Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - PRE-CRASH SAFETY
INSPECT SEAT BELT CONTROL ECU (+B TERMINAL VOLTAGE)
DTC B2036 Power Supply Relay Malfunction Open
DESCRIPTION
If the seat belt control ECU judges that there is a malfunction in its internal circuit as a result of self-diagnosis, or if the power source voltage (+B) is not input to the seat belt control ECU, this DTC will be stored.
| DTC Code | DTC Detection Condition | Trouble Area |
| B2036 | Malfunction in seat belt control ECU Power source voltage (+B) is not input to the seat belt control ECU. | Harness or connector Fuse Seat belt control ECU |
WIRING DIAGRAM
INSPECTION PROCEDURE
- CAUTION:
- The pretensioner is built into the front seat outer belt assembly. 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.
- NOTICE:
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
| 1.INSPECT SEAT BELT CONTROL ECU (+B TERMINAL VOLTAGE) |
Disconnect the negative (-) battery terminal.
- CAUTION:
- Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
Disconnect the E41 connector of the seat belt control ECU.
Connect the negative (-) battery terminal.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition E41-7 (+B) - Body ground Always 11 to 14 V
| Result | Proceed to |
| OK (for LHD) | A |
| OK (for RHD) | B |
| NG | C |
Disconnect the negative (-) battery terminal.
Reconnect the E41 seat belt control ECU connector.
Connect the negative (-) battery terminal.
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| A | ||
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