RS–47 SUPPLEMENTAL RESTRAINT SYSTEM – TROUBLESHOOTING Diagnostic trouble code clearance Using diagnosis check wire: (a) Connect the 2 service wires to terminals Tc and AB of DLC1 or DLC2. (b) Turn the ignition switch to ACC or ON and wait approx. 6 seconds. (c) Starting with the Tc terminal, apply body ground alternately to terminal Tc and terminal AB twice each in cycles of 1.0 seconds. Confirm that body ground is absolute. Finally, keep applying body ground to terminal Tc. HINT: When alternately grounding terminals Tc and AB, re- lease ground from one terminal and immediately apply it to the other terminal within an interval of 0.2 second. If diagnos- tic trouble codes do not clear, repeat the above procedure un- til the codes are cleared. DLC 1 AB Terminal Time of Body Ground Tc OFF 1 second Tc (± 0.5 sec.) 1 second (± 0.5 sec.) Body Ground ① ③ ⑤ DLC 2 Tc AB RO7090 AB0066 OFF AB Body Ground ② ④ 50 m sec. ON Several seconds OFF 50 m sec. R06853 (d) Several seconds after doing the clearing procedure, the SRS warning light will blink in a 50 m sec. cycle to indicate the codes have been cleared. Using TOYOTA hand–held tester: (a) Hook up the TOYOTA hand–held tester to the DLC1 or DLC2. (b) Clear the diagnostic trouble codes by following the prompts on the tester screen. HINT: Please refer to the TOYOTA hand–held tester opera- tor's manual for further details. FI6997