Toyota Yaris: Lin Communication System / LIN Communication Missing Message (B228787)
DESCRIPTION
When an internal malfunction is detected in the certification ECU (smart key ECU assembly), this DTC is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B228787 | LIN Communication Missing Message | An internal malfunction occurs in the certification ECU (smart key ECU assembly). | Certification ECU (smart key ECU assembly) |
CAUTION / NOTICE / HINT
NOTICE:
- When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry & Start (CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
- Before replacing the certification ECU (smart key ECU assembly), refer to Registration.
PROCEDURE
| 1. | CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Smart Key > Trouble Codes| Result | Proceed to |
|---|---|
| DTC 278588 is output | A |
| DTC 278588 is not output | B |
| A |
 | GO TO DTC CHART |
|
| 2. | CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Power Source Control > Clear DTCs
|
| 3. | CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Power Source Control > Trouble Codes| Result | Proceed to |
|---|---|
| DTC 228787 is output | A |
| DTC 228787 is not output | B |
| A |
 | REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
| B |
 | USE SIMULATION METHOD TO CHECK |
P/W Master SW System Missing Message (B120687,B232187,B232287)
DESCRIPTION This DTC is stored when LIN communication between the main body ECU (multiplex network body ECU) and multiplex network master switch assembly, front power window regulator motor assembly (driver door), front power window regulator motor assembly (front passenger door) stops for 10 seconds or more...
Door LIN Bus off (B232588)
DESCRIPTION If the main body ECU (multiplex network body ECU) detects a communication error with an ECU connected to the door bus lines for 8 seconds or more, DTC B232588 will be stored...
Other information:
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Front Seat Belt Pretensioners
The front seat belt pretensioners are designed to deploy in moderate or severe frontal, near frontal collisions.
In addition, the pretensioners operate when a side collision or a rollover accident is detected. The pretensioners operate differently depending on what types of air bags are equipped. For more details about the seat belt pretensioner operation, refer to the SRS Air Bag Deployment Criteria.
