Up to 08/2009
PRE-COLLISION: PRE-COLLISION SYSTEM: B2036: Power Supply Relay Malfunction Open
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.
INSPECTION PROCEDURE
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. INSPECT SEAT BELT CONTROL ECU (+B TERMINAL VOLTAGE)
(a) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(b) Disconnect the seat belt control ECU connector.
(c) Connect the cable to the negative (-) battery terminal.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Text in Illustration
(e) Disconnect the cable from the negative (-) battery terminal.
(f) Reconnect seat belt control ECU connector.
(g) Connect the cable to the negative (-) battery terminal.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (+B CIRCUIT)
OK -- REPLACE SEAT BELT CONTROL ECU