TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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SRS/Supplemental Restraint System96 / 102
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SRS Warning Light System (Always lit up when ignition switch is in Lock position.) — MK4 Supra Supplemental Restraint System, page 96
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RS–96 SUPPLEMENTAL RESTRAINT SYSTEM – TROUBLESHOOTING SRS Warning Light System (Always lit up when ignition switch is in Lock position.) CIRCUIT DESCRIPTION The SRS warning light is located on the cluster finish panel. When the SRS is normal, the SRS warning light lights up for approx. 6 seconds after the ignition switch is turned from LOCK position to ACC or ON position, and then turns off automatically. If there is a malfunction in the SRS, the SRS warning light lights up to inform the driver of the abnormality. When terminals Tc and E1 of the DLC1 or DLC2 are connected, the diagnostic trouble code is displayed by the blinking of the SRS warning light. WIRING DIAGRAM Center Airbag Sensor Assembly DLC1 Tc 11 P-B 21 P-B P-B 3 7 II1 ← P-B 1E ← 1G P-B 7 Tc B Junction Block No. 1 DLC2 Tc P-B 11 4 ►► IF1 AB B-Y 2 12 ►► IF1 1 ALT POWER AB 5 B-Y 12 B-Y B-Y 4 9 II1 ← B-Y 1E ← 1G B-Y 12 LA 2 Junction Block No. 1 Relay Block No.2 Battery W-L 2 ECU-B 13 1B ← ○~○ 1E W-R 2 ○ 15 Junction Block No.1 Telltale Light RH (SRS Warning Light) R06909