H01454 P22 P/T Squib (RH) Airbag Sensor Assembly PR+ PR– Y–B Y 1 2 6 5 C20 C20 – DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM DI–633 895 Author: Date: 2003 TOYOTA TACOMA (RM1002U) DTC B0130/63 Short in P/T Squib (RH) Circuit CIRCUIT DESCRIPTION The P/T squib (RH) circuit consists of the airbag sensor assembly and seat belt pretensioner (RH). It causes the SRS to deploy when the SRS deployment conditions are satisfied. For details of the function of each component, see OPERATION on page RS–2. DTC B0130/63 is recorded when a short is detected in the P/T squib (RH) circuit. DTC No. DTC Detecting Condition Trouble Area B0130/63
Short circuit between PR+ wire harness and PR– wire harness of squib
P/T squib (RH) malfunction
Airbag sensor assembly malfunction
Seat belt pretensioner (RH)
Airbag sensor assembly
Wire harness WIRING DIAGRAM DI55D–03 H01019 H02141 H02203 P/T Squib (RH) Airbag Sensor Assembly PR+ PR– (+) (–) DI–634 – DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM 896 Author: Date: 2003 TOYOTA TACOMA (RM1002U) INSPECTION PROCEDURE 1 Prepare for inspection. (See step 1 on page DI–675) 2 Check P/T squib (RH) circuit. PREPARATION: Release the airbag activation prevention mechanism of the connector (on the airbag sensor assembly side) between the airbag sensor assembly and the seat belt pretensioner (RH). (See page DI–588). CHECK: For the connector (on the seat belt pretensioner side) between the seat belt pretensioner (RH) and the airbag sensor assem- bly, measure the resistance between PR+ and PR–. OK: Resistance: 1 MΩ or Higher NG Repair or replace harness or connector be- tween seat belt pretensioner (RH) and airbag sensor assembly. OK H01020 AB0119 H01082 H10600 H10619 P/T Squib (RH) Airbag Sensor Assembly DTC B0130/63 ON → ← CG Tc DLC3 – DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM DI–635 897 Author: Date: 2003 TOYOTA TACOMA (RM1002U) 3 Check airbag sensor assembly. PREPARATION: (a) Connect the connector to the airbag sensor assembly. (b) Connect negative (–) terminal cable to the battery, and wait at least for 2 seconds. CHECK: (a) Turn ignition switch to ON and wait at least for 20 se- conds. (b) Clear DTC stored in memory. (See page DI–588) (c) Turn ignition switch to LOCK, and wait at least for 20 se- conds. (d) Turn ignition switch to ON, and wait at least for 20 se- conds. (e) Check DTC. (See page DI–588) OK: DTC B0130/63 is not output. HINT: Codes other than code B0130/63 may be output at this time, but they are not relevant to this check. NG Replace airbag sensor assembly. OK H01021 AB0119 H01082 H10600 H10620 → ← CG Tc ON Airbag Sensor Assembly P/T Squib (RH) DTC B0130/63 DLC3 DI–636 – DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM 898 Author: Date: 2003 TOYOTA TACOMA (RM1002U) 4 Check P/T squib (RH). PREPARATION: (a) Turn ignition switch to LOCK. (b) Disconnect negative (–) terminal cable from the battery, and wait at least for 90 seconds. (c) Connect the side airbag assembly (RH) connector. (d) Connect negative (–) terminal cable to the battery, and wait at least for 2 seconds. CHECK: (a) Turn ignition switch to LOOK, and wait at least for 20 se- cond. (b) Turn ignition switch to ON, and wait at least for 20 se- conds. (c) Clear DTC stored in memory. (See page DI–588) (d) Turn ignition switch to LOCK, and wait at least for 20 se- conds. (e) Turn ignition switch to ON, and wait at least for 20 se- conds. (f) Check DTC. (See page DI–588) OK: DTC B0130/63 is not output. HINT: Codes other than code B0130/63 may be output at this time, but they are not relevant to this check. NG Replace seat belt pretensioner (RH). OK From the results of the above inspection, the malfunctioning part can now be considered normal. To make sure of this, use the simulation method to check.