TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.099
SRS/Supplemental Restraint System100 / 102
p.101
SUPPLEMENTAL RESTRAINT SYSTEM — TROUBLESHOOTING — MK4 Supra Supplemental Restraint System, page 100
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RS–100 SUPPLEMENTAL RESTRAINT SYSTEM – TROUBLESHOOTING 3 Check voltage between terminals Tc of DLC1 or DLC2 and body ground. ACC ON or DLC 1 DLC 2 Tc Tc AB0118 AB0119 96-23-1-A S-17-1 C Measure voltage between terminals Tc of DLC1 or DLC2 and body ground. OK Voltage: Battery positive voltage NG OK Check harness between terminals E1 of DLC1 or DLC2 and body ground. 4 Check center airbag sensor assembly. LOCK ACC ON or Center Airbag Sensor Assembly Tc AB0117 AB0118 AB0119 R05267 P (1) Turn ignition switch to LOCK. (2) Disconnect negative (–) terminal cable from the battery, and wait at least 90 seconds. (3) Disconnect center airbag sensor assembly connector. (4) Insert test probe into terminal Tc from back side as shown. (5) Connect center airbag sensor assembly connector with check pin. (6) Connect negative (–) terminal cable to battery. (7) Turn ignition switch to ACC or ON and wait at least 20 seconds. (8) Using service wire, connect test probe of terminal Tc to body ground. C Check operation SRS warning light. OK SRS warning light comes on. NOTICE: Never made a mistake with the terminal connection position as this will cause a malfunction. NG OK Check harness between center airbag sensor assembly and DLC1 or DLC2. Replace center airbag sensor assembly.