Symptom Table
SYMPTOM CHART
| Symptom | Suspect Systems | Refer to |
|---|---|---|
| Pre-crash seat belt system does not operate. (Neither RH nor LH operate.) | Ignition power supply system inspection | IGNITION POWER SUPPLY CIRCUIT CHECK |
| Check motor power supply system | B2454 MOTOR PWR SUP CIRC | |
| Ground system inspection | PRE-CRASH SEAT BELT CONTROL UNIT GROUND CIRCUIT CHECK | |
| CAN communication system inspection | COMPONENT DIAGNOSIS | |
| When the above is normal, check connector housing for damage, looseness and poor connection. Replace pre-crash seat belt control unit if it is normal. | PRE-CRASH SEAT BELT CONTROL UNIT | |
| RH pre-crash seat belt system does not operate. | Check RH seat belt buckle switch system | SEAT BELT BUCKLE SWITCH (PASSENGER SIDE) CIRCUIT CHECK |
| Check RH pre-crash seat belt motor system | B2451 SB MOTOR RH CIRC | |
| When the above is normal, check connector housing for damage, looseness and poor connection. Replace pre-crash seat belt control unit if it is normal. | PRE-CRASH SEAT BELT CONTROL UNIT | |
| LH pre-crash seat belt system does not operate. | Check LH seat belt buckle switch system | SEAT BELT BUCKLE SWITCH (DRIVER SIDE) CIRCUIT CHECK |
| Check LH pre-crash seat belt motor system | B2452 SB MOTOR LH CIRC | |
| When the above is normal, check connector housing for damage, looseness and poor connection. Replace pre-crash seat belt control unit if it is normal. | PRE-CRASH SEAT BELT CONTROL UNIT | |
| Pre-crash seat belt system does not operate during emergency brake operation. | CAN communication system inspection | COMPONENT DIAGNOSIS |
| Check brake pedal stroke sensor system | B2453 BR STROK SEN CIRC | |
| Check brake pedal stroke sensor shield ground system | BRAKE PEDAL STROKE SENSOR SHIELD WIRE CIRCUIT CHECK | |
| When the above is normal, check connector housing for damage, looseness and poor connection. Replace pre-crash seat belt control unit if it is normal. | PRE-CRASH SEAT BELT CONTROL UNIT |