Inspection Procedure
- CHECK WIRE HARNESS (POWER SOURCE CIRCUIT)
- Turn the ignition switch to the LOCK position.
- Disconnect the negative (-) terminal cable from the battery.
- Disconnect the connector from the seat belt control ECU.
- Connect the negative (-) terminal cable to the battery.
- Turn the ignition switch to the ON position.
- Measure the voltage according to the value(s) in POWER SOURCE CIRCUIT - VOLTAGE TABLE .
Standard:
POWER SOURCE CIRCUIT - VOLTAGE TABLETester Connection Condition Specified Condition S63-3 (IG1) - Body ground Ignition switch LOCK -> ON 0 -> 10 to 14 V S63-9 (+B) - Body ground Always 10 to 14 V NG: REPAIR OR REPLACE WIRE HARNESS (BATTERY - SEAT BELT CONTROL ECU), CHARGING SYSTEM AND BATTERY
OK: Go to next step
- CHECK WIRE HARNESS (GROUND CIRCUIT)
- Turn the ignition switch to the LOCK position.
- Disconnect the negative (-) terminal cable from the battery.
- Measure the resistance according to the value(s) in GROUND CIRCUIT - RESISTANCE TABLE .
Standard:
GROUND CIRCUIT - RESISTANCE TABLETester Connection Condition Specified Condition S63-18 (PGND) - Body ground Always Below 1 Ω NG: REPAIR OR REPLACE WIRE HARNESS
OK: REPLACE SEAT BELT CONTROL ECU (See step 10 in REPLACEMENT )