Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software, and retest.
DTC Description
DTC
B0029-13 Open or increased resistance in the right side curtain airbag first inflator
Measure the resistance between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Right side curtain airbag inflator 2P connector (on the floor wire harness): disconnected
SRS unit connector B (39P): disconnected
SRS unit connector B (39P) terminals No. 12 and No. 13: jumped
Test point 1
Right side curtain airbag inflator 2P connector No. 1 (on the floor wire harness)
Test point 2
Right side curtain airbag inflator 2P connector No. 2 (on the floor wire harness)
Is there 1.0 ? or less?
YES
The RCA? and RCA? wires are OK. Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit. If the DTC does not clear, replace the floor wire harness.?
NO
Open in the floor wire harness; replace the floor wire harness, then clear the DTC.?