| DTC Code | DTC Name |
|---|---|
| B2000 | Short to B+ in Seat Belt Motor RH Circuit |
DESCRIPTION
The seat belt control ECU receives information from the driving support ECU assembly using CAN communication and tightens the seat belt by operating the motor in the front seat outer belt assembly RH.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B2000 | Short to B+ in the seat belt motor RH circuit continues for 1 second or more. |
|
CAUTION / NOTICE / HINT
The pretensioner is built into the front seat outer belt assembly RH. Be sure to follow the correct inspection procedure, as failure to follow the correct procedure (such as inspection of incorrect connectors) may deploy the pretensioner.
PROCEDURE
- Click here
INSPECT FRONT SEAT OUTER BELT ASSEMBLY RH
-
Disconnect the Q21 front seat outer belt assembly RH connector.
Tip:Do not remove the front seat outer belt assembly RH.
-
Turn the power switch on (IG).
-
Measure the voltage according to the value(s) in the table below.
Standard Voltage Tester Connection Condition Specified Condition Q21-1 - Body ground Power switch on (IG) Below 1 V Q21-2 - Body ground Power switch on (IG) Below 1 V Table 2. Text in Illustration *a Component without harness connected
(Front Seat Outer Belt Assembly RH)
CAUTION:Do not check the wrong connector.
- OKClick here
- NG
REPLACE FRONT SEAT OUTER BELT ASSEMBLY RH (Click here)
-
- Click here
CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY RH - SEAT BELT CONTROL ECU)
-
Disconnect the H77 seat belt control ECU connector.
-
Turn the power switch on (IG).
-
Measure the voltage according to the value(s) in the table below.
Standard Voltage Tester Connection Condition Specified Condition H77-1 (MOR-) - Body ground Power switch on (IG) Below 1 V H77-2 (MOR+) - Body ground Power switch on (IG) Below 1 V Table 3. Text in Illustration *a Front view of wire harness connector
(to Seat Belt Control ECU)
- OK
REPLACE SEAT BELT CONTROL ECU (Click here)
- NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
-