIGHT RELAY CIRCUIT |
| 2. Taillight Circuit | TAILLIGHT CIRCUIT | |
| 3. Wireless Door Lock ECU | - | |
| 4. Body ECU (Main) | - |